STK11

gene
On this page

Also known as PJSLKB1

Summary

STK11 (serine/threonine kinase 11, HGNC:11389) is a protein-coding gene on chromosome 19p13.3, encoding Serine/threonine-protein kinase STK11 (Q15831). Tumor suppressor serine/threonine-protein kinase that controls the activity of AMP-activated protein kinase (AMPK) family members, thereby playing a role in various processes such as cell metabolism, cell polarity, apoptosis and DNA damage response. In precision oncology, STK11 Mutation confers sensitivity to Vistusertib in Lung Non-small Cell Carcinoma (CIViC Level B); 10 further curated variant–drug associations are listed below. It is a selective cancer dependency (DepMap: 18.9% of cell lines) and haploinsufficient (ClinGen: sufficient evidence).

The protein encoded by this gene is a serine/threonine kinase that regulates cell polarity and energy metabolism and functions as a tumor suppressor. Mutations in this gene have been associated with the autosomal dominant Peutz-Jeghers syndrome, as well as with skin, pancreatic, and testicular cancers.

Source: NCBI Gene 6794 — RefSeq curated summary.

At a glance

  • Gene–disease (curated): Peutz-Jeghers syndrome (Definitive, ClinGen) — +2 more curated relationships
  • GWAS associations: 12
  • Clinical variants (ClinVar): 2,818 total — 310 pathogenic, 80 likely-pathogenic
  • Phenotypes (HPO): 69
  • Druggable target: yes — 17 molecules with ChEMBL bioactivity
  • Precision-oncology evidence (CIViC): 11 curated variant–drug associations
  • Cancer driver (intOGen): loss-of-function (tumor-suppressor-like) across 7 cancer types
  • Cancer dependency (DepMap): dependent in 18.9% of screened cell lines
  • Dosage sensitivity (ClinGen): haploinsufficiency sufficient evidence, triplosensitivity no evidence
  • MANE Select transcript: NM_000455

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:11389
Approved symbolSTK11
Nameserine/threonine kinase 11
Location19p13.3
Locus typegene with protein product
StatusApproved
AliasesPJS, LKB1
Ensembl geneENSG00000118046
Ensembl biotypeprotein_coding
OMIM602216
Entrez6794

Gene structure

Transcript identifiers

Ensembl transcripts: 20 — 12 protein_coding, 5 nonsense_mediated_decay, 3 retained_intron

ENST00000326873, ENST00000585465, ENST00000585748, ENST00000585851, ENST00000586358, ENST00000589152, ENST00000591133, ENST00000593219, ENST00000652231, ENST00000714318, ENST00000714319, ENST00000714320, ENST00000714321, ENST00000714322, ENST00000714323, ENST00000916852, ENST00000916853, ENST00000942781, ENST00000942782, ENST00000942783

RefSeq mRNA: 2 — MANE Select: NM_000455 NM_000455, NM_001407255

CCDS: CCDS45896

Canonical transcript exons

ENST00000326873 — 10 exons

ExonStartEnd
ENSE0000273975912193241219413
ENSE0000401365112264541226663
ENSE0000401365212229851223172
ENSE0000401365412212131221340
ENSE0000401365512184171218500
ENSE0000401365612203731220505
ENSE0000401365712205811220717
ENSE0000401365812219491222006
ENSE0000401365912275931228431
ENSE0000402355812057781207203

Expression profiles

Bgee: expression breadth ubiquitous, 238 present calls, max score 97.81.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 13.6234 / max 197.3485, expressed in 1791 samples.

FANTOM5 promoters (8 alternative TSS)

Promoter IDTPM avgSamples expressed
17289613.21491791
1728970.261281
1728980.048910
1729000.03146
1728990.02744
1729030.01746
1729010.01644
1729020.00572

Top tissues by expression

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

TissueAnatomy IDExpression scoreQuality
left testisUBERON:000453397.81gold quality
right testisUBERON:000453497.81gold quality
hindlimb stylopod muscleUBERON:000425295.71gold quality
gastrocnemiusUBERON:000138895.57gold quality
testisUBERON:000047395.14gold quality
granulocyteCL:000009495.08gold quality
muscle of legUBERON:000138394.99gold quality
stromal cell of endometriumCL:000225594.96gold quality
right hemisphere of cerebellumUBERON:001489094.44gold quality
tendon of biceps brachiiUBERON:000818894.42gold quality
mucosa of transverse colonUBERON:000499194.24gold quality
cerebellar hemisphereUBERON:000224594.03gold quality
cerebellar cortexUBERON:000212993.84gold quality
apex of heartUBERON:000209893.68gold quality
left adrenal gland cortexUBERON:003582593.01gold quality
transverse colonUBERON:000115792.91gold quality
body of stomachUBERON:000116192.84gold quality
endothelial cellCL:000011592.69gold quality
right atrium auricular regionUBERON:000663192.65gold quality
lower esophagus mucosaUBERON:003583492.65gold quality
left adrenal glandUBERON:000123492.57gold quality
small intestine Peyer’s patchUBERON:000345492.57gold quality
skin of legUBERON:000151192.56gold quality
endocervixUBERON:000045892.53gold quality
right uterine tubeUBERON:000130292.47gold quality
left ovaryUBERON:000211992.46gold quality
metanephros cortexUBERON:001053392.36gold quality
right adrenal gland cortexUBERON:003582792.34gold quality
right adrenal glandUBERON:000123392.33gold quality
sural nerveUBERON:001548892.32gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes4.88

Regulation

Is transcription factor: yes

Downstream targets (CollecTRI)

1 targets.

TargetRegulation
CPS1Repression

Upstream regulators (CollecTRI, top): CREBZF, ESR1, FOXO3, HNF4A, NFYA, NFYB, NKX2-1, NR1H4, SP1, STAT3, STAT5A, TP53, TXK

miRNA regulators (miRDB)

32 targeting STK11, 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-6870-5P99.9968.552115
HSA-MIR-4723-5P99.9768.702034
HSA-MIR-569899.9768.492029
HSA-MIR-7111-5P99.9768.482062
HSA-MIR-106A-5P99.9073.942683
HSA-MIR-627-3P99.9071.423316
HSA-MIR-17-5P99.8973.832665
HSA-MIR-106B-5P99.8874.722795
HSA-MIR-20A-5P99.8874.762769
HSA-MIR-20B-5P99.8874.012621
HSA-MIR-519D-3P99.8873.972607
HSA-MIR-526B-3P99.8874.062587
HSA-MIR-93-5P99.8873.982606
HSA-MIR-137-3P99.8774.742401
HSA-MIR-127599.4767.902749
HSA-MIR-6731-5P99.2867.422375
HSA-MIR-6814-5P99.0366.681273
HSA-MIR-6829-5P98.8665.121480
HSA-MIR-5011-3P98.6364.81638
HSA-MIR-4782-5P98.3569.331474
HSA-MIR-570698.3569.331463
HSA-MIR-4665-5P97.9167.691536
HSA-MIR-6787-5P97.5463.85457
HSA-MIR-192-3P97.5267.661001
HSA-MIR-6839-5P96.7468.291088
HSA-MIR-378J96.4466.201020
HSA-MIR-10396B-5P94.9963.57358
HSA-MIR-1908-5P94.9963.41352
HSA-MIR-663A94.9963.54378
HSA-MIR-4474-5P94.2367.95568

Functional genomics

ClinGen dosage: haploinsufficiency 3 (sufficient evidence), triplosensitivity 0 (no evidence). ClinGen Gene Dosage Map DepMap (CRISPR cell-line fitness): dependent in 18.9% of screened cell lines.

