SYK

gene
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Summary

SYK (spleen associated tyrosine kinase, HGNC:11491) is a protein-coding gene on chromosome 9q22.2, encoding Tyrosine-protein kinase SYK (P43405). Non-receptor tyrosine kinase which mediates signal transduction downstream of a variety of transmembrane receptors including classical immunoreceptors like the B-cell receptor (BCR). In precision oncology, SYK OVEREXPRESSION is associated with resistance to Paclitaxel in Ovarian Cancer (CIViC Level D).

This gene encodes a member of the family of non-receptor type Tyr protein kinases. This protein is widely expressed in hematopoietic cells and is involved in coupling activated immunoreceptors to downstream signaling events that mediate diverse cellular responses, including proliferation, differentiation, and phagocytosis. It is thought to be a modulator of epithelial cell growth and a potential tumour suppressor in human breast carcinomas. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.

Source: NCBI Gene 6850 — RefSeq curated summary.

At a glance

  • Gene–disease (curated): immunodeficiency 82 with systemic inflammation (Strong, GenCC)
  • GWAS associations: 17
  • Clinical variants (ClinVar): 115 total — 1 pathogenic, 2 likely-pathogenic
  • Phenotypes (HPO): 51
  • Druggable target: yes — 54 molecules with ChEMBL bioactivity
  • Precision-oncology evidence (CIViC): 1 curated variant–drug association
  • MANE Select transcript: NM_003177

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:11491
Approved symbolSYK
Namespleen associated tyrosine kinase
Location9q22.2
Locus typegene with protein product
StatusApproved
Ensembl geneENSG00000165025
Ensembl biotypeprotein_coding
OMIM600085
Entrez6850

Gene structure

Transcript identifiers

Ensembl transcripts: 16 — 15 protein_coding, 1 protein_coding_CDS_not_defined

ENST00000375746, ENST00000375747, ENST00000375751, ENST00000375754, ENST00000476708, ENST00000865872, ENST00000865873, ENST00000865874, ENST00000865875, ENST00000865876, ENST00000865877, ENST00000865878, ENST00000865879, ENST00000970482, ENST00000970483, ENST00000970484

RefSeq mRNA: 4 — MANE Select: NM_003177 NM_001135052, NM_001174167, NM_001174168, NM_003177

CCDS: CCDS47992, CCDS6688

Canonical transcript exons

ENST00000375754 — 14 exons

ExonStartEnd
ENSE000011764259086458990864667
ENSE000011764359088851590888627
ENSE000011764479088774990887889
ENSE000011764589087876490878953
ENSE000011764679087757190877780
ENSE000011764779087467290874849
ENSE000011764869087420490874291
ENSE000011764949086713190867199
ENSE000011765059086504890865097
ENSE000011765189086220690862344
ENSE000011765249084543490845594
ENSE000014682739089552890898549
ENSE000014683029084385890844315
ENSE000038430409080181990801893

Expression profiles

Bgee: expression breadth ubiquitous, 239 present calls, max score 97.31.

FANTOM5 (CAGE): breadth broad, TPM avg 14.4341 / max 487.2953, expressed in 885 samples.

FANTOM5 promoters (8 alternative TSS)

Promoter IDTPM avgSamples expressed
9731912.4094860
973230.9855130
973210.6664248
973200.098442
973220.073831
973170.073330
973240.072038
973180.055423

Top tissues by expression

286 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
monocyteCL:000057697.31gold quality
mononuclear cellCL:000084296.84gold quality
leukocyteCL:000073896.81gold quality
granulocyteCL:000009495.15gold quality
bloodUBERON:000017895.13gold quality
epithelium of nasopharynxUBERON:000195194.97gold quality
bone marrow cellCL:000209293.04gold quality
bone marrowUBERON:000237192.84gold quality
vermiform appendixUBERON:000115492.68gold quality
trabecular bone tissueUBERON:000248392.46gold quality
lymph nodeUBERON:000002991.84gold quality
spleenUBERON:000210691.36gold quality
esophagus squamous epitheliumUBERON:000692089.70gold quality
jejunal mucosaUBERON:000039989.23gold quality
caecumUBERON:000115388.70gold quality
tonsilUBERON:000237288.40gold quality
rectumUBERON:000105287.83gold quality
amniotic fluidUBERON:000017387.62gold quality
duodenumUBERON:000211487.12gold quality
thymusUBERON:000237086.91gold quality
ileal mucosaUBERON:000033186.82gold quality
epithelium of esophagusUBERON:000197686.39gold quality
mucosa of transverse colonUBERON:000499186.01gold quality
thyroid glandUBERON:000204685.86gold quality
palpebral conjunctivaUBERON:000181285.77gold quality
right lobe of thyroid glandUBERON:000111985.70gold quality
left lobe of thyroid glandUBERON:000112085.69gold quality
small intestineUBERON:000210885.57gold quality
small intestine Peyer’s patchUBERON:000345485.51gold quality
endometrium epitheliumUBERON:000481185.51silver quality

Single-cell (SCXA)

Detected in 8 experiment(s), a significant marker in 7.

ExperimentMarker?Max mean expression
E-GEOD-84465yes37.27
E-HCAD-35yes34.91
E-CURD-122yes22.58
E-ANND-3yes17.41
E-MTAB-9067yes15.71
E-HCAD-25yes15.36
E-MTAB-10042yes4.53
E-MTAB-6386no686.41

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): CREM, ETS2, JUN, NR0B2, POU2F2, PPARG, SPI1, TP53, TXK

miRNA regulators (miRDB)

106 targeting SYK, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-6798-5P100.0065.77699
HSA-MIR-6758-5P100.0066.211470
HSA-MIR-6856-5P100.0065.471298
HSA-MIR-4510100.0066.602050
HSA-MIR-6127100.0066.762188
HSA-MIR-6129100.0066.462080
HSA-MIR-6130100.0066.692012
HSA-MIR-6133100.0066.482064
HSA-MIR-548C-3P99.9974.017587
HSA-MIR-6759-5P99.9966.54785
HSA-MIR-806899.9873.852376
HSA-MIR-512-3P99.9767.351049
HSA-MIR-6888-3P99.9765.951170
HSA-MIR-3688-3P99.9772.022834
HSA-MIR-1250-3P99.9670.044038
HSA-MIR-590-3P99.9674.346478
HSA-MIR-545-3P99.9570.742783
HSA-MIR-205-3P99.9269.923165
HSA-MIR-6783-3P99.8967.922059
HSA-MIR-612499.8769.783551
HSA-MIR-449299.8768.253611
HSA-MIR-4799-5P99.8270.602663
HSA-MIR-467999.7669.191229
HSA-MIR-432099.7565.80793
HSA-MIR-4755-5P99.7170.342716
HSA-MIR-5006-3P99.7170.262728
HSA-MIR-10394-5P99.6566.831852
HSA-MIR-120599.6566.761826
HSA-MIR-4743-3P99.6268.122095
HSA-MIR-613299.6065.831554

Literature-anchored findings (GeneRIF, showing 40)

  • Syk kinase is required for the sequential events of Fc gamma IIa receptor-mediated phagocytosis leading to particle uptake by the receptor-bearing monocyte or neutrophil. (PMID:11441091)
  • Primary arrest of circulating platelets on collagen involves phosphorylation of Syk, cortactin and focal adhesion kinase (PMID:11988077)
  • Syk/hSlo interaction does not affect the electrical features of BK channels in osteosarcoma cells. (PMID:12009018)
  • Proteasome-dependent regulation of Syk tyrosine kinase levels in basophils (PMID:12209081)
  • actin-linking proteins moesin and ezrin directly interact with Syk in an ITAM-dependent manner (PMID:12387735)
  • mechanism of IL-2-activated SYK regulation of Akt-dependent cell survival in NK cells (PMID:12393431)
  • Our data suggest that reduced Syk expression in breast cancers is associated with distant metastasis and poor prognosis. (PMID:12445683)
  • This protein suppresses the cell motility and nuclear factor kappa B-mediated secretion of urokinase type plasminogen activator by inhibiting the phosphatidylinositol 3’-kinase activity in breast cancer cells. (PMID:12477728)
  • Syk kinase is up-regulated specifically in activated/effector T cells generated by stimulation with anti-CD3 or antigen, and perhaps may serve as both novel indicator for immune activation and target for manipulation of ongoing immune responses. (PMID:12682251)
  • H2O2 induces NF-kappaB activation, not through serine phosphorylation or degradation of IkappaBalpha, but through Syk-mediated tyrosine phosphorylation of IkappaBalpha (PMID:12711606)
  • Nuclear Syk possesses biological activities associated with tumor suppression in mammary epithelial cells. (PMID:12907655)
  • “Syk was first isolated and characterized by Zioncheck et al. and is known to be associated with high affinity IgE receptor…and involved in the signaling pathway after cross-linking of this receptor by antigen in mast cells and basophils.” p. 1685 (PMID:14646171)
  • role in lipopolysaccharide-induced c-Jun NH2-terminal kinase activation in human neutrophils (PMID:14699155)
  • Hypermethylation leads to lose of the syk gene expression in human breast carcinoma and may be correlated to oncogenesis, metastasis of breast carcinoma. (PMID:15059510)
  • The interplay between Syk and ZAP-70 in thymocytes, certain T cells, and B-chronic lymphocytic leukemia cells will modulate the amplitude of antigen-mediated receptor signaling. (PMID:15059847)
  • The expression of the Syk gene may play an important role in suppressing growth and metastasis of breast cancer. (PMID:15062056)
  • A Syk-dependent signaling cascade controls anti-myeloperoxidase IgM ANCA-dependent neutrophil adhesion and apoptosis. (PMID:15163542)
  • data indicate that Syk kinase plays an important role in the translocation of hematopoietic lineage cell-specific protein 1 (HS1) into lipid rafts (PMID:15166239)
  • Methylation of Syk promoter is correlated to oncogenesis and metastasis of gastric carcinoma. (PMID:15188513)
  • Syk acts a negative control element of EGFR signalling. (PMID:15337524)
  • x-ray structure of spleen tyrosine kinase bound to Gleevec (PMID:15507431)
  • C-terminal SH2 domain of p85 PI-3 kinase was sufficient for mediating an interaction with tyrosine-phosphorylated Syk (PMID:15536084)
  • propose that Syk is involved in signaling pathways induced by integrin engagement in airway epithelial cells; Syk-mediated signaling regulates IL-6 and ICAM-1 expression and may be important in the pathophysiology of lung inflammation (PMID:15557085)
  • there is a complex interplay between PKCalpha, Syk, and Src involving physical interaction, phosphorylation, translocation within the cell, and functional activity regulation (PMID:15583006)
  • Results demonstrated that the lysosomal change accompanied with the activation of lysosomal enzymes is a primary step in BCR-crosslinking-mediated apoptosis and Syk is responsible for this step through the fusion of BCR-carrying endosomes to lysosomes. (PMID:15670211)
  • c-Cbl plays a regulatory role in glycoprotein VI (GPVI)/Fc receptor gamma (FcRgamma)-chain-dependent platelet activation through its interaction with Syk (PMID:15701717)
  • These results demonstrate that Syk participates in CXCL12-induced cell polarization, which occurs in concert with cell adhesion mediated by beta1 integrin. (PMID:15707999)
  • The SYK is present in the majority of mediastinal B cell lymphomas. (PMID:15744341)
  • Novel role for Syk in the maintenance of a bipolar phenotype by regulating lamellipodium formation, which is a critical prerequisite for site-directed migration of leukocytes. (PMID:15754322)
  • HS1 Tyr phosphorylation catalyzed by Syk and Lyn plays a crucial role in the translocation of the protein to the membrane and is involved in the cytoskeleton rearrangement triggered by thrombin in human platelets (PMID:15795233)
  • Syk-transfected cells formed significantly fewer metastatic tumor lesions than control cells. Syk is novel regulator of metastatic behavior of melanoma cells. (PMID:15955106)
  • Dectin-1 activates Syk tyrosine kinase in macrophages for reactive oxygen production (PMID:15956283)
  • Data reveal a complex process controlling the association and catalytic activity of protein tyrosine kinases syk and lyn with the human erythrocyte membrane. (PMID:16085052)
  • CD21 activation triggered Cbl tyrosine phosphorylation, which interacts with SH2 domains of p85 subunit, SH2 domains of Crk-L and with tyrosine phosphorylated Syk kinase. CD21 activation triggers dissociation of Cbl-Vav complex. (PMID:16289966)
  • Shiga toxin (Stx)was found to activate Syk and induce rapid tyrosine phosphorylation of several proteins, one protein being clathrin heavy chain. (PMID:16371508)
  • Syk plays an indispensable role in complement-mediated phagocytosis by regulating both actin dynamics and the RhoA activation pathway, and these functions of Syk lead to phagosome formation and pathogen engulfment. (PMID:16449524)
  • the cross-talk between Syk and Lck regulates hypoxia/reoxygenation-induced breast cancer progression (PMID:16474166)
  • Taken together, these findings indicate that C3bi targets the phagocytic cargo, and engagement or diversion of the Syk route determines the phagocyte response. (PMID:16501050)
  • Overview discusses the role of Syk that is essential to complement-mediated phagocytosis. (PMID:16754322)
  • identify novel regulatory mechanisms of leukocyte rolling on selectins with a strong dependency on lipid raft integrity and Syk activity (PMID:16849645)

