PLA2G2A

gene
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Summary

PLA2G2A (phospholipase A2 group IIA, HGNC:9031) is a protein-coding gene on chromosome 1p36.13, encoding Phospholipase A2, membrane associated (P14555). Secretory calcium-dependent phospholipase A2 that primarily targets extracellular phospholipids with implications in host antimicrobial defense, inflammatory response and tissue regeneration.

The protein encoded by this gene is a member of the phospholipase A2 family (PLA2). PLA2s constitute a diverse family of enzymes with respect to sequence, function, localization, and divalent cation requirements. This gene product belongs to group II, which contains secreted form of PLA2, an extracellular enzyme that has a low molecular mass and requires calcium ions for catalysis. It catalyzes the hydrolysis of the sn-2 fatty acid acyl ester bond of phosphoglycerides, releasing free fatty acids and lysophospholipids, and thought to participate in the regulation of the phospholipid metabolism in biomembranes. Several alternatively spliced transcript variants with different 5’ UTRs have been found for this gene.

Source: NCBI Gene 5320 — RefSeq curated summary.

At a glance

  • Gene–disease (curated): colorectal cancer (Limited, GenCC)
  • GWAS associations: 8
  • Clinical variants (ClinVar): 33 total — 1 pathogenic
  • Phenotypes (HPO): 8
  • Druggable target: yes — 2 molecules with ChEMBL bioactivity
  • MANE Select transcript: NM_001395463

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:9031
Approved symbolPLA2G2A
Namephospholipase A2 group IIA
Location1p36.13
Locus typegene with protein product
StatusApproved
Ensembl geneENSG00000188257
Ensembl biotypeprotein_coding
OMIM172411
Entrez5320

Gene structure

Transcript identifiers

Ensembl transcripts: 13 — 11 protein_coding, 2 retained_intron

ENST00000375111, ENST00000400520, ENST00000461140, ENST00000482011, ENST00000496748, ENST00000649436, ENST00000907283, ENST00000907285, ENST00000907286, ENST00000907287, ENST00000932016, ENST00000962622, ENST00000962623

RefSeq mRNA: 5 — MANE Select: NM_001395463 NM_000300, NM_001161727, NM_001161728, NM_001161729, NM_001395463

CCDS: CCDS201

Canonical transcript exons

ENST00000482011 — 5 exons

ExonStartEnd
ENSE000018788581997958019979618
ENSE000035156871997838019978524
ENSE000035473431997801519978121
ENSE000036744641997873419978879
ENSE000039781091997543519975843

Expression profiles

Bgee: expression breadth ubiquitous, 220 present calls, max score 99.88.

FANTOM5 (CAGE): breadth broad, TPM avg 35.9484 / max 7355.7046, expressed in 308 samples.

FANTOM5 promoters (8 alternative TSS)

Promoter IDTPM avgSamples expressed
1071134.9006303
107090.324778
107080.240862
107060.172351
107050.163147
107120.064422
107070.055119
107100.027313

Top tissues by expression

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

TissueAnatomy IDExpression scoreQuality
palpebral conjunctivaUBERON:000181299.88gold quality
pericardiumUBERON:000240799.87gold quality
right coronary arteryUBERON:000162599.85gold quality
ileal mucosaUBERON:000033199.72gold quality
tendon of biceps brachiiUBERON:000818899.72gold quality
synovial jointUBERON:000221799.68gold quality
mucosa of stomachUBERON:000119999.67gold quality
right atrium auricular regionUBERON:000663199.66gold quality
small intestine Peyer’s patchUBERON:000345499.56gold quality
left coronary arteryUBERON:000162699.53gold quality
coronary arteryUBERON:000162199.50gold quality
rectumUBERON:000105299.47gold quality
apex of heartUBERON:000209899.44gold quality
layer of synovial tissueUBERON:000761699.38gold quality
cardiac atriumUBERON:000208199.33gold quality
jejunal mucosaUBERON:000039999.17gold quality
mucosa of sigmoid colonUBERON:000499399.00gold quality
small intestineUBERON:000210898.78gold quality
duodenumUBERON:000211498.67gold quality
omental fat padUBERON:001041498.40gold quality
mucosa of transverse colonUBERON:000499198.37gold quality
peritoneumUBERON:000235898.32gold quality
heart right ventricleUBERON:000208098.28gold quality
adipose tissue of abdominal regionUBERON:000780898.18gold quality
tibial nerveUBERON:000132397.95gold quality
popliteal arteryUBERON:000225097.71gold quality
lower esophagus muscularis layerUBERON:003583397.71gold quality
subcutaneous adipose tissueUBERON:000219097.70gold quality
tibial arteryUBERON:000761097.69gold quality
lower esophagusUBERON:001347397.65gold quality