Literature-anchored findings (GeneRIF, showing 40)

  • Various fungi stimulated antimicrobial peptides through at least two different pathways requiring Relish and/or Dif. (PMID:14985331)
  • Dif and Dorsal control crucial aspects of the cellular immune response (PMID:17060622)
  • Molecular modeling was used to compare the tertiary structure of Dif with two other Drosophila proteins. (PMID:17785540)
  • Data show that the DIF and Relish complex is detectable in whole animal extracts, suggesting that this heterodimer may function in vivo to increase the spectrum and level of antimicrobial peptide production in response to different infections. (PMID:20679214)
  • DIF factor seems to be involved in the response to fungal infection after a mild cold stress and in the resistance to heat. DIF seems to have no role in the increased longevity of non-infected flies and resistance to a severe cold shock. (PMID:22791143)
  • Fasting increases survival to cold in dif mutant Drosophila melanogaster. (PMID:25663303)
  • These results, not only revealed a novel function and modulation pattern of miR-958, but also provided a new insight into the underlying molecular mechanisms of Toll signaling in regulation of innate immunity. (PMID:27974298)
  • Study shows that Drosophila miR-317 only targets Dif-Rc, but not Dif-Ra/b/d, implying that miRNAs can regulate different isoforms of an alternative splicing gene to fine tune immune responses and maintain homeostasis in post-transcriptional level. During Gram-positive bacterial infection, the overexpressed miR-317 flies have poor survival outcome suggesting that the miR-317 might play a key role in Drosophila survival. (PMID:30708026)
  • Bacterial recognition by PGRP-SA and downstream signalling by Toll/DIF sustain commensal gut bacteria in Drosophila. (PMID:35007276)
  • Interaction of lncRNA-CR33942 with Dif/Dorsal Facilitates Antimicrobial Peptide Transcriptions and Enhances Drosophila Toll Immune Responses. (PMID:35379744)
  • This paper describes the identification and characterization of the first binding partner of LKB1; the SWI/SNF chromatin remodeling protein Brg1. (PMID:11445556)
  • mutation screening at the RNA level in Peutz-Jeghers syndrome reveals complex splicing abnormalities and a novel mRNA isoform (STK11 c.597(insertion mark)598insIVS4 (PMID:11668633)
  • STK11/LKB1 gene in IPMNs (intraductal papillary-mucinous neoplasms of the pancreas) with LOH revealed a germline mutation in one IPMN that arose in a patient with PJS (Peutz-Jeghers Syndrome) and a somatic mutation in 1 of the 20 sporadic IPMNs. (PMID:11733352)
  • LKB1 is phosphorylated at Ser(431), Ser(31), Ser(325) and Thr(366) (PMID:11853558)
  • Inactivation of LKB1/STK11 is a common event in adenocarcinomas of the lung. (PMID:12097271)
  • This reports for the first time the presence of frequent LKB1 inactivating mutations in human lung cancer. (PMID:12097271)
  • polyps arising in the Lkb1+/- mice were found to be hamartomas that were histologically indistinguishable from polyps resected from PJS patients, indicating that Lkb1+/- mice model human PJS polyposis (PMID:12218179)
  • These observations provide the first link between ATM and LKB1 and suggest that ATM could regulate LKB1 (PMID:12234250)
  • Results show that Cdc37 and heat shock protein 90 bind specifically to the kinase domain of LKB1. (PMID:12489981)
  • mutations in the STK11 gene characterize minimal deviation adenocarcinoma of the uterine cervix (PMID:12533684)
  • LKB1/STK11 variants in a group of Peutz-Jeghers syndrome Italian patients lack serine/threonine kinase activity, in contrast to wild type LKB1/STK11, and are unable to suppress the growth of melanoma G361 cells in vitro. (PMID:12552571)
  • identification and characterization of an LKB1-specific adaptor protein and substrate, STRAD (STe20 Related ADaptor); results imply that STRAD plays a key role in regulating the tumour suppressor activities of LKB1 (PMID:12805220)
  • LKB1 kinase, which is associated with Peutz-Jeghers cancer-susceptibility syndrome, phosphorylates and activates AMPK in vitro. (PMID:12847291)
  • results show that LKB1 can direct the phosphorylation of the serine-threonine kinase PAR1A (PMID:12879020)
  • LKB1 inactivation may play a role in the critical transition from premalignant to malignant tumor growth (PMID:12912948)
  • LKB1-induced apoptosis is p53 independent but might be p73-mediated in pancreatic tumors (PMID:14511408)
  • heteromeric complex containing the molecular chaperones Hsp90 and Cdc37/p50 interacts with the kinase domain of LKB1 (PMID:14668798)
  • LKB1 functions as a master upstream protein kinase, regulating AMPK-related kinases as well as AMPK. (PMID:14976552)
  • LKB1 directly phosphorylates Thr-172 of AMPKalpha in vitro and activates its kinase activity. (PMID:14985505)
  • our results reveal that several important factors contribute to LKB1-mediated carcinogenesis in LADs, confirming previous observations and identifying new putative pathways that should help to elucidate the biological role of LKB1. (PMID:15077168)
  • the risk for developing cancer at ages 20, 30, 40, 50, 60, and 70 years was 1%, 3%, 19%, 32%, 63%, and 81%, respectively (PMID:15188174)
  • LKB1, the gene mutated in Peutz-Jeghers syndrome (PJS), acts as a tumor suppressor by activating TSC2, the gene mutated in Tuberous sclerosis complex (PMID:15231735)
  • Cases in which Peutz-Jegher Syndrome patients did not harbor mutation of STK11. (PMID:15287029)
  • IGF-1 induces AMPK-alpha subunit phosphorylation via an ATM-dependent and LKB1-independent pathway (PMID:15485651)
  • Mutations in LKB1 cause the inherited Peutz-Jeghers syndrome. (PMID:15561763)
  • The unusual splicing defect of LKB1 associated with this Peutz-Jeghers syndrome-causing mutation uncovers differences in splice-site recognition between the major and minor pre-mRNA splicing pathways (PMID:15608654)
  • report of a novel truncating-type germline mutation of the STK11 gene in a Peutz-Jeghers syndrome patient with gastric cancer (PMID:15617552)
  • LKB1 mutants, in Peutz-Jeghers syndrome, fail to activate GSK-3beta, preventing it from inhibiting Wnt signaling. (PMID:15731909)
  • promoter element sequence changes in STK11/LKB1 are unlikely to contribute to Peutz-Jeghers syndrome (PMID:15774015)
  • LKB1 is crucial for the regulation of cell polarity (PMID:15800014)

Cross-species orthologs

5 orthologs

OrganismSymbolGene ID
danio_reriostk11ENSDARG00000046074
mus_musculusStk11ENSMUSG00000003068
rattus_norvegicusStk11ENSRNOG00000014287
drosophila_melanogasterLkb1FBGN0038167
caenorhabditis_elegansWBGENE00003919

Paralogs (22): CAMKK1 (ENSG00000004660), CAMK1G (ENSG00000008118), CAMK2B (ENSG00000058404), CAMK2A (ENSG00000070808), MYLK2 (ENSG00000101306), CAMKK2 (ENSG00000110931), STK33 (ENSG00000130413), PNCK (ENSG00000130822), DCLK1 (ENSG00000133083), CAMK1 (ENSG00000134072), MYLK3 (ENSG00000140795), CAMK2D (ENSG00000145349), MYLK4 (ENSG00000145949), PSKH2 (ENSG00000147613), CAMK2G (ENSG00000148660), PHKG2 (ENSG00000156873), PSKH1 (ENSG00000159792), DCLK3 (ENSG00000163673), CAMKV (ENSG00000164076), PHKG1 (ENSG00000164776), DCLK2 (ENSG00000170390), CAMK1D (ENSG00000183049)

Protein

Protein identifiers

Serine/threonine-protein kinase STK11Q15831 (reviewed: Q15831)

Alternative names: Liver kinase B1, Renal carcinoma antigen NY-REN-19

All UniProt accessions (12): Q15831, A0A087WT72, A0A0S2Z4D1, A0A1B0GUW2, A0AAQ5BHS0, A0AAQ5BHS4, A0AAQ5BHU8, A0AAQ5BHW9, A0AAQ5BHX7, A0AAQ5BHX9, K7EMR0, K7EQN8

UniProt curated annotations — full annotation on UniProt →

Function. Tumor suppressor serine/threonine-protein kinase that controls the activity of AMP-activated protein kinase (AMPK) family members, thereby playing a role in various processes such as cell metabolism, cell polarity, apoptosis and DNA damage response. Acts by phosphorylating the T-loop of AMPK family proteins, thus promoting their activity: phosphorylates PRKAA1, PRKAA2, BRSK1, BRSK2, MARK1, MARK2, MARK3, MARK4, NUAK1, NUAK2, SIK1, SIK2, SIK3 and SNRK but not MELK. Also phosphorylates non-AMPK family proteins such as STRADA, PTEN and possibly p53/TP53. Acts as a key upstream regulator of AMPK by mediating phosphorylation and activation of AMPK catalytic subunits PRKAA1 and PRKAA2 and thereby regulates processes including: inhibition of signaling pathways that promote cell growth and proliferation when energy levels are low, glucose homeostasis in liver, activation of autophagy when cells undergo nutrient deprivation, and B-cell differentiation in the germinal center in response to DNA damage. Also acts as a regulator of cellular polarity by remodeling the actin cytoskeleton. Required for cortical neuron polarization by mediating phosphorylation and activation of BRSK1 and BRSK2, leading to axon initiation and specification. Involved in DNA damage response: interacts with p53/TP53 and recruited to the CDKN1A/WAF1 promoter to participate in transcription activation. Able to phosphorylate p53/TP53; the relevance of such result in vivo is however unclear and phosphorylation may be indirect and mediated by downstream STK11/LKB1 kinase NUAK1. Also acts as a mediator of p53/TP53-dependent apoptosis via interaction with p53/TP53: translocates to the mitochondrion during apoptosis and regulates p53/TP53-dependent apoptosis pathways. Regulates UV radiation-induced DNA damage response mediated by CDKN1A. In association with NUAK1, phosphorylates CDKN1A in response to UV radiation and contributes to its degradation which is necessary for optimal DNA repair. Has a role in spermiogenesis.