Cross-species orthologs

3 orthologs

OrganismSymbolGene ID
danio_reriosykENSDARG00000008186
mus_musculusSykENSMUSG00000021457
rattus_norvegicusSykENSRNOG00000012160

Paralogs (32): FGR (ENSG00000000938), MATK (ENSG00000007264), BTK (ENSG00000010671), FYN (ENSG00000010810), STYK1 (ENSG00000060140), TNK2 (ENSG00000061938), TXK (ENSG00000074966), JAK2 (ENSG00000096968), ABL1 (ENSG00000097007), PTK6 (ENSG00000101213), HCK (ENSG00000101336), BMX (ENSG00000102010), CSK (ENSG00000103653), TYK2 (ENSG00000105397), JAK3 (ENSG00000105639), FRK (ENSG00000111816), ITK (ENSG00000113263), ZAP70 (ENSG00000115085), PTK2B (ENSG00000120899), SRMS (ENSG00000125508), TEC (ENSG00000135605), BLK (ENSG00000136573), ABL2 (ENSG00000143322), FER (ENSG00000151422), JAK1 (ENSG00000162434), PTK2 (ENSG00000169398), TNK1 (ENSG00000174292), YES1 (ENSG00000176105), FES (ENSG00000182511), LCK (ENSG00000182866), SRC (ENSG00000197122), LYN (ENSG00000254087)

Protein

Protein identifiers

Tyrosine-protein kinase SYKP43405 (reviewed: P43405)

Alternative names: Spleen tyrosine kinase, p72-Syk

All UniProt accessions (1): P43405

UniProt curated annotations — full annotation on UniProt →

Function. Non-receptor tyrosine kinase which mediates signal transduction downstream of a variety of transmembrane receptors including classical immunoreceptors like the B-cell receptor (BCR). Regulates several biological processes including innate and adaptive immunity, cell adhesion, osteoclast maturation, platelet activation and vascular development. Assembles into signaling complexes with activated receptors at the plasma membrane via interaction between its SH2 domains and the receptor tyrosine-phosphorylated ITAM domains. The association with the receptor can also be indirect and mediated by adapter proteins containing ITAM or partial hemITAM domains. The phosphorylation of the ITAM domains is generally mediated by SRC subfamily kinases upon engagement of the receptor. More rarely signal transduction via SYK could be ITAM-independent. Direct downstream effectors phosphorylated by SYK include DEPTOR, VAV1, PLCG1, PI-3-kinase, LCP2 and BLNK. Initially identified as essential in B-cell receptor (BCR) signaling, it is necessary for the maturation of B-cells most probably at the pro-B to pre-B transition. Activated upon BCR engagement, it phosphorylates and activates BLNK an adapter linking the activated BCR to downstream signaling adapters and effectors. It also phosphorylates and activates PLCG1 and the PKC signaling pathway. It also phosphorylates BTK and regulates its activity in B-cell antigen receptor (BCR)-coupled signaling. In addition to its function downstream of BCR also plays a role in T-cell receptor signaling. Also plays a crucial role in the innate immune response to fungal, bacterial and viral pathogens. It is for instance activated by the membrane lectin CLEC7A. Upon stimulation by fungal proteins, CLEC7A together with SYK activates immune cells inducing the production of ROS. Also activates the inflammasome and NF-kappa-B-mediated transcription of chemokines and cytokines in presence of pathogens. Regulates neutrophil degranulation and phagocytosis through activation of the MAPK signaling cascade. Required for the stimulation of neutrophil phagocytosis by IL15. Also mediates the activation of dendritic cells by cell necrosis stimuli. Also involved in mast cells activation. Involved in interleukin-3/IL3-mediated signaling pathway in basophils. Also functions downstream of receptors mediating cell adhesion. Relays for instance, integrin-mediated neutrophils and macrophages activation and P-selectin receptor/SELPG-mediated recruitment of leukocytes to inflammatory loci. Also plays a role in non-immune processes. It is for instance involved in vascular development where it may regulate blood and lymphatic vascular separation. It is also required for osteoclast development and function. Functions in the activation of platelets by collagen, mediating PLCG2 phosphorylation and activation. May be coupled to the collagen receptor by the ITAM domain-containing FCER1G. Also activated by the membrane lectin CLEC1B that is required for activation of platelets by PDPN/podoplanin. Involved in platelet adhesion being activated by ITGB3 engaged by fibrinogen. Together with CEACAM20, enhances production of the cytokine CXCL8/IL-8 via the NFKB pathway and may thus have a role in the intestinal immune response.

Subunit / interactions. Interacts with LYN; phosphorylates SYK. Interacts with RHOH (phosphorylated); regulates mast cells activation. Interacts with NFAM1 (phosphorylated); probably involved in BCR signaling. Interacts with VAV1 (via SH2 domain); phosphorylates VAV1 upon BCR activation. Interacts with GAB2 (phosphorylated); probably involved in IgE Fc receptor signaling. Interacts (via its SH2 domains) with CD79A (via its phosphorylated ITAM domain); the interaction stimulates SYK autophosphorylation and activation. Interacts with FCRL3. Interacts (via SH2 domains) with FCER1G (via ITAM domain); activates SYK and mediates neutrophils and macrophages integrin-mediated activation. Interaction with FCER1G in basophils triggers IL3-induced IL4 production. Interacts with ITGB2 and FGR; involved in ITGB2 downstream signaling. Interacts with ITGB3; upon activation by ITGB3 promotes platelet adhesion. Interacts (via SH2 domains) with TYROBP (via ITAM domain); involved in neutrophils and macrophages integrin-mediated activation. Interacts with MSN and SELPLG; mediates the selectin-dependent activation of SYK by SELPLG. Interacts with BLNK (via SH2 domain). Interacts (via the second SH2 domain) with USP25 (via C-terminus); phosphorylates USP25 and regulates USP25 intracellular levels. Interacts (via SH2 domains) with CLEC1B (dimer). Interacts with CLEC7A; participates in leukocyte activation in presence of fungal pathogens. Interacts (phosphorylated) with SLA; may regulate SYK through CBL recruitment. Interacts with YWHAG; attenuates BCR-induced membrane translocation and activation of SYK. Interacts (via SH2 domains) with GCSAM; the interaction increases after B-cell receptor stimulation, resulting in enhanced SYK autophosphorylation and activity. Interacts with TNS2; leading to the phosphorylation of SYK. Interacts with FLNA (via filamin repeat 5); docks SYK to the plasma membrane. Interacts with CEACAM1; lipopolysaccharide activated neutrophils induce phosphorylation of SYK resulting in the formation of a complex including TLR4 and the phosphorylated form of SYK and CEACAM1, which in turn, recruits PTPN6 that dephosphorylates SYK, reducing the production of reactive oxygen species (ROS) and lysosome disruption, leading to a reduction of the inflammasome activity. Interacts (via SH2 domains) with CEACAM20 (phosphorylated form); the interaction further enhances CEACAM20 phosphorylation. Interacts with IL15RA. Interacts with MPL/TPOR; this interaction negatively regulates THPO-mediated ERK1/2 signaling. (Microbial infection) Interacts with Epstein-Barr virus LMP2A.

Subcellular location. Cell membrane. Cytoplasm. Cytosol.

Tissue specificity. Widely expressed in hematopoietic cells (at protein level). Expressed in neutrophils (at protein level). Within the B-cell compartment, expressed from pro- and pre-B cells to plasma cells.

Post-translational modifications. Ubiquitinated by CBLB after BCR activation; which promotes proteasomal degradation. Autophosphorylated. Phosphorylated on tyrosine residues by LYN following receptors engagement. Phosphorylation on Tyr-323 creates a binding site for CBL, an adapter protein that serves as a negative regulator of BCR-stimulated calcium ion signaling. Phosphorylation at Tyr-348 creates a binding site for VAV1. Phosphorylation on Tyr-348 and Tyr-352 enhances the phosphorylation and activation of phospholipase C-gamma and the early phase of calcium ion mobilization via a phosphoinositide 3-kinase-independent pathway. Phosphorylated on tyrosine residues in response to IL15. Phosphorylation on Ser-297 is very common, it peaks 5 minutes after BCR stimulation, and creates a binding site for YWHAG. Phosphorylation at Tyr-630 creates a binding site for BLNK. Dephosphorylated by PTPN6.

Disease relevance. Immunodeficiency 82 with systemic inflammation (IMD82) [MIM:619381] An autosomal dominant immunologic disorder with onset in early childhood. It is characterized by recurrent infections with various organisms, and multi-organ inflammation that manifests as colitis, hepatitis, arthritis and dermatitis. Patients have a propensity for the development of lymphoma, usually in adulthood. Disease severity is variable. The disease is caused by variants affecting the gene represented in this entry.