Single-cell (SCXA)

Detected in 9 experiment(s), a significant marker in 9.

ExperimentMarker?Max mean expression
E-CURD-46yes18901.08
E-MTAB-8322yes11972.07
E-HCAD-15yes5022.42
E-MTAB-8530yes1751.05
E-MTAB-10137yes897.17
E-GEOD-135922yes47.51
E-GEOD-125970yes46.32
E-HCAD-1yes20.14
E-ANND-3no0.00

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): BCL6, CEBPA, CEBPB, CTNNB1, DNMT1, NFATC2, NFKB1, NFKB, PPARA, PPARD, RELA, STAT3, THRB

miRNA regulators (miRDB)

31 targeting PLA2G2A, 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-9-5P100.0072.282361
HSA-MIR-6755-5P99.9565.59464
HSA-MIR-4728-5P99.8569.394718
HSA-MIR-132199.8465.301811
HSA-MIR-473999.8465.251832
HSA-MIR-4756-5P99.8464.981809
HSA-MIR-76599.8468.242442
HSA-MIR-6785-5P99.8268.684428
HSA-MIR-6756-5P99.8267.972466
HSA-MIR-11181-3P99.7566.382205
HSA-MIR-674599.7465.331321
HSA-MIR-149-3P99.7268.223963
HSA-MIR-6883-5P99.6968.053785
HSA-MIR-6766-5P99.6867.702325
HSA-MIR-613499.6365.681537
HSA-MIR-6758-3P99.5767.551078
HSA-MIR-1212399.5271.792990
HSA-MIR-363-5P99.4664.511015
HSA-MIR-3692-5P99.2967.041421
HSA-MIR-892C-5P99.1670.562116
HSA-MIR-6769B-5P98.7364.911092
HSA-MIR-6776-5P98.5467.431304
HSA-MIR-4712-3P98.5265.39822
HSA-MIR-302F98.4469.021776
HSA-MIR-448398.0964.121642
HSA-MIR-506-5P98.0267.411065
HSA-MIR-6769A-5P97.9964.16851
HSA-MIR-365297.7165.431890
HSA-MIR-443097.4765.611813
HSA-MIR-7847-3P96.6364.58952

Literature-anchored findings (GeneRIF, showing 40)