Subunit / interactions. Catalytic component of a trimeric complex composed of STK11/LKB1, STRAD (STRADA or STRADB) and CAB39/MO25 (CAB39/MO25alpha or CAB39L/MO25beta): the complex tethers STK11/LKB1 in the cytoplasm and stimulates its catalytic activity. Found in a ternary complex composed of SMAD4, STK11/LKB1 and STK11IP. Interacts with p53/TP53, SMAD4, STK11IP and WDR6. Interacts with NR4A1. Interacts with NISCH; this interaction may increase STK11 activity. Interacts with PTEN; leading to PTEN phosphorylation. Interacts with SIRT1; the interaction deacetylates STK11. Interacts with CDKN1A.

Subcellular location. Nucleus. Cytoplasm. Membrane. Mitochondrion Nucleus.

Tissue specificity. Ubiquitously expressed. Strongest expression in testis and fetal liver.

Post-translational modifications. Phosphorylated by ATM at Thr-363 following ionizing radiation (IR). Phosphorylation at Ser-428 by RPS6KA1 and/or some PKA is required to inhibit cell growth. Phosphorylation at Ser-428 is also required during neuronal polarization to mediate phosphorylation of BRSK1 and BRSK2. Phosphorylation by PKC/PRKCZ at Ser-399 in isoform 2 promotes metformin (or peroxynitrite)-induced nuclear export of STK11 and activation of AMPK. UV radiation-induced phosphorylation at Thr-363 mediates CDKN1A degradation. Acetylated. Deacetylation at Lys-48 enhances cytoplasmic localization and kinase activity in vitro.

Disease relevance. Peutz-Jeghers syndrome (PJS) [MIM:175200] An autosomal dominant disorder characterized by melanocytic macules of the lips, multiple gastrointestinal hamartomatous polyps and an increased risk for various neoplasms, including gastrointestinal cancer. The disease is caused by variants affecting the gene represented in this entry. Testicular germ cell tumor (TGCT) [MIM:273300] A common malignancy in males representing 95% of all testicular neoplasms. TGCTs have various pathologic subtypes including: unclassified intratubular germ cell neoplasia, seminoma (including cases with syncytiotrophoblastic cells), spermatocytic seminoma, embryonal carcinoma, yolk sac tumor, choriocarcinoma, and teratoma. The gene represented in this entry may be involved in disease pathogenesis. Defects in STK11 are associated with some sporadic cancers, especially lung cancers. Frequently mutated and inactivated in non-small cell lung cancer (NSCLC). Defects promote lung cancerigenesis process, especially lung cancer progression and metastasis. Confers lung adenocarcinoma the ability to trans-differentiate into squamous cell carcinoma. Also able to promote lung cancer metastasis, via both cancer-cell autonomous and non-cancer-cell autonomous mechanisms.

Activity regulation. Activated by forming a complex with STRAD (STRADA or STRADB) and CAB39/MO25 (CAB39/MO25alpha or CAB39L/MO25beta): STRADA (or STRADB)-binding promotes a conformational change of STK11/LKB1 in an active conformation, which is stabilized by CAB39/MO25alpha (or CAB39L/MO25beta) interacting with the STK11/LKB1 activation loop. Sequestration in the nucleus by NR4A1 prevents it from phosphorylating and activating cytoplasmic AMPK.

Similarity. Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. LKB1 subfamily.

Isoforms (2)

UniProt IDNamesCanonical?
Q15831-11, LKB1(L)yes
Q15831-22, LKB1(S)

RefSeq proteins (2): NP_000446, NP_001394184 (=MANE)

Domains & families (InterPro)

IDNameType
IPR000719Prot_kinase_domDomain
IPR008271Ser/Thr_kinase_ASActive_site
IPR011009Kinase-like_dom_sfHomologous_superfamily
IPR017441Protein_kinase_ATP_BSBinding_site
IPR039154LKB1_cDomain

Pfam: PF00069

Enzyme classification (BRENDA):

  • EC 2.7.11.1 — non-specific serine/threonine protein kinase (BRENDA: 71 organisms, 682 substrates, 228 inhibitors, 23 Km, 6 kcat entries)

Substrate kinetics (BRENDA)

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

SubstrateKm (mM)Measurements
ATP0.0007–0.6411
KKRAARATSNVFA0.013–0.0453
PAH1 PHOSPHATIDATE PHOSPHATASE0.00022
RRRLSSLRA0.0036–0.00372
GTP0.461
KKRAARASSNVFA0.021
LYS-LYS-PHE-ASN-ARG-THR-LEU-SER-VAL-ALA0.00931
MYELIN BASIC PROTEIN0.1451

Catalyzed reactions (Rhea), 2 shown:

  • L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+) (RHEA:17989)
  • L-threonyl-[protein] + ATP = O-phospho-L-threonyl-[protein] + ADP + H(+) (RHEA:46608)

UniProt features (123 total): sequence variant 50, modified residue 18, helix 15, mutagenesis site 12, strand 10, turn 4, region of interest 3, binding site 2, lipid moiety-binding region 2, compositionally biased region 2, chain 1, propeptide 1, domain 1, splice variant 1, active site 1

Structure

Experimental structures (PDB)

4 structures.

PDBMethodResolution (Å)
2WTKX-RAY DIFFRACTION2.65
8VSUELECTRON MICROSCOPY2.86
4ZDRX-RAY DIFFRACTION2.9
5WXNX-RAY DIFFRACTION2.93

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q15831-F179.270.61

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): 176 (proton acceptor)

Ligand- & substrate-binding residues (2): 78; 55–63

Post-translational modifications (20): 31, 44, 399, 48, 96, 97, 189, 296, 311, 325, 336, 363, 401, 416, 423, 428, 430, 431, 418, 430

Mutagenesis-validated functional residues (12):

PositionPhenotype
44no effect on kinase activity.
48no effect on basal nucleocytoplasmic localization, but fails to translocate to the cytoplasm when coexpressed with sirt1
48enhanced phosphorylation at thr-336 and ser-428, enhanced cytoplasmic localization and increased kinase activity.
74impaired formation of a heterotrimeric complex with strada and cab39; when associated with a-204.
78loss of kinase activity, leading to greatly reduced autophosphorylation.
78loss of kinase activity, leading to reduced autophosphorylation and acting as a dominant-negative mutant.
96no effect on kinase activity.
97no effect on kinase activity.
189reduced phosphorylation.
194loss of kinase activity.
204no effect. impaired formation of a heterotrimeric complex with strada and cab39; when associated with a-74.
428no effect on kinase activity.

Function

Pathways and Gene Ontology

Reactome pathways

14 pathways

IDPathway
R-HSA-163680AMPK inhibits chREBP transcriptional activation activity
R-HSA-380972Energy dependent regulation of mTOR by LKB1-AMPK
R-HSA-6804756Regulation of TP53 Activity through Phosphorylation
R-HSA-9614657FOXO-mediated transcription of cell death genes
R-HSA-1430728Metabolism
R-HSA-162582Signal Transduction
R-HSA-163685Integration of energy metabolism
R-HSA-165159MTOR signalling
R-HSA-212436Generic Transcription Pathway
R-HSA-3700989Transcriptional Regulation by TP53
R-HSA-5633007Regulation of TP53 Activity
R-HSA-73857RNA Polymerase II Transcription
R-HSA-74160Gene expression (Transcription)
R-HSA-9614085FOXO-mediated transcription

MSigDB gene sets: 493 (showing top): GOBP_NEGATIVE_REGULATION_OF_EPITHELIAL_CELL_PROLIFERATION, GOBP_DENDRITE_DEVELOPMENT, GOBP_NEGATIVE_REGULATION_OF_REPRODUCTIVE_PROCESS, GOBP_REGULATION_OF_CELLULAR_RESPONSE_TO_GROWTH_FACTOR_STIMULUS, GOBP_RESPONSE_TO_IONIZING_RADIATION, GOBP_REGULATION_OF_AUTOPHAGY, KEGG_ADIPOCYTOKINE_SIGNALING_PATHWAY, GOBP_ESTABLISHMENT_OR_MAINTENANCE_OF_CELL_POLARITY, GOBP_REGULATION_OF_MICROTUBULE_BASED_PROCESS, GOBP_NEURON_PROJECTION_EXTENSION, GOBP_REGULATION_OF_PHOSPHORYLATION, GOBP_VESICLE_LOCALIZATION, GOBP_CELLULAR_RESPONSE_TO_UV, GOBP_THYMIC_T_CELL_SELECTION, GOBP_CELLULAR_RESPONSE_TO_LIGHT_STIMULUS