Activity regulation. Autoinhibited. Intramolecular binding of the interdomains A and B (also called linker region) to parts of the catalytic domain keep the catalytic center in an inactive conformation. The phosphorylation of the interdomains or the binding of the SH2 domains with dually phosphorylated ITAM domains on transmembrane proteins disrupt those intramolecular interactions allowing the kinase domain to adopt an active conformation. The phosphorylation of SYK and of the ITAM domains which is responsible for SYK activation is essentially mediated by SRC subfamily kinases, like LYN, upon transmembrane receptors engagement. May also be negatively regulated by PTPN6 through dephosphorylation. Downstream signaling adapters and intermediates like BLNK or RHOH may mediate positive and/or negative feedback regulation. Negatively regulated by CBL and CBLB through ubiquitination and probable degradation. Phosphorylates SH3BP2 which in turn may regulate SYK through LYN.

Domain organisation. The SH2 domains mediate the interaction of SYK with the phosphorylated ITAM domains of transmembrane proteins. Some proteins like CLEC1B have a partial ITAM domain (also called hemITAM) containing a single YxxL motif. The interaction with SYK requires CLEC1B homodimerization.

Similarity. Belongs to the protein kinase superfamily. Tyr protein kinase family. SYK/ZAP-70 subfamily.

Isoforms (2)

UniProt IDNamesCanonical?
P43405-1Longyes
P43405-2Short

RefSeq proteins (4): NP_001128524, NP_001167638, NP_001167639, NP_003168* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000719Prot_kinase_domDomain
IPR000980SH2Domain
IPR001245Ser-Thr/Tyr_kinase_cat_domDomain
IPR008266Tyr_kinase_ASActive_site
IPR011009Kinase-like_dom_sfHomologous_superfamily
IPR012234Tyr_kinase_non-rcpt_SYK/ZAP70Family
IPR017441Protein_kinase_ATP_BSBinding_site
IPR020635Tyr_kinase_cat_domDomain
IPR023420Kinase_SYK/ZAP-70_inter-SH2_sfHomologous_superfamily
IPR035838SYK/ZAP-70_N_SH2Domain
IPR036860SH2_dom_sfHomologous_superfamily
IPR050198Non-receptor_tyrosine_kinasesFamily

Pfam: PF00017, PF07714

Enzyme classification (BRENDA):

  • EC 2.7.10.2 — non-specific protein-tyrosine kinase (BRENDA: 41 organisms, 396 substrates, 479 inhibitors, 43 Km, 32 kcat entries)
  • EC 2.7.12.1 — dual-specificity kinase (BRENDA: 51 organisms, 125 substrates, 188 inhibitors, 14 Km, 10 kcat entries)

Substrate kinetics (BRENDA)

8 substrates with measured Km, best-characterized 8. Km ranges are aggregated across organisms/conditions.

SubstrateKm (mM)Measurements
ATP0.014–17.6412
[KDSRC KINASE]-L-TYROSINE0.0057–0.2412
POLY(GLU4-TYR)0.018–0.65910
ATP0.019–0.11857
HISTONE H10.006–0.0125
EEEEYIQ[DP]-8-HYDROXY-5-(N,N-DIMETHYLSULFONAMIDO0.0571
S1 PEPTIDE0.0371
EEEEY0

Catalyzed reactions (Rhea), 1 shown:

  • L-tyrosyl-[protein] + ATP = O-phospho-L-tyrosyl-[protein] + ADP + H(+) (RHEA:10596)

UniProt features (106 total): modified residue 31, strand 28, helix 25, sequence variant 6, domain 3, turn 2, region of interest 2, mutagenesis site 2, sequence conflict 2, binding site 2, chain 1, splice variant 1, active site 1

Structure

Experimental structures (PDB)

93 structures, top 30 by resolution.

PDBMethodResolution (Å)
4YJRX-RAY DIFFRACTION1.32
4YJQX-RAY DIFFRACTION1.34
4FYOX-RAY DIFFRACTION1.4
5LMAX-RAY DIFFRACTION1.43
3BUWX-RAY DIFFRACTION1.45
6ZCSX-RAY DIFFRACTION1.47
5TIUX-RAY DIFFRACTION1.49
8XQ1X-RAY DIFFRACTION1.5
8BI2X-RAY DIFFRACTION1.51
4YJTX-RAY DIFFRACTION1.52
1XBBX-RAY DIFFRACTION1.57
4RX8X-RAY DIFFRACTION1.59
4PX6X-RAY DIFFRACTION1.6
4YJOX-RAY DIFFRACTION1.6
8RRQX-RAY DIFFRACTION1.6
6HM7X-RAY DIFFRACTION1.64
4YJVX-RAY DIFFRACTION1.65
6ZCXX-RAY DIFFRACTION1.66
4YJUX-RAY DIFFRACTION1.67
4I0TX-RAY DIFFRACTION1.7
5CXZX-RAY DIFFRACTION1.7
6ZCRX-RAY DIFFRACTION1.73
6ZCUX-RAY DIFFRACTION1.73
4FZ7X-RAY DIFFRACTION1.75
4RX9X-RAY DIFFRACTION1.75
8RRZX-RAY DIFFRACTION1.75
4XG7X-RAY DIFFRACTION1.76
5CY3X-RAY DIFFRACTION1.76
5TT7X-RAY DIFFRACTION1.77
4FL1X-RAY DIFFRACTION1.79

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-P43405-F184.520.64

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Catalytic / active sites (1): 494 (proton acceptor)

Ligand- & substrate-binding residues (2): 377–385; 402

Post-translational modifications (31): 44, 47, 131, 202, 256, 295, 296, 297, 316, 317, 319, 323, 345, 348, 350, 352, 364, 379, 384, 484 …

Mutagenesis-validated functional residues (2):

PositionPhenotype
297abolishes ywhag binding.
630loss of interaction with blnk.

Function

Pathways and Gene Ontology

Reactome pathways

47 pathways

IDPathway
R-HSA-114604GPVI-mediated activation cascade
R-HSA-2029481FCGR activation
R-HSA-2029482Regulation of actin dynamics for phagocytic cup formation
R-HSA-2029485Role of phospholipids in phagocytosis
R-HSA-2424491DAP12 signaling
R-HSA-2454202Fc epsilon receptor (FCERI) signaling
R-HSA-2730905Role of LAT2/NTAL/LAB on calcium mobilization
R-HSA-2871796FCERI mediated MAPK activation
R-HSA-2871809FCERI mediated Ca+2 mobilization
R-HSA-354192Integrin signaling
R-HSA-5607764CLEC7A (Dectin-1) signaling
R-HSA-5621480Dectin-2 family
R-HSA-9020558Interleukin-2 signaling
R-HSA-912631Regulation of signaling by CBL
R-HSA-9664323FCGR3A-mediated IL10 synthesis
R-HSA-9664422FCGR3A-mediated phagocytosis
R-HSA-9674555Signaling by CSF3 (G-CSF)
R-HSA-9679191Potential therapeutics for SARS
R-HSA-9705462Inactivation of CSF3 (G-CSF) signaling
R-HSA-9706374FLT3 signaling through SRC family kinases
R-HSA-983695Antigen activates B Cell Receptor (BCR) leading to generation of second messengers
R-HSA-109582Hemostasis
R-HSA-1280215Cytokine Signaling in Immune system
R-HSA-1280218Adaptive Immune System
R-HSA-162582Signal Transduction
R-HSA-1643685Disease
R-HSA-168249Innate Immune System
R-HSA-168256Immune System
R-HSA-2029480Fcgamma receptor (FCGR) dependent phagocytosis
R-HSA-2172127DAP12 interactions

MSigDB gene sets: 0 (showing top):

GO Biological Process (91): angiogenesis (GO:0001525), cell activation (GO:0001775), lymph vessel development (GO:0001945), positive regulation of receptor internalization (GO:0002092), stimulatory C-type lectin receptor signaling pathway (GO:0002223), adaptive immune response (GO:0002250), macrophage activation involved in immune response (GO:0002281), neutrophil activation involved in immune response (GO:0002283), leukocyte activation involved in immune response (GO:0002366), serotonin secretion by platelet (GO:0002554), cell surface pattern recognition receptor signaling pathway (GO:0002752), negative regulation of inflammatory response to antigenic stimulus (GO:0002862), protein phosphorylation (GO:0006468), protein import into nucleus (GO:0006606), leukocyte cell-cell adhesion (GO:0007159), integrin-mediated signaling pathway (GO:0007229), animal organ morphogenesis (GO:0009887), regulation of platelet activation (GO:0010543), regulation of tumor necrosis factor-mediated signaling pathway (GO:0010803), peptidyl-tyrosine phosphorylation (GO:0018108), leukotriene biosynthetic process (GO:0019370), calcium-mediated signaling (GO:0019722), platelet activation (GO:0030168), B cell differentiation (GO:0030183), neutrophil chemotaxis (GO:0030593), positive regulation of protein-containing complex assembly (GO:0031334), receptor internalization (GO:0031623), positive regulation of type I interferon production (GO:0032481), positive regulation of granulocyte macrophage colony-stimulating factor production (GO:0032725), positive regulation of interleukin-10 production (GO:0032733), positive regulation of interleukin-12 production (GO:0032735), positive regulation of interleukin-3 production (GO:0032752), positive regulation of interleukin-4 production (GO:0032753), positive regulation of interleukin-6 production (GO:0032755), positive regulation of interleukin-8 production (GO:0032757), positive regulation of tumor necrosis factor production (GO:0032760), positive regulation of mast cell cytokine production (GO:0032765), regulation of superoxide anion generation (GO:0032928), positive regulation of superoxide anion generation (GO:0032930), positive regulation of cell adhesion mediated by integrin (GO:0033630)

GO Molecular Function (19): phosphotyrosine residue binding (GO:0001784), protein kinase activity (GO:0004672), protein serine/threonine kinase activity (GO:0004674), protein tyrosine kinase activity (GO:0004713), non-membrane spanning protein tyrosine kinase activity (GO:0004715), signaling receptor binding (GO:0005102), integrin binding (GO:0005178), ATP binding (GO:0005524), interleukin-15 receptor binding (GO:0016170), kinase activity (GO:0016301), protein kinase binding (GO:0019901), phosphatase binding (GO:0019902), Toll-like receptor binding (GO:0035325), SH2 domain binding (GO:0042169), phospholipase binding (GO:0043274), scaffold protein binding (GO:0097110), nucleotide binding (GO:0000166), protein binding (GO:0005515), transferase activity (GO:0016740)

GO Cellular Component (9): nucleus (GO:0005634), cytoplasm (GO:0005737), cytosol (GO:0005829), plasma membrane (GO:0005886), B cell receptor complex (GO:0019815), early phagosome (GO:0032009), protein-containing complex (GO:0032991), T cell receptor complex (GO:0042101), membrane (GO:0016020)

Reactome top-level categories

Rollup of top-16 pathways:

CategoryPathways
Fcgamma receptor (FCGR) dependent phagocytosis3
Fc epsilon receptor (FCERI) signaling3
C-type lectin receptors (CLRs)2
Platelet activation, signaling and aggregation1
DAP12 interactions1
Innate Immune System1
Signal Transduction1
Platelet Aggregation (Plug Formation)1
Interleukin-2 family signaling1
Interleukin-3, Interleukin-5 and GM-CSF signaling1
Anti-inflammatory response favouring Leishmania parasite infection1
Leishmania phagocytosis1
Cytokine Signaling in Immune system1
SARS-CoV Infections1
Signaling by CSF3 (G-CSF)1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
immune response4
cellular anatomical structure3
innate immune response activating cell surface receptor signaling pathway2
myeloid cell activation involved in immune response2
protein kinase activity2
protein binding2
signaling receptor binding2
enzyme binding2
plasma membrane signaling receptor complex2
blood vessel morphogenesis1
anatomical structure formation involved in morphogenesis1
cellular process1
multicellular organismal process1
vasculature development1
anatomical structure development1
regulation of receptor internalization1
receptor internalization1
positive regulation of receptor-mediated endocytosis1
cellular response to lectin1
leukocyte activation involved in immune response1
macrophage activation1
neutrophil activation1
cell activation involved in immune response1
leukocyte activation1
serotonin secretion involved in inflammatory response1
platelet degranulation1
establishment of localization in cell1
exocytic process1
pattern recognition receptor signaling pathway1
inflammatory response to antigenic stimulus1
regulation of inflammatory response to antigenic stimulus1
negative regulation of inflammatory response1
negative regulation of immune response1
phosphorylation1
protein modification process1
intracellular protein transport1
protein localization to nucleus1
import into nucleus1
establishment of protein localization to organelle1
cell-cell adhesion1

Protein interactions and networks

STRING

4648 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
SYKLCP2Q13094998
SYKBLNKQ8WV28998
SYKFCER1GP30273998
SYKVAV1P15498998
SYKTYROBPO43914997
SYKCARD9Q9H257997
SYKCLEC7AQ9BXN2995
SYKCD79BP40259993
SYKCD79AP11912992
SYKPLCG2P16885987
SYKBTKQ06187987
SYKLYNP07948986
SYKSRCP12931976
SYKVAV3Q9UKW4969
SYKCD247P20963967

IntAct

182 interactions, top by confidence:

ABTypeScore
SYKSTAT3psi-mi:“MI:0915”(physical association)0.870
STAT3SYKpsi-mi:“MI:0915”(physical association)0.870
PYCARDCASP1psi-mi:“MI:0914”(association)0.860
SYKUSP25psi-mi:“MI:0915”(physical association)0.830
USP25SYKpsi-mi:“MI:0915”(physical association)0.830
SH3BP2VAV1psi-mi:“MI:0914”(association)0.790
LCKSYKpsi-mi:“MI:0915”(physical association)0.750
LCKSYKpsi-mi:“MI:0914”(association)0.750
SYKFLT3psi-mi:“MI:0407”(direct interaction)0.740
SYKCBLpsi-mi:“MI:0217”(phosphorylation reaction)0.740
CBLSYKpsi-mi:“MI:0217”(phosphorylation reaction)0.740
CBLSYKpsi-mi:“MI:0407”(direct interaction)0.740

BioGRID (342): IL17RA (Affinity Capture-Western), TRAF6 (Affinity Capture-Western), TRAF3IP2 (Affinity Capture-Western), SYK (Affinity Capture-Western), SYK (Two-hybrid), SH2D2A (Two-hybrid), USP25 (Two-hybrid), SYK (Affinity Capture-Western), SYK (Affinity Capture-Western), FAM46A (Two-hybrid), SYK (Affinity Capture-Luminescence), SYK (Two-hybrid), SYK (Two-hybrid), HCLS1 (Co-localization), CTTN (Co-localization)

ESM2 similar proteins: A7A1P0, A8WZ92, B4IT27, B5VNQ3, B6A7Q3, C0RW22, F1N9Y5, G5EC24, H2KZW3, O01798, O12990, O19064, O35495, O60674, O94921, P08458, P22517, P23458, P23561, P26818, P27466, P32865, P34635, P34892, P35626, P42159, P42687, P43405, P48025, P51813, P52332, P53356, P83104, Q00537, Q00655, Q09639, Q10056, Q12469, Q17833, Q24145

Diamond homologs: A0JNB0, A1Y2K1, F1N9Y5, G5EBZ8, G5ECJ6, O35346, O45539, O54967, P00519, P00520, P00521, P00522, P00523, P00524, P00525, P00530, P00533, P00534, P00535, P00541, P00542, P03949, P05480, P06239, P06240, P06241, P08103, P08630, P08631, P09760, P09769, P10447, P11273, P12931, P13115, P13116, P13388, P14084, P14085, P14234

SIGNOR signaling

91 interactions.

AEffectBMechanism
SYKup-regulatesVAV1phosphorylation
VAV1up-regulatesSYKbinding
SYKdown-regulatesSNCAphosphorylation
SYKdown-regulatesMAPTphosphorylation
CHEK1down-regulatesSYKphosphorylation
SYKup-regulatesIKZF1phosphorylation
R406down-regulatesSYK“chemical inhibition”
“Fostamatinib disodium”down-regulatesSYK“chemical inhibition”
SYK“up-regulates activity”IL15RAphosphorylation
SYK“down-regulates activity”LCKphosphorylation
SYK“up-regulates activity”MAP4K1phosphorylation
SYK“up-regulates activity”PLCG1phosphorylation
SYK“up-regulates activity”PRKCAphosphorylation
SYK“up-regulates activity”SYKphosphorylation
SYK“up-regulates activity”TUBA4Aphosphorylation
SYK“up-regulates activity”BTKphosphorylation
2-[[7-(3,4-dimethoxyphenyl)-5-imidazo[1,2-c]pyrimidinyl]amino]-3-pyridinecarboxamide“down-regulates activity”SYK“chemical inhibition”
BCR-Mk“up-regulates activity”SYKbinding
BCR-Ml“up-regulates activity”SYKbinding
BCR-Dk“up-regulates activity”SYKbinding
BCR-Dl“up-regulates activity”SYKbinding

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 65 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
Regulation of KIT signaling777.9×2e-10
Signaling by phosphorylated juxtamembrane, extracellular and kinase domain KIT mutants876.9×5e-12
PI3K events in ERBB2 signaling674.6×5e-09
GAB1 signalosome670.5×6e-09
Constitutive Signaling by EGFRvIII566.1×2e-07
Regulation of signaling by CBL764.4×6e-10
Signaling by ALK663.4×1e-08
Signal regulatory protein family interactions562.2×3e-07

GO biological processes:

GO termPartnersFoldFDR
Fc-gamma receptor signaling pathway involved in phagocytosis668.0×4e-08
stimulatory C-type lectin receptor signaling pathway559.1×1e-06
Fc-epsilon receptor signaling pathway559.1×1e-06
T cell costimulation954.4×1e-11
peptidyl-tyrosine phosphorylation854.4×2e-10
leukocyte migration550.3×3e-06
negative regulation of inflammatory response to antigenic stimulus548.5×3e-06
epidermal growth factor receptor signaling pathway1144.0×8e-13

Disease & clinical

Cancer significance

Clinical variants and AI predictions

ClinVar

115 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic1
Likely pathogenic2
Uncertain significance47
Likely benign11
Benign28

Top pathogenic / likely-pathogenic (3)

Variant IDHGVSClassification
989389NM_003177.7(SYK):c.1649C>A (p.Ser550Tyr)Pathogenic
989237NM_003177.7(SYK):c.1350G>A (p.Met450Ile)Likely pathogenic
989387NM_003177.7(SYK):c.1024C>A (p.Pro342Thr)Likely pathogenic

SpliceAI

2348 predictions. Top by Δscore:

VariantEffectΔscore
9:90801891:CAGGT:Cdonor_loss1.0000
9:90801892:AG:Adonor_loss1.0000
9:90801893:GG:Gdonor_loss1.0000
9:90844271:G:GTdonor_gain1.0000
9:90844272:A:Tdonor_gain1.0000
9:90844285:GGAA:Gdonor_gain1.0000
9:90844286:G:Tdonor_gain1.0000
9:90844286:GAA:Gdonor_gain1.0000
9:90845586:A:Tdonor_gain1.0000
9:90845590:TTCCT:Tdonor_gain1.0000
9:90845591:TCCT:Tdonor_gain1.0000
9:90845593:CT:Cdonor_gain1.0000
9:90845593:CTG:Cdonor_loss1.0000
9:90845594:TG:Tdonor_loss1.0000
9:90845595:G:GGdonor_gain1.0000
9:90845596:T:Gdonor_loss1.0000
9:90845597:GAGT:Gdonor_loss1.0000
9:90845598:AGTA:Adonor_loss1.0000
9:90862200:TTCTA:Tacceptor_loss1.0000
9:90862201:TCTA:Tacceptor_loss1.0000
9:90862202:CTA:Cacceptor_loss1.0000
9:90862203:TA:Tacceptor_loss1.0000
9:90862204:A:AGacceptor_gain1.0000
9:90862204:AG:Aacceptor_gain1.0000
9:90862205:G:GAacceptor_gain1.0000
9:90862205:GG:Gacceptor_gain1.0000
9:90862299:G:GTdonor_gain1.0000
9:90862299:G:Tdonor_gain1.0000
9:90862343:AGG:Adonor_loss1.0000
9:90862344:GGTAC:Gdonor_loss1.0000

AlphaMissense

4178 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
9:90843951:G:TG18V1.000
9:90843971:G:CA25P1.000
9:90844304:T:AW136R1.000
9:90844304:T:CW136R1.000
9:90845452:G:CA146P1.000
9:90845477:T:CL154P1.000
9:90845486:T:CL157P1.000
9:90845518:T:AW168R1.000
9:90845518:T:CW168R1.000
9:90845585:G:TG190V1.000
9:90845590:T:CF192L1.000
9:90845592:C:AF192L1.000
9:90845592:C:GF192L1.000
9:90845594:T:CL193P1.000
9:90862241:T:CL205P1.000
9:90862327:T:CF234L1.000
9:90862329:C:AF234L1.000
9:90862329:C:GF234L1.000
9:90864590:T:CL240P1.000
9:90864623:T:CL251S1.000
9:90874777:T:CL370P1.000
9:90874800:G:CG378R1.000
9:90874801:G:AG378D1.000
9:90874806:G:CG380R1.000
9:90874806:G:TG380C1.000
9:90874807:G:AG380D1.000
9:90874807:G:TG380V1.000
9:90874812:T:AF382I1.000
9:90874812:T:CF382L1.000
9:90874812:T:GF382V1.000

dbSNP variants (sampled 300 via entrez): RS1000004238 (9:90810003 G>A), RS1000020787 (9:90869701 C>G), RS1000027779 (9:90851192 A>G,T), RS1000072503 (9:90845619 C>T), RS1000074552 (9:90870091 ACT>A), RS1000092663 (9:90830928 C>T), RS1000112503 (9:90810988 T>C), RS1000183112 (9:90842460 CAT>C), RS1000194712 (9:90824831 C>G), RS1000236176 (9:90867349 G>A), RS1000256617 (9:90816430 C>T), RS1000267256 (9:90867611 A>G), RS1000286773 (9:90858150 G>A), RS1000314178 (9:90822772 G>A,T), RS1000315248 (9:90864121 C>T)