  • data are consistent with the contention that group IIA sPLA2 expression is elevated in neoplastic prostatic tissue and support the hypothesis that dysregulation of sPLA2 may play a role in prostatic carcinogenesis (PMID:11839587)
  • Ceramides increase the activity of the secretory phospholipase A2 and alter its fatty acid specificity (PMID:11903045)
  • antibacterial properties of PLA2-IIA in human acute phase serum (PMID:12085323)
  • determination of binding site preference for membranes with anionic phospholipids (PMID:12244093)
  • the potent antistaphylococcal activity of Group IIA PLA(2) depends on cationic properties of the enzyme that promote binding to the cell wall (PMID:12359734)
  • The activity of PLA2G2A may suppress progression or metastasis of human gastric cancer. (PMID:12456890)
  • The crystal structure of H48Q PLA2 reveals that the active site structure is maintained intact in the mutant and suggests a mechanism in which it is not essential to involve a base (His-48) to deprotonate a water molecule in order to facilitate catalysis. (PMID:12501175)
  • Human group IIA PLA2 induces expression of inducible nitric oxide synthase and nitrite production in a dose- and time-dependent manner in activated macrophages of mouse cell line Raw264.7. (PMID:12574380)
  • Group IIA secretory PLA2 induces the release of specific granule enzyme beta-glucuronidase, the production of IL-6 and IL-8, and the expression of activation markers (CD44 and CD69) on human eosinophils. (PMID:12626587)
  • sPLA2-IIA potentiates the influx of Ca2+ into neurons via L-VSCC; eicosanoids and ROS generated during arachidonic acid oxidative metabolism are involved in sPLA2-IIA-induced apoptosis in cooperation with Ca2+ (PMID:12694401)
  • hIIA PLA2 releases arachidonic acid from apoptotic T cells through interactions with heparan sulfate proteoglycans. (PMID:12773489)
  • sPLA2-triggered release of fatty acids from erythrocyte membranes is inhibited by phospholipase A2-activating protein (PMID:14499668)
  • Stable expression of human groups IIA and X secreted phospholipases A(2) (hGIIA and hGX) in CHO-K1 and HEK293 cells leads to serum- and interleukin-1beta-promoted arachidonate release. (PMID:15007070)
  • macrophage sPLA2 IIa is a proatherogenic factor and regulates collagen production in the plaque (PMID:15576846)
  • new autocrine and paracrine pathways activating sPLA2-IIA gene expression in rat and human vascular smooth muscle cells (PMID:15802623)
  • macrophage-specific overexpression of human sPLA2 increases atherogenesis by directly modulating foam cell formation and in vivo oxidative stress without any effect on systemic sPLA2 activity and lipoprotein metabolism (PMID:15897607)
  • sPLA2-IIA expression occurred at higher levels in cystic fibrosis cells than in control cells (PMID:15964894)
  • Appreciable bacterial phospholipid degradation occurs only in the presence of catalytically active group IIA-phospholipase A2 and a functional respiratory burst NADPH oxidase in neutrophils. (PMID:16177112)
  • Group IIA PLA2 is the major antibacterial factor in human acute phase serum against the gram-positive bacteria Staphylococcus aureus and Listeria monocytogenes, exceeding complement in efficiency (PMID:16253130)
  • increased sPLA(2) activity in inflammation in the presence of cells that have lost their membrane phospholipid asymmetry can lead to LPA-mediated endothelial dysfunction and loss of vascular integrity (PMID:16278219)
  • PLA2G2A haplotypic variation strongly impacts on phospholipase A(2)IIa levels which are related to higher risk of coronary artery disease in patients with Type II diabetes mellitus. (PMID:16368710)
  • A mechanism is indicated for phospholipase A2 type IIa (PLA2-IIA) to target perturbed native membranes with low global anionic lipid contents. (PMID:16461407)
  • This study reviews the evidence and discusses the potential roles of phospholipase A2 Group 2A for schizophrenia with particular emphasis on published association studies. (PMID:16585943)
  • cytosolic and group IIA secreted phospholipases A(2) work together to liberate arachidonate from phospholipids in response to cytokines (PMID:16603549)
  • cPLA2beta3 is a novel variant localized to mitochondria and early endosomes (PMID:16617059)
  • large differences in activities result from distinct conformational changes in PLA(2)s upon membrane binding (PMID:17029400)
  • Phospholipase A2 Group IIa may be a modifier gene for fundic gland polyposis in patients with familial adenomatous polyposis (PMID:17164967)
  • Analysis of the lipid extracts of supernatants and cell pellets as well as pharmacological studies with calpeptin and the cytosolic phospholipase A2 (PLA2) inhibitor pyrrolidine-1 showed the dependence of AA release on cytosolic PLA2-catalyzed reactions. (PMID:17264305)
  • Mean platelet PLA(2) activity was increased in individuals with Alzheimer’s disease,vascular dementia and stroke. (PMID:17447002)
  • sPLA2-IIA tSNP haplotypes do not show association with total and LDL cholesterol and oxLDL/LDL (PMID:17545304)
  • Intercellular PLA2 expression and location in human macrophages: influence of synthetic material surface chemistry are reported. (PMID:17565722)
  • This enzyme may be a useful guide for therapeutic efficacy and cardiovascular risk assessment. [REVIEW] (PMID:17892360)
  • sPLA2-IIa activity may serve a dual role in breast carcinogenesis, beneficial in its release of arachidonate and detrimental in the metabolic conversion of arachadonic acid into prostaglandins and leukotrienes. (PMID:17932742)
  • Activatted protein C(APC) effectively suppresses up-regulated sPLA(2)-IIA expressionwhich might contribute to the reported beneficial effects of APC in the treatment of severe inflammatory disorders. (PMID:17936881)
  • increased flux of cholesterol from HDL into the liver via SR-BI as a result of PLA2G2A modification of the HDL particle translates neither into increased biliary and fecal sterol output nor into increased gallstone formation (PMID:18037706)
  • The enzyme produced supramolecular aggregates with anionic phospholipid vesicles as a result of bridging between particles, a property that is unique to this globally cationic IIA PLA2. (PMID:18089561)
  • These data demonstrated that interactions with sPLA(2) observed in artificial bilayers apply to biological membranes. (PMID:18192373)
  • Current knowledge about the various links of sPLA2-IIA to cancer of the gastro-intestinal tract, and several models to illustrate its putative biological effects on tumor development.[REVIEW] (PMID:18508504)
  • results highlight the complexity of PLA2G2A regulation and provide functional evidence for PLA2G2A as an important regulator of invasion and metastasis in gastric cancer (PMID:18519687)
  • Human cardiac myxoma exhibits highly positive phospholipase A2, group IIA, immunophenotype (100% positive cases). (PMID:18540439)