GO Biological Process (44): regulation of cell growth (GO:0001558), tissue homeostasis (GO:0001894), vasculature development (GO:0001944), protein phosphorylation (GO:0006468), protein dephosphorylation (GO:0006470), autophagy (GO:0006914), DNA damage response (GO:0006974), signal transduction (GO:0007165), spermatogenesis (GO:0007283), axonogenesis (GO:0007409), negative regulation of cell population proliferation (GO:0008285), response to ionizing radiation (GO:0010212), positive regulation of autophagy (GO:0010508), peptidyl-threonine phosphorylation (GO:0018107), establishment of cell polarity (GO:0030010), regulation of Wnt signaling pathway (GO:0030111), negative regulation of cell growth (GO:0030308), positive regulation of transforming growth factor beta receptor signaling pathway (GO:0030511), activation of protein kinase activity (GO:0032147), protein localization to nucleus (GO:0034504), glucose homeostasis (GO:0042593), anoikis (GO:0043276), positive thymic T cell selection (GO:0045059), protein autophosphorylation (GO:0046777), regulation of dendrite morphogenesis (GO:0048814), positive regulation of axonogenesis (GO:0050772), T cell receptor signaling pathway (GO:0050852), Golgi localization (GO:0051645), regulation of cell cycle (GO:0051726), regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction (GO:0051896), epithelial cell proliferation involved in prostate gland development (GO:0060767), negative regulation of epithelial cell proliferation involved in prostate gland development (GO:0060770), G1 to G0 transition (GO:0070314), cellular response to UV-B (GO:0071493), intrinsic apoptotic signaling pathway by p53 class mediator (GO:0072332), negative regulation of canonical Wnt signaling pathway (GO:0090090), dendrite extension (GO:0097484), negative regulation of cold-induced thermogenesis (GO:0120163), positive regulation of protein localization to nucleus (GO:1900182), positive regulation of vesicle transport along microtubule (GO:1901610)

GO Molecular Function (13): magnesium ion binding (GO:0000287), p53 binding (GO:0002039), protein serine/threonine kinase activity (GO:0004674), ATP binding (GO:0005524), LRR domain binding (GO:0030275), protein kinase activator activity (GO:0030295), protein serine kinase activity (GO:0106310), nucleotide binding (GO:0000166), protein kinase activity (GO:0004672), protein binding (GO:0005515), kinase activity (GO:0016301), transferase activity (GO:0016740), metal ion binding (GO:0046872)

GO Cellular Component (11): nucleus (GO:0005634), nucleoplasm (GO:0005654), cytoplasm (GO:0005737), mitochondrion (GO:0005739), centrosome (GO:0005813), cytosol (GO:0005829), cilium (GO:0005929), membrane (GO:0016020), extracellular exosome (GO:0070062), intracellular protein-containing complex (GO:0140535), serine/threonine protein kinase complex (GO:1902554)

Reactome top-level categories

Rollup of top-10 pathways:

CategoryPathways
Generic Transcription Pathway2
Integration of energy metabolism1
MTOR signalling1
Regulation of TP53 Activity1
FOXO-mediated transcription1
Metabolism1
Signal Transduction1
RNA Polymerase II Transcription1
Transcriptional Regulation by TP531
Gene expression (Transcription)1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure4
protein kinase activity3
cell growth2
protein modification process2
negative regulation of cellular process2
intracellular membrane-bounded organelle2
cytoplasm2
regulation of growth1
regulation of cellular component organization1
multicellular organismal-level homeostasis1
anatomical structure homeostasis1
system development1
circulatory system development1
phosphorylation1
dephosphorylation1
catabolic process1
transmembrane transport1
process utilizing autophagic mechanism1
cellular response to stress1
cell communication1
cellular process1
signaling1
regulation of cellular process1
cellular response to stimulus1
developmental process involved in reproduction1
male gamete generation1
cell morphogenesis involved in neuron differentiation1
neuron projection morphogenesis1
axon development1
cell population proliferation1
regulation of cell population proliferation1
response to radiation1
autophagy1
positive regulation of catabolic process1
regulation of autophagy1
protein phosphorylation1
peptidyl-threonine modification1
establishment or maintenance of cell polarity1
regulation of signal transduction1
Wnt signaling pathway1

Protein interactions and networks

STRING

4480 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
STK11CAB39Q9Y376999
STK11STRADAQ7RTN6999
STK11AXIN1O15169991
STK11PTENP60484971
STK11CAB39LQ9H9S4963
STK11STK11IPQ8N1F8878
STK11KRASP01116872
STK11TP53P04637853
STK11ATMQ13315846
STK11TSC2P49815845
STK11PALB2Q86YC2843
STK11SMAD4Q13485840
STK11STRADBQ9C0K7839
STK11BRCA2P51587831
STK11PIK3CAP42336817

IntAct

200 interactions, top by confidence:

ABTypeScore
STRADASTK11psi-mi:“MI:0915”(physical association)0.960
STK11STRADApsi-mi:“MI:0217”(phosphorylation reaction)0.960
STRADASTK11psi-mi:“MI:0403”(colocalization)0.960
STK11STRADApsi-mi:“MI:0914”(association)0.960
STK11STRADApsi-mi:“MI:2364”(proximity)0.960
STK11STRADApsi-mi:“MI:0915”(physical association)0.960
STK11CAB39psi-mi:“MI:0915”(physical association)0.950
CAB39STK11psi-mi:“MI:0914”(association)0.950
CAB39STK11psi-mi:“MI:0915”(physical association)0.950
CAB39STK11psi-mi:“MI:2364”(proximity)0.950
STRADBSTK11psi-mi:“MI:0403”(colocalization)0.920
STRADBSTK11psi-mi:“MI:0915”(physical association)0.920
STK11STRADBpsi-mi:“MI:0915”(physical association)0.920
STK11FKBP5psi-mi:“MI:0914”(association)0.910
FKBP5STK11psi-mi:“MI:0915”(physical association)0.910
STK11CDC37psi-mi:“MI:0915”(physical association)0.850
INO80ETFPTpsi-mi:“MI:0914”(association)0.790
HSP90AB1STK11psi-mi:“MI:0915”(physical association)0.780

BioGRID (466): STK11 (Biochemical Activity), SIRT1 (Affinity Capture-Western), STK11 (Affinity Capture-Western), ETV4 (Affinity Capture-Western), ETV4 (Two-hybrid), PRKAA1 (Two-hybrid), ETV4 (Biochemical Activity), PRKAA1 (Biochemical Activity), SPDEF (Two-hybrid), STK11 (Two-hybrid), CAB39 (Affinity Capture-MS), CCDC136 (Affinity Capture-MS), COPS3 (Affinity Capture-MS), COPS4 (Affinity Capture-MS), FKBP5 (Affinity Capture-MS)

ESM2 similar proteins: A0A8I5ZNK2, B1H3E1, D3ZSZ3, D4ABL6, D4AE59, E1BMN8, E2QWQ2, E9PV86, O54804, O54949, O70293, P15209, P24786, P33497, P43250, P43291, P43292, P46892, P49137, P49138, P85298, P97711, Q03351, Q0GGW5, Q15831, Q16644, Q3SYZ2, Q3UMW7, Q5N942, Q5XIS9, Q63604, Q66H84, Q6ZI44, Q75H77, Q75V57, Q7XKA8, Q7XQP4, Q7Y0B9, Q8BZ03, Q8CIW5

Diamond homologs: A2XFF4, A3B529, A6ZU08, A8WYE4, A8X0C4, B3DL84, B4J3F1, B4KYX8, B4LDJ6, B8BBT7, D4AE59, F1QGZ6, O08679, O14965, O22932, O55099, O59790, O70126, O88445, O88831, P25341, P25389, P32801, P38990, P43637, P50526, P54645, P59241, P92958, P97756, Q05512, Q0D4B2, Q0GGW5, Q0JI49, Q10SC8, Q12263, Q13131, Q14680, Q15831, Q16W24

SIGNOR signaling

69 interactions.