Disease associations

OMIM: gene MIM:600085 | disease phenotypes: MIM:619381, MIM:300755

GenCC curated gene-disease

DiseaseClassificationInheritance
immunodeficiency 82 with systemic inflammationStrongAutosomal dominant

Mondo (5): immunodeficiency 82 with systemic inflammation (MONDO:0030308), long QT syndrome (MONDO:0002442), colitis (MONDO:0005292), arthritic joint disease (MONDO:0005578), immunodeficiency disease (MONDO:0021094)

Orphanet (1): Immunodeficiency-systemic inflammation-lymphoma predisposition syndrome (Orphanet:695807)

HPO phenotypes

51 total (30 of 51 shown, HPO-id order):

HPOTerm
HP:0000006Autosomal dominant inheritance
HP:0000155Oral ulcer
HP:0000403Recurrent otitis media
HP:0000988Skin rash
HP:0001369Arthritis
HP:0001386Joint swelling
HP:0001581Recurrent skin infections
HP:0001744Splenomegaly
HP:0001824Weight loss
HP:0001903Anemia
HP:0001954Recurrent fever
HP:0002013Vomiting
HP:0002014Diarrhea
HP:0002027Abdominal pain
HP:0002039Anorexia
HP:0002041Intractable diarrhea
HP:0002090Pneumonia
HP:0002110Bronchiectasis
HP:0002583Colitis
HP:0002588Duodenal ulcer
HP:0002716Lymphadenopathy
HP:0002719Recurrent infections
HP:0002722Recurrent abscess formation
HP:0002729Follicular hyperplasia
HP:0002749Osteomalacia
HP:0002754Osteomyelitis
HP:0002850Decreased circulating total IgM
HP:0003073Hypoalbuminemia
HP:0003228Hypernatremia
HP:0003460Decreased circulating total IgA

GWAS associations

17 associations (top):

StudyTraitp-value
GCST000993_1Vascular dementia7.000000e-11
GCST001198_36Multiple sclerosis9.000000e-07
GCST001461_4Type 2 diabetes5.000000e-06
GCST004373_11Atrial fibrillation6.000000e-06
GCST004616_201Platelet distribution width2.000000e-11
GCST005025_19Anti-saccade response9.000000e-06
GCST007124_5Multiple sclerosis and HDL levels (pleiotropy)1.000000e-06
GCST007600_13Alzheimer’s disease5.000000e-06
GCST008951_2Chromosomal aberration frequency (total)2.000000e-07
GCST009209_8Frontal pole volume6.000000e-07
GCST009391_1419Metabolite levels1.000000e-06
GCST90002393_307Monocyte count2.000000e-11
GCST90002395_54Mean platelet volume6.000000e-09
GCST90002397_686Mean spheric corpuscular volume1.000000e-12
GCST90002400_379Plateletcrit9.000000e-11
GCST90002401_485Platelet distribution width2.000000e-25
GCST90002402_64Platelet count9.000000e-18

EFO canonical traits (8, from GWAS)

EFO IDTrait name
EFO:0007984platelet component distribution width
EFO:0006874antisaccade response measurement
EFO:0004612high density lipoprotein cholesterol measurement
EFO:0009860chromosomal aberration frequency
EFO:0010452adenosine diphosphate measurement
EFO:0005091monocyte count
EFO:0007985platelet crit
EFO:0004309platelet count

MeSH disease descriptors (3)

DescriptorNameTree numbers
D001168ArthritisC05.550.114
D003092ColitisC06.405.205.265; C06.405.469.158.188
D008133Long QT SyndromeC14.280.067.565; C14.280.123.625; C16.131.240.400.715; C23.550.073.547

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (1): CHEMBL2599 (SINGLE PROTEIN)

Molecules with ChEMBL bioactivity

54 molecules (phase ≥1), by development phase (incl. off-target/promiscuous compounds). Patent mentions across the top 20 by phase: 389,119 (via chembl_molecule»patent_compound — counts attach to the compound, not the gene–compound relationship, so off-target/promiscuous molecules can dominate).

MoleculeNamePhasePatents
CHEMBL1287853FEDRATINIB43,554
CHEMBL180022NERATINIB49,404
CHEMBL1834657INFIGRATINIB PHOSPHATE4285
CHEMBL1852688INFIGRATINIB42,209
CHEMBL1983268ENTRECTINIB43,510
CHEMBL2103830FOSTAMATINIB43,841
CHEMBL2403108CERITINIB48,551
CHEMBL288441BOSUTINIB412,255
CHEMBL3301622GILTERITINIB42,395
CHEMBL3989516FOSTAMATINIB DISODIUM462
CHEMBL477772PAZOPANIB415,540
CHEMBL5416410DASATINIB4655
CHEMBL553ERLOTINIB4108,300
CHEMBL601719CRIZOTINIB414,403
CHEMBL608533MIDOSTAURIN47,259
CHEMBL941IMATINIB4111,611
CHEMBL3265032ENTOSPLETINIB31,628
CHEMBL491473CEDIRANIB39,098
CHEMBL50QUERCETIN374,559
CHEMBL603469LESTAURTINIB3
CHEMBL1230609FORETINIB2
CHEMBL151LUTEOLIN2
CHEMBL1738757REBASTINIB2
CHEMBL1922094APITOLISIB2
CHEMBL1967878CENISERTIB2
CHEMBL1976040ADAVOSERTIB2
CHEMBL1980297ILORASERTIB2
CHEMBL2170582R-3432
CHEMBL31574FISETIN2
CHEMBL3681949TOP-12882

Clinical evidence (CIViC)

Drug × variant × indication: 1 predictive associations from 1 curated evidence items.

VariantTherapyIndicationEffectLevelCIViC
SYK OVEREXPRESSIONPaclitaxelOvarian CancerResistanceCIViC DEID752

PharmGKB: 1 entry (VIP=true, CPIC=false)

GtoPdb / IUPHAR curated pharmacology

(IUPHAR/BPS Guide to Pharmacology — expert-curated)

Target class: enzyme — Syk family

Most potent curated ligand interactions (20 total), top 20:

LigandActionAffinityParameter
TAS05567Inhibition9.43pIC50
sovleplenibInhibition9.0pIC50
P505-15Inhibition9.0pIC50
compound 23 [PMID: 17600705]Inhibition8.4pIC50
GSK143Inhibition8.12pIC50
entospletinibInhibition8.11pIC50
mivavotinibInhibition8.01pEC50
gusacitinibInhibition8.0pIC50
lanraplenibInhibition7.87pIC50
Syk inhibitorInhibition7.85pIC50
tamatinibInhibition7.72pKd
BAY 61-3606Inhibition7.59pIC50
cerdulatinibInhibition7.49pIC50
Syk inhibitor IIInhibition7.39pIC50
GSK2646264Inhibition7.1pIC50
apitolisibInhibition6.87pIC50
lazertinibInhibition6.7pIC50
compound 7 [PMID: 22464456]Inhibition6.45pIC50
Syk inhibitor IIIInhibition5.55pIC50
ER-27319Inhibition5.0pIC50

Binding affinities (BindingDB)

4194 measured of 4778 human assays (4778 total across all organisms); most potent 50 below. Values come from heterogeneous assays and are not directly comparable.

LigandMeasureValuePatent
cis-(1S,4R)-4-[5-[4-amino-6-[[4-(trifluoromethyl)-2-pyridinyl]amino]-2-pyridinyl]-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexane-1-carboxylic acidIC500.071 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
4-hydroxy-4-[5-[4-methyl-6-[[4-(triazolidin-4-yl)-2-pyridinyl]amino]-2-pyridinyl]-1,3-thiazol-2-yl]cyclohexane-1-carboxylic acidIC500.072 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cis-(1R,4S)-4-hydroxy-2,2-dimethyl-4-[5-[4-methyl-6-[[4-(trifluoromethyl)-2-pyridinyl]amino]-2-pyridinyl]-1,3-thiazol-2-yl]cyclohexane-1-carboxylic acidIC500.073 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
BDBM302035IC500.086 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cis-(1S,4R)-4-hydroxy-2,2-dimethyl-4-[5-[6-[[4-(trifluoromethyl)-2-pyridinyl]amino]-2-pyridinyl]-1,3-thiazol-2-yl]cyclohexane-1-carboxylic acidIC500.092 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cis-(1S,4R)-4-[5-[6-[(5-chloro-4-methyl-2-pyridinyl)amino]-4-methyl-2-pyridinyl]-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexane-1-carboxylic acidIC500.097 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cyclopropyl-[5-[[4-[4-[[(3R)-3-hydroxypyrrolidin-1-yl]methyl]-3-methylpyrazol-1-yl]pyrimidin-2-yl]amino]-1-methylindol-3-yl]methanoneIC500.1 nMUS-8871778: Substituted pyrimidine compounds and their use as SYK inhibitors
2,2,2-trifluoro-1-[5-[[6-[4-[[(3R)-3-hydroxypyrrolidin-1-yl]methyl]-3-methylpyrazol-1-yl]-2-pyridinyl]amino]-1-methylindol-3-yl]ethanoneIC500.1 nMUS-8871778: Substituted pyrimidine compounds and their use as SYK inhibitors
(4R)-4-[(1R)-1-[7-(6-morpholin-4-yl-3-pyridinyl)quinolin-5-yl]oxyethyl]pyrrolidin-2-oneIC500.1 nMUS-8912173: Substituted quinolines and their use as medicaments
6-[5-[(1R)-1-[(3R)-5-oxopyrrolidin-3-yl]ethoxy]quinolin-7-yl]-1,4-dihydro-3,1-benzoxazin-2-oneIC500.1 nMUS-8912173: Substituted quinolines and their use as medicaments
(4R)-4-[(1R)-1-[7-[1-(2-hydroxyethyl)pyrazol-4-yl]quinolin-5-yl]oxyethyl]pyrrolidin-2-oneIC500.1 nMUS-8912173: Substituted quinolines and their use as medicaments
2-[4-[5-[(1R)-1-[(3R)-5-oxopyrrolidin-3-yl]ethoxy]quinolin-7-yl]pyrazol-1-yl]ethyl acetateIC500.1 nMUS-8912173: Substituted quinolines and their use as medicaments
(4R)-4-[(1R)-1-[[7-(6-morpholin-4-yl-3-pyridinyl)-1,6-naphthyridin-5-yl]oxy]ethyl]pyrrolidin-2-oneIC500.1 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1R)-1-[[7-[3-methoxy-4-(oxan-4-yloxy)phenyl]-1,6-naphthyridin-5-yl]oxy]propyl]pyrrolidin-2-oneIC500.1 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[1-[[7-(3,4-dimethoxyphenyl)-1,6-naphthyridin-5-yl]oxy]-2,2,2-trifluoroethyl]pyrrolidin-2-oneIC500.1 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1R)-1-[[7-(3,4-dimethoxyphenyl)-1,6-naphthyridin-5-yl]oxy]ethyl]pyrrolidin-2-oneIC500.1 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1R)-1-[[7-(3,4-dimethoxyphenyl)-1,6-naphthyridin-5-yl]oxy]propyl]pyrrolidin-2-oneIC500.1 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1R)-1-[[7-(3,4-dimethoxy-5-methylphenyl)-1,6-naphthyridin-5-yl]oxy]ethyl]pyrrolidin-2-oneIC500.1 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1R)-1-[[7-(3-methoxy-4-propan-2-yloxyphenyl)-1,6-naphthyridin-5-yl]oxy]ethyl]pyrrolidin-2-oneIC500.1 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1R)-1-[[7-(3-methoxy-4-propan-2-yloxyphenyl)-1,6-naphthyridin-5-yl]oxy]propyl]pyrrolidin-2-oneIC500.1 nMUS-8969568: Substituted naphthyridines and their use as medicaments
4-[1-[5-[6-[(5-fluoro-4-methyl-2-pyridinyl)amino]-4-methyl-2-pyridinyl]-1,3-thiazol-2-yl]-1-hydroxyethyl]cyclohexane-1-carboxylic acidIC500.1 nMUS-9120785: Pyridyl aminopyridines as Syk inhibitors
BDBM301994IC500.103 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cis-(1S,4R)-4-hydroxy-4-[5-[6-[(4-methoxy-2-pyridinyl)amino]-4-methyl-2-pyridinyl]-1,3-thiazol-2-yl]-2,2-dimethylcyclohexane-1-carboxylic acidIC500.104 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cis-(1S,4R)-4-hydroxy-2,2-dimethyl-4-[5-[4-methyl-6-[(4-methyl-2-pyridinyl)amino]-2-pyridinyl]-1,3-thiazol-2-yl]cyclohexane-1-carboxylic acidIC500.113 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
4-[5-[4-amino-6-[[4-(trifluoromethyl)-2-pyridinyl]amino]-2-pyridinyl]-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexane-1-carboxylic acidIC500.119 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cis-(1S,4R)-4-[5-[6-[(5-fluoro-4-methyl-2-pyridinyl)amino]-4-methyl-2-pyridinyl]-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexane-1-carboxylic acidIC500.127 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
(5R)-5-hydroxy-5-[5-[3-methyl-5-([1,2,4]triazolo[1,5-a]pyridin-2-ylamino)phenyl]-1,3-thiazol-2-yl]-7,8-dihydro-6H-naphthalene-2-carboxylic acidIC500.129 nMUS-9670196: Thiazole-substituted aminoheteroaryls as Spleen Tyrosine Kinase inhibitors
4-hydroxy-4-[5-[4-methyl-6-[(4-piperidin-4-yloxy-2-pyridinyl)amino]-2-pyridinyl]-1,3-thiazol-2-yl]cyclohexane-1-carboxylic acidIC500.152 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cis-(1S,4R)-4-[5-[6-[(4-tert-butyl-2-pyridinyl)amino]-2-pyridinyl]-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexane-1-carboxylic acidIC500.158 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
cis-(1S,4R)-4-hydroxy-2,2-dimethyl-4-[5-[4-methyl-6-[[4-(trifluoromethyl)-2-pyridinyl]amino]-2-pyridinyl]-1,3-thiazol-2-yl]cyclohexane-1-carboxylic acidIC500.16 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
(1S,2R,4R)-4-[5-[6-[(5-fluoro-4-methyl-2-pyridinyl)amino]-4-methyl-2-pyridinyl]-1,3-thiazol-2-yl]-4-hydroxy-2-methylcyclohexane-1-carboxylic acidIC500.161 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
4-hydroxy-2,2-dimethyl-4-[5-[4-methyl-6-[[4-(trifluoromethyl)-2-pyridinyl]amino]-2-pyridinyl]-1,3-thiazol-2-yl]cyclohexane-1-carboxylic acidIC500.164 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
(4R)-4-[(1R)-1-[7-(1-methylpyrazol-4-yl)quinolin-5-yl]oxyethyl]pyrrolidin-2-oneIC500.2 nMUS-8912173: Substituted quinolines and their use as medicaments
N-ethyl-N-[[4-[5-[(1R)-1-[(3R)-5-oxopyrrolidin-3-yl]ethoxy]quinolin-7-yl]phenyl]methyl]acetamideIC500.2 nMUS-8912173: Substituted quinolines and their use as medicaments
(4R)-4-[(1R)-1-[7-(1-ethylpyrazol-4-yl)quinolin-5-yl]oxyethyl]pyrrolidin-2-oneIC500.2 nMUS-8912173: Substituted quinolines and their use as medicaments
(4R)-4-[(1R)-1-[7-[4-(1-aminocyclopropyl)-3-chlorophenyl]quinolin-5-yl]oxyethyl]pyrrolidin-2-oneIC500.2 nMUS-8912173: Substituted quinolines and their use as medicaments
(4R)-4-[(1R)-1-[[7-(3,4,5-trimethoxyphenyl)-1,6-naphthyridin-5-yl]oxy]ethyl]pyrrolidin-2-oneIC500.2 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1S)-1-[[7-(3,4-dimethoxyphenyl)-1,6-naphthyridin-5-yl]oxy]-2,2,2-trifluoroethyl]pyrrolidin-2-oneIC500.2 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1R)-1-[[7-(3,4-dimethoxyphenyl)-1,6-naphthyridin-5-yl]oxy]-3-methoxypropyl]pyrrolidin-2-oneIC500.2 nMUS-8969568: Substituted naphthyridines and their use as medicaments
(4R)-4-[(1R)-1-[(7-phenyl-1,6-naphthyridin-5-yl)oxy]ethyl]pyrrolidin-2-oneIC500.2 nMUS-8969568: Substituted naphthyridines and their use as medicaments
5-{[(1R,2S)-2-aminocyclohexyl]amino}-3-(5-chloro-1H-indol-2-yl)pyrazine-2-carboxamideIC500.2 nMUS-9775839: 2-pyrazine carboxamides as spleen tyrosine kinase inhibitors
5-{[(3R,4R)-3- aminotetrahydro-2H-pyran-4- yl]amino}-3-(5-ethyl-1H- indol-2-yl)pyrazine-2- carboxamideIC500.2 nMUS-9775839: 2-pyrazine carboxamides as spleen tyrosine kinase inhibitors
cis-(1S,4R)-4-[5-[6-[(5-chloro-4-methyl-2-pyridinyl)amino]-2-pyridinyl]-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexane-1-carboxylic acidIC500.208 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
3-[[(1R,2S)-2-aminocyclohexyl]amino]-5-[(1-ethylindol-4-yl)amino]-1,2,4-triazine-6-carboxamideIC500.21 nMUS-9145414: 1,2,4-triazine-6-carboxamide derivative
3-[[(1R,2S)-2-aminocyclohexyl]amino]-5-[[1-(difluoromethyl)indol-4-yl]amino]-1,2,4-triazine-6-carboxamideIC500.22 nMUS-9145414: 1,2,4-triazine-6-carboxamide derivative
BDBM302037IC500.228 nMUS-9598405: Thiazole-substituted aminopyridines as spleen tyrosine kinase inhibitors
3-[[(1R,2S)-2-aminocyclohexyl]amino]-5-[(2-methyl-7-phenylindazol-5-yl)amino]-1,2,4-triazine-6-carboxamideIC500.23 nMUS-9145414: 1,2,4-triazine-6-carboxamide derivative
3-[[(1R,2S)-2-aminocyclohexyl]amino]-5-[[1-(1-methylpyrazol-4-yl)indol-4-yl]amino]-1,2,4-triazine-6-carboxamideIC500.26 nMUS-9145414: 1,2,4-triazine-6-carboxamide derivative
3-[[(1R,2S)-2-aminocyclohexyl]amino]-5-[(2,4-dimethylindazol-6-yl)amino]-1,2,4-triazine-6-carboxamideIC500.26 nMUS-9145414: 1,2,4-triazine-6-carboxamide derivative
3-[[(1R,2S)-2-aminocyclohexyl]amino]-5-(1-benzothiophen-5-ylamino)-1,2,4-triazine-6-carboxamideIC500.26 nMUS-9145414: 1,2,4-triazine-6-carboxamide derivative

ChEMBL bioactivities

6100 potent at pChembl≥5 of 6100 total, top 50 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
11.00IC500.01nMCHEMBL3415598
10.52IC500.03nMCHEMBL3622956
10.52IC500.03nMCHEMBL4744190
10.34IC500.046nMCHEMBL5425739
10.22IC500.06nMCHEMBL3415583
10.22IC500.06nMCHEMBL4780257
10.17IC500.067nMCHEMBL5435311
10.15IC500.071nMCHEMBL5775813
10.14IC500.072nMCHEMBL5748905
10.14IC500.073nMCHEMBL5788352
10.11IC500.077nMCHEMBL4776352
10.10IC500.08nMCHEMBL5410717
10.07IC500.086nMCHEMBL5739861
10.05IC500.09nMCHEMBL4753469
10.04IC500.092nMCHEMBL5868234
10.01IC500.098nMCHEMBL4762995
10.01IC500.097nMCHEMBL5831684
10.00IC500.1nMCHEMBL3415589
10.00IC500.1nMCHEMBL3415594
10.00IC500.1nMCHEMBL3415606
10.00IC500.1nMCHEMBL3657551
10.00IC500.1nMCHEMBL3657550
10.00IC500.1nMCHEMBL3653791
10.00IC500.1nMCHEMBL3653846
10.00IC500.1nMCHEMBL3653847
10.00IC500.1nMCHEMBL3653776
10.00IC500.1nMCHEMBL3695989
10.00IC500.1nMCHEMBL3696007
10.00IC500.1nMCHEMBL3696011
10.00IC500.1nMCHEMBL3696026
10.00IC500.1nMCHEMBL3696035
10.00IC500.1nMCHEMBL3696044
10.00IC500.1nMCHEMBL3696046
10.00IC500.1nMCHEMBL3696047
10.00IC500.1nMCHEMBL3898524
10.00IC500.1nMCHEMBL5985551
9.99IC500.103nMCHEMBL5961927
9.98IC500.104nMCHEMBL5925558
9.96IC500.11nMCHEMBL4753141
9.95IC500.113nMCHEMBL5795831
9.92IC500.119nMCHEMBL5952385
9.90IC500.127nMCHEMBL5773271
9.89IC500.13nMCHEMBL4784088
9.89IC500.13nMCHEMBL5434339
9.89IC500.129nMCHEMBL5921266
9.88IC500.133nMSTAUROSPORINE
9.85IC500.14nMCHEMBL4752008
9.82IC500.15nMCHEMBL4754597
9.82IC500.152nMCHEMBL5923968
9.80IC500.158nMCHEMBL5911374

PubChem BioAssay actives

1710 with measured affinity, of 4224 total; 50 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.