AEffectBMechanism
STK11“up-regulates activity”STK11phosphorylation
STK11“up-regulates activity”MARK3phosphorylation
STK11“down-regulates activity”STK11phosphorylation
STK11up-regulatesPRKAA2phosphorylation
STK11down-regulatesGSK3B
STK11up-regulatesBRSK1phosphorylation
STK11up-regulatesBRSK2phosphorylation
STK11up-regulatesMARK1phosphorylation
STK11up-regulatesMARK2phosphorylation
STK11up-regulatesMARK4phosphorylation
STK11up-regulatesNUAK1phosphorylation
STK11up-regulatesNUAK2phosphorylation
STK11up-regulatesSIK1phosphorylation
STK11up-regulatesSIK2phosphorylation
STK11up-regulatesSIK3phosphorylation
STK11up-regulatesMELKphosphorylation
STK11up-regulatesTP53phosphorylation
PRKCZ“up-regulates activity”STK11phosphorylation
STK11“down-regulates activity”PTENphosphorylation
STK11down-regulatesPAK1phosphorylation
PRKCZup-regulatesSTK11phosphorylation

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 133 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
Energy dependent regulation of mTOR by LKB1-AMPK518.9×8e-04
MTOR signalling717.9×4e-05
RAF activation516.1×1e-03
HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand713.0×2e-04
Translocation of SLC2A4 (GLUT4) to the plasma membrane811.9×9e-05
TP53 Regulates Metabolic Genes78.7×1e-03
Transcriptional and post-translational regulation of MITF-M expression and activity58.6×7e-03
Programmed Cell Death68.4×4e-03

GO biological processes:

GO termPartnersFoldFDR
intracellular protein localization97.5×1e-03
protein stabilization147.5×7e-06
protein folding86.6×5e-03
protein phosphorylation126.5×2e-04
positive regulation of apoptotic process104.5×9e-03
negative regulation of apoptotic process133.6×8e-03

Disease & clinical

Cancer significance

From intOGen — cancer-driver classification: loss-of-function (tumor-suppressor-like) across 7 cancer types — ANSC, CEAD, CESC, CHOL, LUAD, NSCLC, WDTC.

Clinical variants and AI predictions

ClinVar

2818 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic310
Likely pathogenic80
Uncertain significance1041
Likely benign578
Benign102

Top pathogenic / likely-pathogenic (30)

Variant IDHGVSClassification
1068630NM_000455.5(STK11):c.734+1G>APathogenic
1069286NM_000455.5(STK11):c.889_890del (p.Arg297fs)Pathogenic
1071855NC_000019.9:g.(?1218406)(1218509_?)delPathogenic
1072061NM_000455.5(STK11):c.788T>A (p.Leu263Ter)Pathogenic
1072081NC_000019.9:g.(?1221107)(1227749_?)delPathogenic
1073428NM_000455.5(STK11):c.354_362del (p.Tyr118_Glu121delinsTer)Pathogenic
1073558NM_000455.5(STK11):c.640_653del (p.Gln214fs)Pathogenic
1073837NC_000019.9:g.(?1206913)(1207212_?)delPathogenic
1073838NC_000019.9:g.(?1206903)(1207212_?)delPathogenic
1073839NC_000019.9:g.(?1220366)(1220510_?)delPathogenic
1073840NC_000019.9:g.(?1218406)(1219422_?)delPathogenic
1073934NM_000455.5(STK11):c.332_333insG (p.Ile111fs)Pathogenic
1075652NM_000455.5(STK11):c.291-1G>CPathogenic
1075653NM_000455.5(STK11):c.334C>T (p.Gln112Ter)Pathogenic
1075654NM_000455.5(STK11):c.464+1dupPathogenic
1075763NM_000455.5(STK11):c.608_627del (p.Pro203fs)Pathogenic
1075905NC_000019.9:g.(?1206907)(1226652_?)delPathogenic
1076021NM_000455.5(STK11):c.145dup (p.Tyr49fs)Pathogenic
1184620NM_000455.5(STK11):c.812del (p.Ser271fs)Pathogenic
1297689NM_000455.5(STK11):c.921-12G>APathogenic
1342166NM_000455.5(STK11):c.735-6A>GPathogenic
1350425NC_000019.9:g.(?1206913)(1219422_?)delPathogenic
1359304NM_000455.5(STK11):c.841_842dup (p.Leu282fs)Pathogenic
1359873NM_000455.5(STK11):c.464+1G>TPathogenic
1360522NM_000455.5(STK11):c.597+2T>APathogenic
1370818NM_000455.5(STK11):c.290+1G>CPathogenic
1376969NM_000455.5(STK11):c.583del (p.Leu195fs)Pathogenic
1378041NM_000455.5(STK11):c.19C>T (p.Gln7Ter)Pathogenic
1379620NM_000455.5(STK11):c.792_793insTTTTTTTTTTTTTTTTTTTTNNNNNNNNNNGCTCTCCTGACCTCGTGATCCGCCCGCCTCGGCCTCCCACAGTGCTGTGATTACAGGCGTGAGCCACCGCGCCCGGCCTACAAGTTGTTT (p.Glu265delinsPhePhePhePhePhePheXaaXaaXaaXaaAlaLeuLeuThrSerTer)Pathogenic
1404101NM_000455.5(STK11):c.669_670del (p.Glu223fs)Pathogenic

SpliceAI

2087 predictions. Top by Δscore:

VariantEffectΔscore
19:1207200:AGAA:Adonor_gain1.0000
19:1207201:GAA:Gdonor_gain1.0000
19:1207201:GAAG:Gdonor_gain1.0000
19:1207202:AA:Adonor_gain1.0000
19:1207204:G:GGdonor_gain1.0000
19:1218411:TCCCA:Tacceptor_loss1.0000
19:1218412:CCCAG:Cacceptor_loss1.0000
19:1218413:CCAG:Cacceptor_loss1.0000
19:1218414:CAGGG:Cacceptor_loss1.0000
19:1218415:A:AGacceptor_gain1.0000
19:1218415:A:ATacceptor_loss1.0000
19:1218415:AG:Aacceptor_gain1.0000
19:1218415:AGG:Aacceptor_gain1.0000
19:1218416:G:GGacceptor_gain1.0000
19:1218416:GG:Gacceptor_gain1.0000
19:1218416:GGG:Gacceptor_gain1.0000
19:1218416:GGGA:Gacceptor_gain1.0000
19:1218416:GGGAA:Gacceptor_gain1.0000
19:1220368:CGCA:Cacceptor_loss1.0000
19:1220369:GCA:Gacceptor_loss1.0000
19:1220370:CAGGT:Cacceptor_loss1.0000
19:1220372:G:GTacceptor_loss1.0000
19:1220470:G:GAdonor_gain1.0000
19:1220507:T:Adonor_loss1.0000
19:1220714:CCCT:Cdonor_gain1.0000
19:1220715:CCT:Cdonor_gain1.0000
19:1220716:CT:Cdonor_gain1.0000
19:1220718:G:GGdonor_gain1.0000
19:1220718:GT:Gdonor_loss1.0000
19:1220719:T:Gdonor_loss1.0000

AlphaMissense

2859 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
19:1207062:T:CL50P1.000
19:1207067:G:AG52R1.000
19:1207067:G:CG52R1.000
19:1207067:G:TG52W1.000
19:1207068:G:AG52E1.000
19:1207079:G:AG56R1.000
19:1207079:G:CG56R1.000
19:1207080:G:AG56E1.000
19:1207085:G:AG58S1.000
19:1207085:G:CG58R1.000
19:1207085:G:TG58C1.000
19:1207086:G:AG58D1.000
19:1207094:G:CG61R1.000
19:1207095:G:AG61D1.000
19:1207100:G:AV63M1.000
19:1207103:A:GK64E1.000
19:1207105:G:CK64N1.000
19:1207105:G:TK64N1.000
19:1207113:T:CL67P1.000
19:1207134:G:CR74T1.000
19:1207134:G:TR74M1.000
19:1207135:G:CR74S1.000
19:1207135:G:TR74S1.000
19:1207140:C:AA76D1.000
19:1207143:T:AV77D1.000
19:1207145:A:CK78Q1.000
19:1207145:A:GK78E1.000
19:1207147:G:CK78N1.000
19:1207147:G:TK78N1.000
19:1207149:T:AI79N1.000

dbSNP variants (sampled 300 via entrez): RS1000190042 (19:1213744 G>A), RS1000210972 (19:1222536 C>A,T), RS1000261203 (19:1218272 C>T), RS1000284683 (19:1213585 C>T), RS1000508153 (19:1207906 C>T), RS1000619039 (19:1212685 T>C), RS1000726326 (19:1212011 G>A), RS1000755581 (19:1216785 T>G), RS1000798577 (19:1211831 A>T), RS1000831724 (19:1227080 G>A), RS1000885403 (19:1224210 G>A,T), RS1000953655 (19:1224682 C>T), RS1000988286 (19:1226910 G>A), RS1001000431 (19:1217292 C>T), RS1001026620 (19:1207766 C>T)

Disease associations

OMIM: gene MIM:602216 | disease phenotypes: MIM:175200, MIM:155600, MIM:273300, MIM:260350, MIM:167000, MIM:175100, MIM:613659, MIM:268210, MIM:131100, MIM:612555, MIM:617146

GenCC curated gene-disease

DiseaseClassificationInheritance
Peutz-Jeghers syndromeDefinitiveAutosomal dominant
familial pancreatic carcinomaDefinitiveAutosomal dominant
familial ovarian cancerNo Known Disease RelationshipUnknown

ClinGen Gene-Disease Validity (2)

Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.

DiseaseClassificationInheritance
Peutz-Jeghers syndromeDefinitiveAD
familial ovarian cancerNo Known Disease RelationshipAD

Mondo (29): Peutz-Jeghers syndrome (MONDO:0008280), melanoma, cutaneous malignant, susceptibility to, 1 (MONDO:0007963), hereditary neoplastic syndrome (MONDO:0015356), generalized juvenile polyposis/juvenile polyposis coli (MONDO:0008276), colon carcinoma (MONDO:0002032), testicular germ cell tumor (MONDO:0010108), hereditary breast ovarian cancer syndrome (MONDO:0003582), breast cancer (MONDO:0007254), breast carcinoma (MONDO:0004989), exocrine pancreatic carcinoma (MONDO:0005192), familial pancreatic carcinoma (MONDO:0015278), familial ovarian cancer (MONDO:0016248), testicular cancer (MONDO:0005447), ovarian cancer (MONDO:0008170), familial adenomatous polyposis 1 (MONDO:0021056)

Orphanet (14): Peutz-Jeghers syndrome (Orphanet:2869), Inherited cancer-predisposing syndrome (Orphanet:140162), Familial melanoma (Orphanet:618), Generalized juvenile polyposis/juvenile polyposis coli (Orphanet:329971), Germ cell tumor of testis (Orphanet:363504), Hereditary breast and/or ovarian cancer syndrome (Orphanet:145), Familial pancreatic carcinoma (Orphanet:1333), Rare carcinoma of pancreas (Orphanet:217074), Rare ovarian cancer (Orphanet:213500), Hepatoblastoma (Orphanet:449), Embryonal rhabdomyosarcoma (Orphanet:99757), Multiple endocrine neoplasia type 1 (Orphanet:652), OBSOLETE: Familial ovarian cancer (Orphanet:213517), NON RARE IN EUROPE: Melanoma (Orphanet:411533)

HPO phenotypes

69 total (30 of 69 shown, HPO-id order):

HPOTerm
HP:0000006Autosomal dominant inheritance
HP:0000027Azoospermia
HP:0000069Abnormality of the ureter
HP:0000138Ovarian cyst
HP:0000366Abnormality of the nose
HP:0000478Abnormality of the eye
HP:0000771Gynecomastia
HP:0001003Multiple lentigines
HP:0001034Hypermelanotic macule
HP:0001054Numerous nevi
HP:0001062Atypical nevus
HP:0001074Atypical nevi in non-sun exposed areas
HP:0001080Biliary tract abnormality
HP:0001217Clubbing
HP:0001442Typified by somatic mosaicism
HP:0001891Iron deficiency anemia
HP:0001903Anemia
HP:0002013Vomiting
HP:0002027Abdominal pain
HP:0002035Rectal prolapse
HP:0002086Abnormality of the respiratory system
HP:0002239Gastrointestinal hemorrhage
HP:0002576Intussusception
HP:0002584Intestinal bleeding
HP:0002664Neoplasm
HP:0002672Gastrointestinal carcinoma
HP:0002894Neoplasm of the pancreas
HP:0002898Embryonal neoplasm
HP:0003002Breast carcinoma
HP:0003581Adult onset

GWAS associations

12 associations (top):

StudyTraitp-value
GCST001282_4Psychosis in Alzheimer’s disease8.000000e-06
GCST004131_43Inflammatory bowel disease5.000000e-17
GCST004132_20Crohn’s disease1.000000e-20
GCST004627_181Lymphocyte count6.000000e-10
GCST005537_44Chronic inflammatory diseases (ankylosing spondylitis, Crohn’s disease, psoriasis, primary sclerosing cholangitis, ulcerative colitis) (pleiotropy)4.000000e-09
GCST007995_8Asthma (childhood onset)2.000000e-08
GCST010320_10PR interval3.000000e-11
GCST010321_64PR interval7.000000e-11
GCST012202_5Distal/Left-sided colorectal cancer2.000000e-08
GCST90002388_29Lymphocyte count8.000000e-22
GCST90002389_257Lymphocyte percentage of white cells4.000000e-21
GCST90002399_213Neutrophil percentage of white cells1.000000e-14

EFO canonical traits (5, from GWAS)

EFO IDTrait name
EFO:0005940psychotic symptoms
EFO:0004587lymphocyte count
EFO:0004462PR interval
EFO:0007993lymphocyte percentage of leukocytes
EFO:0007990neutrophil percentage of leukocytes

MeSH disease descriptors (12)

DescriptorNameTree numbers
D001932Brain NeoplasmsC04.588.614.250.195; C10.228.140.211; C10.551.240.250
D002294Carcinoma, Squamous CellC04.557.470.200.400; C04.557.470.700.400
D018197HepatoblastomaC04.557.435.380
D061325Hereditary Breast and Ovarian Cancer SyndromeC04.588.180.483; C04.588.322.455.431; C04.700.517; C12.050.351.500.056.630.705.431; C12.050.351.937.418.685.431; C12.100.250.056.630.705.431; C12.900.418.685.431; C16.320.700.517; C17.800.090.500.483; C19.344.410.431; C19.391.630.705.431
D008545MelanomaC04.557.465.625.650.510; C04.557.580.625.650.510; C04.557.665.510; C04.588.805.377; C17.800.882.445
D018761Multiple Endocrine Neoplasia Type 1C04.588.322.400.500; C04.651.600.500; C04.700.630.500; C16.320.700.630.500; C19.344.400.500
D009386Neoplastic Syndromes, HereditaryC04.700; C16.320.700
D010051Ovarian NeoplasmsC04.588.322.455; C12.050.351.500.056.630.705; C12.050.351.937.418.685; C12.100.250.056.630.705; C12.900.418.685; C19.344.410; C19.391.630.705
D010580Peutz-Jeghers SyndromeC04.700.633; C06.405.469.578.750; C16.320.700.667; C17.800.621.430.530.550.625
D013736Testicular NeoplasmsC04.588.322.762; C04.588.945.440.915; C12.100.500.260.937; C12.200.294.260.937; C12.200.758.409.937; C12.900.619.937; C19.344.762; C19.391.829.782
C535837Pancreatic carcinoma, familial (supp.)
C563236Testicular Germ Cell Tumor (supp.)

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (2): CHEMBL3885534 (PROTEIN COMPLEX), CHEMBL5606 (SINGLE PROTEIN)

Molecules with ChEMBL bioactivity

17 molecules (phase ≥1), by development phase (incl. off-target/promiscuous compounds). Patent mentions across the top 20 by phase: 116,890 (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
CHEMBL2035187PACRITINIB43,345
CHEMBL502835NINTEDANIB48,545
CHEMBL535SUNITINIB479,020
CHEMBL608533MIDOSTAURIN47,259
CHEMBL2103840DINACICLIB32,257
CHEMBL522892DOVITINIB34,944
CHEMBL603469LESTAURTINIB3
CHEMBL91829RUBOXISTAURIN377
CHEMBL1231124AZD-148021,576
CHEMBL1721885SU-0148132363
CHEMBL475251R-4062762
CHEMBL572878TOZASERTIB22,998
CHEMBL1084546PF-005622711399
CHEMBL1908397KW-24491622
CHEMBL3128043PF-037583091233
CHEMBL3545085XL-2281936

Clinical evidence (CIViC)

Drug × variant × indication: 11 predictive associations from 12 curated evidence items; also 2 predisposing, 1 prognostic.

VariantTherapyIndicationEffectLevelCIViC
STK11 MutationVistusertibLung Non-small Cell CarcinomaSensitivity/ResponseCIViC BEID12514
STK11 MutationChemoradiotherapyLung Non-small Cell CarcinomaSensitivity/ResponseCIViC BEID12911
STK11 MutationCisplatin/Pembrolizumab/Pemetrexed RegimenLung Non-small Cell CarcinomaResistanceCIViC BEID12338
STK11 MutationRadiation TherapyLung Non-small Cell CarcinomaResistanceCIViC BEID12912
STK11 MutationNivolumab + Atezolizumab + PembrolizumabLung AdenocarcinomaResistanceCIViC BEID6441
STK11 D194EEverolimusPancreatic CancerSensitivity/ResponseCIViC CEID1617
STK11 LossSirolimusPeutz-Jeghers SyndromeSensitivity/ResponseCIViC DEID1618 +1
STK11 LossRoflumilastPancreatic Ductal AdenocarcinomaSensitivity/ResponseCIViC DEID12555
STK11 LossEverolimus + SirolimusLung Non-small Cell CarcinomaSensitivity/ResponseCIViC DEID1620
STK11 UnderexpressionSB202190Prostate CancerSensitivity/ResponseCIViC DEID751
STK11 LossSelumetinib + DocetaxelLung Non-small Cell CarcinomaResistanceCIViC DEID1144

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

GtoPdb / IUPHAR curated pharmacology

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

Target class: enzyme — LKB subfamily

Binding affinities (BindingDB)

6 measured of 6 human assays (6 total across all organisms); most potent 6 below. Values come from heterogeneous assays and are not directly comparable.