CompoundAssayTypeValueUnit
5-[[(1R,2S)-2-aminocyclohexyl]amino]-3-[[6-methyl-2-(triazol-2-yl)pyrimidin-4-yl]amino]pyridine-2-carboxamide1199532: Inhibition of full-length GST-tagged human Syk preincubated for 10 mins followed by peptide substrate/ATP addition measured after 45 mins by TR-FRET assayic50<0.0001uM
methyl 5-[[4-[5-[(dimethylamino)methyl]-1-methylpyrazol-3-yl]pyrimidin-2-yl]amino]-1,7-dimethylindazole-3-carboxylate1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic50<0.0001uM
17-hydroxy-10,13,24-trimethyl-2,4,8,9,13,14,20,23,24,33-decazahexacyclo[20.5.2.214,17.13,7.18,11.025,29]tritriaconta-1(28),3,5,7(33),9,11(32),22,25(29),26-nonaen-21-one2011922: Inhibition of full length recombinant human SYKic50<0.0001uM
1-[[1-[2-[(3-chloro-1,2-dimethylindol-5-yl)amino]pyrimidin-4-yl]-3-methylpyrazol-4-yl]methyl]azetidin-3-ol1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic50<0.0001uM
5-[[(1R,2S)-2-aminocyclohexyl]amino]-3-[[4,6-dimethyl-5-(1-methylpyrazol-4-yl)-2-pyridinyl]amino]pyridine-2-carboxamide1199532: Inhibition of full-length GST-tagged human Syk preincubated for 10 mins followed by peptide substrate/ATP addition measured after 45 mins by TR-FRET assayic500.0001uM
N,N-dimethyl-1-[1-[2-(1-methyl-5-methylsulfonylindol-3-yl)-1H-imidazo[4,5-b]pyridin-7-yl]pyrazol-4-yl]methanamine1674803: Inhibition of SYK (unknown origin)ic500.0001uM
5-[[4-[4-[(dimethylamino)methyl]-3-fluoropyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0001uM
5-[[4-[4-[(dimethylamino)methyl]-3-methoxypyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0001uM
7-[[4-[4-[(dimethylamino)methyl]pyrazol-1-yl]pyrimidin-2-yl]amino]-N-methylimidazo[1,5-a]pyridine-1-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0001uM
3-[7-[4-[(dimethylamino)methyl]pyrazol-1-yl]-1H-imidazo[4,5-b]pyridin-2-yl]-N,1-dimethylindole-5-carboxamide1674803: Inhibition of SYK (unknown origin)ic500.0001uM
N,N-dimethyl-1-[3-methyl-1-[2-[1-methyl-5-(5-methyl-1,3,4-oxadiazol-2-yl)indol-3-yl]-1H-imidazo[4,5-b]pyridin-7-yl]pyrazol-4-yl]methanamine1674803: Inhibition of SYK (unknown origin)ic500.0001uM
5-[[4-[4-[(3-hydroxyazetidin-1-yl)methyl]-3-methylpyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0001uM
N-[4-[5-[(dimethylamino)methyl]-1-methylpyrazol-3-yl]pyrimidin-2-yl]-1-methyl-3-(5-methyl-1,3,4-oxadiazol-2-yl)indazol-5-amine1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0001uM
23-[(2R)-2-hydroxypropyl]-10,13-dimethyl-16-oxa-2,4,8,9,13,19,22,23,30-nonazapentacyclo[19.5.2.13,7.18,11.024,28]triaconta-1(27),3,5,7(30),9,11(29),21,24(28),25-nonaen-20-one2011922: Inhibition of full length recombinant human SYKic500.0001uM
10,13,24-trimethyl-2,4,8,9,13,14,20,23,24,33-decazahexacyclo[20.5.2.214,17.13,7.18,11.025,29]tritriaconta-1(28),3,5,7(33),9,11(32),22,25(29),26-nonaen-21-one2011922: Inhibition of full length recombinant human SYKic500.0001uM
10,13,23-trimethyl-16-oxa-2,4,8,9,13,19,22,23,30-nonazapentacyclo[19.5.2.13,7.18,11.024,28]triaconta-1(27),3,5,7(30),9,11(29),21,24(28),25-nonaen-20-one2011922: Inhibition of full length recombinant human SYKic500.0001uM
(2S,3R,4R,6R)-3-methoxy-2-methyl-4-(methylamino)-29-oxa-1,7,17-triazaoctacyclo[12.12.2.12,6.07,28.08,13.015,19.020,27.021,26]nonacosa-8,10,12,14,19,21,23,25,27-nonaen-16-one1715153: Inhibition of human SYK using poly[Glu:Tyr] (4:1) as substrate by [gamma-33P]-ATP assayic500.0001uM
5-[[(1R,2S)-2-aminocyclohexyl]amino]-3-[(4,6-dimethyl-2-pyridinyl)amino]pyridine-2-carboxamide1199532: Inhibition of full-length GST-tagged human Syk preincubated for 10 mins followed by peptide substrate/ATP addition measured after 45 mins by TR-FRET assayic500.0001uM
5-[[(3S,4S)-4-amino-1,1-dioxothian-3-yl]amino]-3-[(4,6-dimethyl-2-pyridinyl)amino]pyridine-2-carboxamide1199532: Inhibition of full-length GST-tagged human Syk preincubated for 10 mins followed by peptide substrate/ATP addition measured after 45 mins by TR-FRET assayic500.0001uM
5-[[(1R,2S)-2-aminocyclohexyl]amino]-3-[[6-(triazol-2-yl)-2-pyridinyl]amino]pyridine-2-carboxamide1199532: Inhibition of full-length GST-tagged human Syk preincubated for 10 mins followed by peptide substrate/ATP addition measured after 45 mins by TR-FRET assayic500.0001uM
5-[[(1R,2S)-2-aminocyclohexyl]amino]-3-[[6-(2-hydroxy-2-methylpropoxy)-2-methylpyrimidin-4-yl]amino]pyridine-2-carboxamide1199532: Inhibition of full-length GST-tagged human Syk preincubated for 10 mins followed by peptide substrate/ATP addition measured after 45 mins by TR-FRET assayic500.0002uM
N-[4-[5-[(dimethylamino)methyl]-1-methylpyrazol-3-yl]pyrimidin-2-yl]-3-methyl-1-(5-methyl-1,3,4-oxadiazol-2-yl)imidazo[1,5-a]pyridin-7-amine1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0002uM
7-[[4-[4-[(dimethylamino)methyl]pyrazol-1-yl]pyrimidin-2-yl]amino]-N,3-dimethylimidazo[1,5-a]pyridine-1-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0002uM
(3R,4R)-4-N-[1-[2-(1-methylindol-4-yl)-1H-imidazo[4,5-b]pyridin-7-yl]pyrazol-4-yl]oxane-3,4-diamine1674803: Inhibition of SYK (unknown origin)ic500.0002uM
N-[3-[7-[4-[(dimethylamino)methyl]-3-methylpyrazol-1-yl]-1H-imidazo[4,5-b]pyridin-2-yl]-1-methylindol-5-yl]acetamide1674803: Inhibition of SYK (unknown origin)ic500.0002uM
(3R,4R)-4-N-[3-methyl-1-[2-[[1-methyl-3-(5-methyl-1,3,4-oxadiazol-2-yl)indazol-5-yl]amino]pyrimidin-4-yl]pyrazol-4-yl]oxane-3,4-diamine1696665: Inhibition of SYK (unknown origin)ic500.0002uM
3-[7-[4-[(dimethylamino)methyl]pyrazol-1-yl]-1H-imidazo[4,5-b]pyridin-2-yl]-N,1-dimethylpyrrolo[2,3-c]pyridine-5-carboxamide1674803: Inhibition of SYK (unknown origin)ic500.0002uM
N,1-dimethyl-5-[[4-[3-methyl-4-[(3R)-piperidin-3-yl]oxypyrazol-1-yl]pyrimidin-2-yl]amino]indazole-3-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0002uM
N-[4-[5-[(dimethylamino)methyl]-1-methylpyrazol-3-yl]pyrimidin-2-yl]-1-(5-methyl-1,3,4-oxadiazol-2-yl)imidazo[1,5-a]pyridin-7-amine1674803: Inhibition of SYK (unknown origin)ic500.0002uM
5-[[4-[4-[(dimethylamino)methyl]pyrazol-1-yl]pyrimidin-2-yl]amino]-N,1,7-trimethylindazole-3-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0002uM
7-[[4-[4-(2-aminoethylamino)pyrazol-1-yl]pyrimidin-2-yl]amino]-N,3-dimethylimidazo[1,5-a]pyridine-1-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0002uM
7-[[4-[4-[(2S,4S)-4-hydroxy-1-methylpyrrolidin-2-yl]pyrazol-1-yl]pyrimidin-2-yl]amino]-N,3-dimethylimidazo[1,5-a]pyridine-1-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0002uM
5-[[4-[4-[(dimethylamino)methyl]pyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0002uM
7-[[4-[4-[(2S,4R)-4-fluoro-1-methylpyrrolidin-2-yl]pyrazol-1-yl]pyrimidin-2-yl]amino]-N,3-dimethylimidazo[1,5-a]pyridine-1-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0002uM
1-[5-[[4-[4-[[(3R,4R)-3-aminooxan-4-yl]amino]-3-methylpyrazol-1-yl]pyrimidin-2-yl]amino]-1-methylindol-3-yl]-2,2,2-trifluoroethanone1696665: Inhibition of SYK (unknown origin)ic500.0002uM
10,13-dimethyl-23-(oxetan-3-yl)-16-oxa-2,4,8,9,13,19,22,23,30-nonazapentacyclo[19.5.2.13,7.18,11.024,28]triaconta-1(27),3,5,7(30),9,11(29),21,24(28),25-nonaen-20-one2011922: Inhibition of full length recombinant human SYKic500.0002uM
23-[(2S)-2-hydroxypropyl]-10,13-dimethyl-16-oxa-2,4,8,9,13,19,22,23,30-nonazapentacyclo[19.5.2.13,7.18,11.024,28]triaconta-1(27),3,5,7(30),9,11(29),21,24(28),25-nonaen-20-one2011922: Inhibition of full length recombinant human SYKic500.0002uM
5-[[4-[4-[(dimethylamino)methyl]-3-methylpyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1674803: Inhibition of SYK (unknown origin)ic500.0003uM
5-[[4-[4-[[(3S,4S)-4-fluoropyrrolidin-3-yl]amino]-3-methylpyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0003uM
5-[[4-[4-[[(3R,4R)-3-aminooxan-4-yl]amino]-3-methylpyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0003uM
5-[[4-[4-[(1-aminocyclopropyl)methylamino]-3-methylpyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0003uM
5-[[4-[4-[[(3R,4R)-3-aminooxan-4-yl]amino]pyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0003uM
5-[[4-[5-[(dimethylamino)methyl]-1-methylpyrazol-3-yl]pyrimidin-2-yl]amino]-N,1,7-trimethylindazole-3-carboxamide1681023: Inhibition of recombinant full length SYK (unknown origin) by biochemical Omnia assayic500.0003uM
5-[[(1R,2S)-2-aminocyclohexyl]amino]-3-[[4-(3-hydroxy-3-methylbutyl)-6-methyl-2-pyridinyl]amino]pyridine-2-carboxamide1199532: Inhibition of full-length GST-tagged human Syk preincubated for 10 mins followed by peptide substrate/ATP addition measured after 45 mins by TR-FRET assayic500.0004uM
7-[[4-[4-[[(3R,4R)-3-aminooxan-4-yl]amino]pyrazol-1-yl]pyrimidin-2-yl]amino]-N,3-dimethylimidazo[1,5-a]pyridine-1-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0004uM
5-[[4-[4-[(3S,4R)-4-fluoropyrrolidin-3-yl]oxy-3-methylpyrazol-1-yl]pyrimidin-2-yl]amino]-N,1-dimethylindazole-3-carboxamide1696665: Inhibition of SYK (unknown origin)ic500.0004uM
23-(2-hydroxy-2-methylpropyl)-10,13-dimethyl-16-oxa-2,4,8,9,13,19,22,23,30-nonazapentacyclo[19.5.2.13,7.18,11.024,28]triaconta-1(27),3,5,7(30),9,11(29),21,24(28),25-nonaen-20-one2011922: Inhibition of full length recombinant human SYKic500.0004uM
23-(2-hydroxyethyl)-10,13-dimethyl-16-oxa-2,4,8,9,13,19,22,23,30-nonazapentacyclo[19.5.2.13,7.18,11.024,28]triaconta-1(27),3,5,7(30),9,11(29),21,24(28),25-nonaen-20-one2011922: Inhibition of full length recombinant human SYKic500.0004uM
6-(1H-indazol-6-yl)-N-(3-methoxy-4-morpholin-4-ylphenyl)imidazo[1,2-a]pyrazin-8-amine1142338: Inhibition of full length Syk (unknown origin) using biotinylated peptide substrateic500.0004uM
5-[[(1R,2S)-2-aminocyclohexyl]amino]-3-(1H-indol-2-yl)pyrazine-2-carboxamide1199532: Inhibition of full-length GST-tagged human Syk preincubated for 10 mins followed by peptide substrate/ATP addition measured after 45 mins by TR-FRET assayic500.0005uM