LigandMeasureValue
StaurosporineKD1.7 nM
PKC-412KD190 nM
(3Z)-4-amino-5-fluoro-3-[5-(4-methylpiperazino)-1,3-dihydrobenzimidazol-2-ylidene]carbostyrilKD520 nM
N-[4-({4-[(3-methyl-1H-pyrazol-5-yl)amino]-6-(4-methylpiperazin-1-yl)pyrimidin-2-yl}sulfanyl)phenyl]cyclopropanecarboxamideKD1100 nM
5-[(Z)-(5-fluoranyl-2-oxidanylidene-1H-indol-3-ylidene)methyl]-2,4-dimethyl-N-[(2S)-3-morpholin-4-yl-2-oxidanyl-propyl]-1H-pyrrole-3-carboxamideKD2600 nM
N-[2-(diethylamino)ethyl]-5-[(Z)-(5-fluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)methyl]-2,4-dimethyl-1H-pyrrole-3-carboxamideKD3500 nM

ChEMBL bioactivities

38 potent at pChembl≥5 of 38 total, top 28 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
8.52Kd3nMPACRITINIB
7.82Kd15.19nMCHEMBL5653589
7.75Kd18nMNINTEDANIB
7.74ED5018.01nMCHEMBL5653589
7.42Kd38nMSUNITINIB
7.31IC5048.7nMSTAUROSPORINE
7.24Kd57nMLESTAURTINIB
7.21Kd61nMSTAUROSPORINE
7.16IC5068.5nMSTAUROSPORINE
7.15IC5070.9nMSTAUROSPORINE
6.62Kd240nMKW-2449
6.51Kd310nMFEDRATINIB
6.46Kd350nMMIDOSTAURIN
6.44Kd360nMSU-014813
6.42Kd380nMCHEMBL516312
6.36Kd434nMPF-03758309
6.30Kd497nMDINACICLIB
6.20Kd626nMPF-00562271
6.15Kd714nMAZD-1480
5.89Kd1300nMTOZASERTIB
5.70Kd2013nMCHEMBL3752910
5.62ED502386nMCHEMBL3752910
5.58Kd2600nMPHA-665752
5.51Kd3077nMXL-228
5.47Kd3400nMR-406
5.43Kd3700nMDOVITINIB
5.36Kd4375nMCHEMBL3990456
5.23Kd5900nMRUBOXISTAURIN

PubChem BioAssay actives

36 with measured affinity, of 963 total; 23 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.

CompoundAssayTypeValueUnit
Pacritinib1425178: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd0.0030uM
4-methyl-3-[(2-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide2149508: Binding affinity to human STK11 incubated for 45 mins by Kinobead based pull down assaykd0.0152uM
methyl 2-hydroxy-3-[N-[4-[methyl-[2-(4-methylpiperazin-1-yl)acetyl]amino]phenyl]-C-phenylcarbonimidoyl]-1H-indole-6-carboxylate624798: Binding constant for LKB1 kinase domainkd0.0180uM
Sunitinib435909: Binding constant for full-length LKB1kd0.0380uM
(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-one1715295: Inhibition of human LKB1 using LSNLYHQGKFLQTFCGSPLYRRR as substrate by [gamma-33P]-ATP assayic500.0487uM
(15S,16S,18R)-16-hydroxy-16-(hydroxymethyl)-15-methyl-28-oxa-4,14,19-triazaoctacyclo[12.11.2.115,18.02,6.07,27.08,13.019,26.020,25]octacosa-1,6,8,10,12,20,22,24,26-nonaen-3-one507590: Binding affinity to LKB1kd0.0570uM
[4-[(E)-2-(1H-indazol-3-yl)ethenyl]phenyl]-piperazin-1-ylmethanone624798: Binding constant for LKB1 kinase domainkd0.2400uM
Fedratinib624798: Binding constant for LKB1 kinase domainkd0.3100uM
Midostaurin435909: Binding constant for full-length LKB1kd0.3500uM
5-[(Z)-(5-fluoro-2-oxo-1H-indol-3-ylidene)methyl]-N-[(2S)-2-hydroxy-3-morpholin-4-ylpropyl]-2,4-dimethyl-1H-pyrrole-3-carboxamide435909: Binding constant for full-length LKB1kd0.3600uM
N-[5-(4-cyanophenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl]pyridine-3-carboxamide389033: Binding affinity to human LKB1kd0.3800uM
N-[(1S)-2-(dimethylamino)-1-phenylethyl]-6,6-dimethyl-3-[(2-methylthieno[3,2-d]pyrimidin-4-yl)amino]-1,4-dihydropyrrolo[3,4-d]pyrazole-5-carboxamide1425178: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd0.4340uM
2-[(2S)-1-[3-ethyl-7-[(1-oxidopyridin-1-ium-3-yl)methylamino]pyrazolo[1,5-a]pyrimidin-5-yl]piperidin-2-yl]ethanol1425178: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd0.4970uM
N-methyl-N-[3-[[[2-[(2-oxo-1,3-dihydroindol-5-yl)amino]-5-(trifluoromethyl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]methanesulfonamide1425178: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd0.6260uM
5-chloro-2-N-[(1S)-1-(5-fluoropyrimidin-2-yl)ethyl]-4-N-(5-methyl-1H-pyrazol-3-yl)pyrimidine-2,4-diamine1425178: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd0.7140uM
N-[4-[4-(4-methylpiperazin-1-yl)-6-[(5-methyl-1H-pyrazol-3-yl)amino]pyrimidin-2-yl]sulfanylphenyl]cyclopropanecarboxamide435909: Binding constant for full-length LKB1kd1.3000uM
4-methyl-3-[(1-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide2149508: Binding affinity to human STK11 incubated for 45 mins by Kinobead based pull down assaykd2.0130uM
(3Z)-5-[(2,6-dichlorophenyl)methylsulfonyl]-3-[[3,5-dimethyl-4-[(2R)-2-(pyrrolidin-1-ylmethyl)pyrrolidine-1-carbonyl]-1H-pyrrol-2-yl]methylidene]-1H-indol-2-one624798: Binding constant for LKB1 kinase domainkd2.6000uM
4-N-(5-cyclopropyl-1H-pyrazol-3-yl)-6-(4-methylpiperazin-1-yl)-2-N-[(3-propan-2-yl-1,2-oxazol-5-yl)methyl]pyrimidine-2,4-diamine1425178: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd3.0770uM
6-[[5-fluoro-2-(3,4,5-trimethoxyanilino)pyrimidin-4-yl]amino]-2,2-dimethyl-4H-pyrido[3,2-b][1,4]oxazin-3-one624798: Binding constant for LKB1 kinase domainkd3.4000uM
4-amino-5-fluoro-3-[6-(4-methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1H-quinolin-2-one435909: Binding constant for full-length LKB1kd3.7000uM
2-amino-2-cyclohexyl-N-[2-(1-methylpyrazol-4-yl)-9-oxo-3,10,11-triazatricyclo[6.4.1.04,13]trideca-1,4,6,8(13),11-pentaen-6-yl]acetamide1425178: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd4.3750uM
(18S)-18-[(dimethylamino)methyl]-17-oxa-4,14,21-triazahexacyclo[19.6.1.17,14.02,6.08,13.022,27]nonacosa-1(28),2(6),7(29),8,10,12,22,24,26-nonaene-3,5-dione624798: Binding constant for LKB1 kinase domainkd5.9000uM