CTD chemical–gene interactions

70 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects cotreatment, increases expression, affects expression7
bisphenol Adecreases reaction, increases phosphorylation, decreases expression, decreases methylation5
(+)-JQ1 compounddecreases expression3
Resveratrolincreases expression, affects binding, decreases reaction, increases reaction, increases phosphorylation (+2 more)3
Plant Extractsaffects cotreatment, increases expression, decreases phosphorylation, decreases expression, increases abundance3
3,3’,4,5’-tetrahydroxystilbenedecreases reaction, increases phosphorylation, decreases abundance, decreases activity2
entinostatincreases expression, affects cotreatment2
Arsenic Trioxideincreases phosphorylation, increases expression, decreases reaction2
Panobinostataffects cotreatment, increases expression2
Benzo(a)pyrenedecreases methylation, increases expression2
Nickeldecreases expression, increases expression2
Phenylmercuric Acetateaffects cotreatment, increases expression2
Tobacco Smoke Pollutionaffects expression2
Tretinoindecreases expression, increases expression2
bisphenol Fdecreases methylation1
biochanin Aincreases phosphorylation, decreases reaction1
triphenyl phosphateaffects expression1
bis(tri-n-butyltin)oxideincreases expression1
decabromobiphenyl etherdecreases expression1
tributyltinincreases expression1
beta-lapachonedecreases expression1
cobaltous chlorideincreases expression1
ochratoxin Aincreases expression1
3,4,3’,4’-tetrachlorobiphenylaffects expression1
convulxindecreases reaction, increases reaction, affects reaction, increases phosphorylation, affects binding1
methacrylaldehydeaffects cotreatment, decreases expression1
phosphatidylinositol 3,4,5-triphosphatedecreases abundance, decreases activity1
spiraeosidedecreases phosphorylation1
2-propylthio-D-beta,gamma-difluoromethylene ATPaffects reaction, increases phosphorylation1
2-palmitoylglycerolincreases expression1

ChEMBL screening assays

873 unique, capped per target: 863 binding, 10 functional

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL1019643BindingInhibition of SYK at 1 uMPyranonaphthoquinone lactones: a new class of AKT selective kinase inhibitors alkylate a regulatory loop cysteine. — J Med Chem
CHEMBL1963712FunctionalPUBCHEM_BIOASSAY: Navigating the Kinome. (Class of assay: other) Panel member name: SYKPubChem BioAssay data set

Cellosaurus cell lines

92 cell lines: 89 cancer cell line, 2 transformed cell line, 1 spontaneously immortalized cell line

First 10 cell lines (id-ordered, not curated):

CellosaurusNameCategorySex
CVCL_0354J.CaM1.6Cancer cell lineMale
CVCL_0367Jurkat E6.1Cancer cell lineMale
CVCL_1316J.RT3-T3.5Cancer cell lineMale
CVCL_2530J45.01Cancer cell lineMale
CVCL_6410J.gamma1Cancer cell lineMale
CVCL_6411J.gamma1.WTCancer cell lineMale
CVCL_6429P116Cancer cell lineMale
CVCL_6430P116.cl39Cancer cell lineMale
CVCL_681910B10Cancer cell lineMale
CVCL_A9P4BPS Bioscience Jurkat E6.1 NF-kappaB-driven luciferase reporterCancer cell lineMale

Clinical trials (associated diseases)

300 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT02513940PHASE4COMPLETEDInfluence of Testosterone Administration on Drug-Induced QT Interval Prolongation and Torsades de Pointes
NCT03834883PHASE4COMPLETEDReducing the Risk of Drug-Induced QT Interval Lengthening in Women
NCT04169100PHASE4UNKNOWNNovel Form of Acquired Long QT Syndrome
NCT04675788PHASE4COMPLETEDNovel Approaches for Minimizing Drug-Induced QT Interval Lengthening
NCT02687724PHASE4UNKNOWNGolimumab (GLM) Dose Optimisation to Adequate Levels to Achieve Response in Colitis
NCT00180206PHASE4UNKNOWNBirmingham Hip Resurfacing (BHR) Study: Implantation of a Hip Resurfacing Endoprosthesis
NCT00236366PHASE4COMPLETEDA Study of the Effect on Pain Control of Treatment With Fentanyl, Administered Through the Skin, Compared With Placebo in Patients With Osteoarthritis
NCT00291915PHASE4UNKNOWNMulticenter Randomized Prospective Trial Comparing Methotrexate Alone or in Combination With Adalimumab in Early Arthritis
NCT00510536PHASE4COMPLETEDTreatment of Mild to Moderate Joint Pain in Patients With Chronic Plaque Psoriasis Receiving Efalizumab
NCT00524160PHASE4COMPLETEDA Study of the Effect on Pain Control of Treatment With Fentanyl, Administered Through the Skin, in Patients With Rheumatoid Arthritis or Osteoarthritis
NCT00696059PHASE4COMPLETEDHumira in Rheumatoid Arthritis - Do Bone Erosions Heal?
NCT01027286PHASE4COMPLETEDProspective Evaluation of Vitagel for Reduction in Blood Loss and Pain Following Unilateral Total Knee Arthroplasty
NCT01264965PHASE4TERMINATEDNon-cancer Pain and Cognitive Impairment: A Disabling Relationship
NCT01270620PHASE4COMPLETEDDesflurane or Propofol Anesthesia in Elderly Obese Patients Undergoing Total Knee Replacement
NCT01275014PHASE4UNKNOWNCorticosteroids as Additive in Temporomandibular Joint (TMJ) Arthrocentesis
NCT01414569PHASE4COMPLETEDDexamethasone for Pain After Shoulder Surgery
NCT02011464PHASE4COMPLETEDEvaluation Exparel Delivered in Knee Replacement
NCT02697955PHASE4COMPLETEDThe Effect of Subsartorial Saphenous Block on Postoperative Pain Following Major Ankle and Hind Foot Surgery
NCT02926651PHASE4WITHDRAWNSingle Versus Multi-Dose Oral Tranexamic Acid in Patients at High Risk for Blood Transfusion After Total Joint Arthroplasty
NCT03659318PHASE4COMPLETEDRobotic-Assisted Versus Conventional Total Knee Arthroplasty(TKA)
NCT01369329PHASE3COMPLETEDA Study to Evaluate the Safety and Efficacy of Ustekinumab in Patients With Moderately to Severely Active Crohn’s Disease Who Have Failed or Are Intolerant to Tumor Necrosis Factor (TNF) Antagonist Therapy (UNITI-1)
NCT01369342PHASE3COMPLETEDA Study to Evaluate the Safety and Efficacy of Ustekinumab Induction Therapy in Patients With Moderately to Severely Active Crohn’s Disease (UNITI-2)
NCT01369355PHASE3COMPLETEDA Study to Evaluate the Safety and Efficacy of Ustekinumab Maintenance Therapy in Patients With Moderately to Severely Active Crohn’s Disease (IM-UNITI)
NCT05947669PHASE3RECRUITINGEfficacy and Safety of Infliximab for Immune Checkpoint Inhibitor Induced Colitis
NCT00153660PHASE3COMPLETEDCelecoxib Versus Naproxen for Prevention of Recurrent Ulcer Bleeding in Arthritis Patients
NCT00153673PHASE3COMPLETEDEffect of Selective COX-2 Inhibition on Ulcer Healing
NCT00211718PHASE3UNKNOWNIntra-Articular Injection of Botulinum Toxin Type A for Shoulder Pain
NCT00313365PHASE3WITHDRAWNSurgical Lavage vs Serial Needle Aspiration for Infected Joints
NCT00365313PHASE3COMPLETEDPreventing Recurrent Ulcer Bleeding in Arthritis Patients Using Esomeprazole Plus Celecoxib
NCT00526201PHASE3COMPLETEDHelp Arthritis With Exercise in West Virginia
NCT00526435PHASE3COMPLETEDEvaluation of Walk With Ease in Arthritis
NCT00646178PHASE3COMPLETEDStudy of the Safety and Efficacy of Adalimumab in Subjects With Moderate to Severely Active Psoriatic Arthritis Subjects With Inadequate Response to Disease Modifying Anti-Rheumatic Drug Therapy
NCT00733902PHASE3COMPLETEDTanezumab in Osteoarthritis of the Knee
NCT00744471PHASE3COMPLETEDTanezumab in Osteoarthritis Of The Hip
NCT00765362PHASE3COMPLETEDMobile - Bearing Knee Study
NCT00784277PHASE3COMPLETEDA Study to Compare the Frequency of Constipation Symptoms With Tapentadol Immediate Release (IR) Treatment Versus Oxycodone IR Treatment in Patients With End-stage Joint Disease
NCT00809354PHASE3TERMINATEDLong-Term Analgesic Efficacy And Safety Of Tanezumab Alone Or In Combination With Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) Versus NSAIDs Alone In Patients With Osteoarthritis Of The Knee Or Hip
NCT00830063PHASE3COMPLETEDTanezumab In Osteoarthritis Of The Knee (2)
NCT01004432PHASE3COMPLETEDGolimumab in Rheumatoid Arthritis Participants With an Inadequate Response to Etanercept (ENBREL) or Adalimumab (HUMIRA)
NCT01089725PHASE3TERMINATEDEfficacy And Safety Study Of Tanezumab Subcutaneous Administration In Osteoarthritis - A Subcutaneous/Intravenous Bridging Study