CTD chemical–gene interactions

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

ChemicalActions (top 5)PubMed papers
Resveratrolincreases phosphorylation, affects binding, increases reaction, decreases acetylation, increases expression (+6 more)6
STO 609affects response to substance, decreases reaction, increases phosphorylation2
dorsomorphindecreases phosphorylation, decreases reaction, increases phosphorylation2
(+)-JQ1 compoundincreases expression, increases response to substance, increases activity, increases cleavage, decreases expression (+1 more)2
Cisplatinaffects binding, increases reaction, increases degradation, increases phosphorylation, decreases reaction (+2 more)2
Metformindecreases phosphorylation, decreases reaction, affects reaction, increases phosphorylation2
aristolochic acid Iincreases expression1
FR900359increases phosphorylation1
geldanamycindecreases expression, decreases phosphorylation, decreases reaction1
thymoquinonedecreases phosphorylation, decreases reaction1
triphenyl phosphateaffects expression1
5-methyltetrahydrofolatedecreases phosphorylation, decreases reaction1
bisphenol Aincreases methylation, affects cotreatment1
beta-iononeincreases phosphorylation, affects reaction, decreases expression, increases cleavage, increases lipidation1
deoxypodophyllotoxinincreases phosphorylation1
lonidamineincreases phosphorylation1
bromopyruvatedecreases expression1
sodium arsenitedecreases expression1
3-aminobenzamidedecreases reaction, increases phosphorylation1
ginsenoside Rg2decreases reaction, increases phosphorylation1
AICA ribonucleotidedecreases phosphorylation, decreases reaction1
2-chloroethyl ethyl sulfidedecreases stability, increases degradation, increases expression, decreases reaction, decreases expression (+1 more)1
puag-haadincreases phosphorylation1
bafilomycin A1decreases expression, decreases reaction1
gastrodinincreases phosphorylation1
rubimaillinincreases phosphorylation1
N-methylisoindigotindecreases phosphorylation1
ginsenoside Reincreases phosphorylation1
N-(2-(4-bromocinnamylamino)ethyl)-5-isoquinolinesulfonamidedecreases phosphorylation, decreases reaction1
di-n-butylphosphoric acidaffects expression1

ChEMBL screening assays

244 unique, capped per target: 244 binding

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL2014944BindingInhibition of LKB1-MO25a-STRADa at 10 uMStructure-activity relationship study of beta-carboline derivatives as haspin kinase inhibitors. — Bioorg Med Chem Lett

Cellosaurus cell lines

2,031 cell lines: 2,027 cancer cell line, 2 transformed cell line, 1 hybrid cell line, 1 induced pluripotent stem cell

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

CellosaurusNameCategorySex
CVCL_0013MOLT-4Cancer cell lineMale
CVCL_0023A-549Cancer cell lineMale
CVCL_0105DU145Cancer cell lineMale
CVCL_0459NCI-H460Cancer cell lineMale
CVCL_0C87MOCHACancer cell lineMale
CVCL_1150CTV-1Cancer cell lineMale
CVCL_1475NCI-H1563Cancer cell lineMale
CVCL_1547NCI-H23Cancer cell lineMale
CVCL_1968BM-1604Cancer cell lineMale
CVCL_1D09HROBML03Cancer cell lineMale

Clinical trials (associated diseases)

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

TrialPhaseStatusTitle
NCT03781050PHASE4UNKNOWNEfficacy of Rapamycin (Sirolimus) in the Treatment of Peutz-Jeghers Syndrome
NCT06001476PHASE4UNKNOWNCold Snare Polypectomy for Small Bowel Polyps in Patients With Peutz-Jeghers Syndrome
NCT01169220PHASE4COMPLETEDBowel Preparation for Inpatient Colonoscopy
NCT01170754PHASE4COMPLETEDMiralax (PEG 3350) vs. Golytely as Bowel Preparation for Screening Colonoscopy
NCT02052557PHASE4COMPLETEDThe Effect of Exparel on Post Operative Pain and Narcotic Use After Colon Surgery
NCT02078726PHASE4COMPLETEDGlucagon Use in Colonoscopies
NCT02231203PHASE4COMPLETEDEffect of Omega-3 Fatty Acids on the Perioperative Immune Response and Erythrocyte Function
NCT02314871PHASE4COMPLETEDEffects of Different Types of Perioperative Analgesia on Minimal Residual Disease Development After Colon Cancer Surgery
NCT02746432PHASE4UNKNOWNInsulin Therapy Reduce Post-Operative Inflammatory Response After Curative Colorectal Cancer Resection: Randomization Controlled Trial
NCT02887365PHASE4UNKNOWNA Phase II Study of Tegafur-Uracil as Maintenance Chemotherapy in Patients With Stage II of Colon Cancer
NCT02937506PHASE4COMPLETEDPatient Satisfaction With Propofol for Out Patient Colonoscopy
NCT02958566PHASE4UNKNOWNMultimodal Narcotic Limited Perioperative Pain Control With Colorectal Surgery
NCT04269369PHASE4UNKNOWNImplementation of Pre-emptive Geno- and Phenotyping in 5-Fluorouracil- or Capecitabine-treated Patients
NCT04311099PHASE4COMPLETEDOptimal Peripheral Nerve Block After Minimally Invasive Colon Surgery
NCT04709770PHASE4UNKNOWNLow-volume vs High-volume Polyethylene Glycol Based Bowel Preparation for Colonoscopy in People Receiving Hemodialysis
NCT05250648PHASE4RECRUITINGClinical Trial on HIPEC With Mitomycin C in Colon Cancer Peritoneal Metastases (GECOP-MMC)
NCT02000089PHASE3RECRUITINGThe Cancer of the Pancreas Screening-5 CAPS5)Study
NCT00002968PHASE3COMPLETEDEdrecolomab in Treating Patients With Stage II Colon Cancer
NCT00003835PHASE3COMPLETEDCombination Chemotherapy in Treating Patients With Stage III Colon Cancer
NCT00003873PHASE3COMPLETEDFluorouracil With or Without Eniluracil in Treating Patients With Advanced Colorectal Cancer
NCT00004931PHASE3COMPLETEDFluorouracil Plus Leucovorin With or Without Oxaliplatin in Treating Patients With Stage II or Stage III Colon Cancer
NCT00005036PHASE3COMPLETEDIrinotecan Compared With Combination Chemotherapy in Treating Patients With Advanced Colorectal Cancer
NCT00005094PHASE3COMPLETEDCelecoxib to Prevent Colorectal Cancer in Patients Who Have Undergone Surgery to Remove Polyps
NCT00025337PHASE3COMPLETEDCombination Chemotherapy With or Without Bevacizumab Compared With Bevacizumab Alone in Treating Patients With Advanced or Metastatic Colorectal Cancer That Has Been Previously Treated
NCT00070122PHASE3TERMINATEDCombination Chemotherapy and Bevacizumab in Treating Patients With Locally Advanced, Metastatic, or Recurrent Colorectal Cancer
NCT00079274PHASE3COMPLETEDComparison of Combination Chemotherapy Regimens With or Without Cetuximab in Treating Patients Who Have Undergone Surgery For Stage III Colon Cancer
NCT00096278PHASE3COMPLETEDFluorouracil, Leucovorin, and Oxaliplatin With or Without Bevacizumab in Treating Patients Who Have Undergone Surgery for Stage II or Stage III Colon Cancer
NCT00188305PHASE3COMPLETEDA Randomized Trial of Cancer Risk and Health Education in Relatives of Colorectal Cancer Patients
NCT00195585PHASE3COMPLETEDStudy Evaluating Isovorin in Colon Cancer
NCT00217737PHASE3ACTIVE_NOT_RECRUITINGOxaliplatin, Leucovorin, and Fluorouracil With or Without Bevacizumab in Treating Patients Who Have Undergone Surgery for Stage II Colon Cancer
NCT00230646PHASE3COMPLETEDPromoting Physical Activity After Colorectal Cancer
NCT00309530PHASE3COMPLETEDRandomized Study on Adjuvant Chemotherapy and Adjuvant Chemo-Immunotherapy in Colon Carcinoma Dukes C
NCT00309543PHASE3COMPLETEDRandomized Trial on Adjuvant Chemotherapy in Colon Carcinoma Dukes B
NCT00337389PHASE3UNKNOWNPhase III Randomized Study of 5-FU, CoFactor, and Avastin vs. 5-FU, LV and Avastin for First-Line Colorectal Cancer.
NCT00467922PHASE3COMPLETEDAn Assessment of Goal-Directed Intraoperative Fluid Management in Hand Assisted Laparoscopic Colectomy
NCT00499369PHASE3TERMINATEDIrinotecan and Cetuximab With or Without Bevacizumab in Treating Patients With Metastatic Colorectal Cancer That Progressed During First-Line Therapy
NCT00509444PHASE3COMPLETEDCancer Prevention and Treatment Among African American Older Adults: Treatment Trial
NCT00646607PHASE3COMPLETEDFOLFOX-4 3months Versus 6 Months and Bevacizumab as Adjuvant Therapy for Patients With Stage II/III Colon Cancer
NCT00687830PHASE3COMPLETEDEfficacy of Morning-only Bowel Preparation for Afternoon Colonoscopy.
NCT00756548PHASE3COMPLETEDBLI850-302: BLI850 vs an Approved Active Control Bowel Preparation in Adult Subjects Undergoing Colonoscopy