Cross-species orthologs

4 orthologs

OrganismSymbolGene ID
mus_musculusPla2g2aENSMUSG00000058908
rattus_norvegicusPla2g2aENSRNOG00000016945
caenorhabditis_elegansWBGENE00007419
caenorhabditis_elegansWBGENE00015406

Paralogs (8): PLA2G10 (ENSG00000069764), PLA2G2D (ENSG00000117215), PLA2G5 (ENSG00000127472), PLA2G2F (ENSG00000158786), PLA2G1B (ENSG00000170890), PLA2G2C (ENSG00000187980), PLA2G2E (ENSG00000188784), OC90 (ENSG00000253117)

Protein

Protein identifiers

Phospholipase A2, membrane associatedP14555 (reviewed: P14555)

Alternative names: GIIC sPLA2, Group IIA phospholipase A2, Non-pancreatic secretory phospholipase A2, Phosphatidylcholine 2-acylhydrolase 2A

All UniProt accessions (2): A0A3B3IRX2, P14555

UniProt curated annotations — full annotation on UniProt →

Function. Secretory calcium-dependent phospholipase A2 that primarily targets extracellular phospholipids with implications in host antimicrobial defense, inflammatory response and tissue regeneration. Hydrolyzes the ester bond of the fatty acyl group attached at sn-2 position of phospholipids (phospholipase A2 activity) with preference for phosphatidylethanolamines and phosphatidylglycerols over phosphatidylcholines. Contributes to lipid remodeling of cellular membranes and generation of lipid mediators involved in pathogen clearance. Displays bactericidal activity against Gram-positive bacteria by directly hydrolyzing phospholipids of the bacterial membrane. Upon sterile inflammation, targets membrane phospholipids of extracellular mitochondria released from activated platelets, generating free unsaturated fatty acids such as arachidonate that is used by neighboring leukocytes to synthesize inflammatory eicosanoids such as leukotrienes. Simultaneously, by compromising mitochondrial membrane integrity, promotes the release in circulation of potent damage-associated molecular pattern molecules that activate the innate immune response. Plays a stem cell regulator role in the intestinal crypt. Within intracellular compartment mediates Paneth cell differentiation and its stem cell supporting functions by inhibiting Wnt signaling pathway in intestinal stem cell (ICS). Secreted in the intestinal lumen upon inflammation, acts in an autocrine way and promotes prostaglandin E2 synthesis that stimulates Wnt signaling pathway in ICS cells and tissue regeneration. May play a role in the biosynthesis of N-acyl ethanolamines that regulate energy metabolism and inflammation. Hydrolyzes N-acyl phosphatidylethanolamines to N-acyl lysophosphatidylethanolamines, which are further cleaved by a lysophospholipase D to release N-acyl ethanolamines. Independent of its catalytic activity, acts as a ligand for integrins. Binds to and activates integrins ITGAV:ITGB3, ITGA4:ITGB1 and ITGA5:ITGB1. Binds to a site (site 2) which is distinct from the classical ligand-binding site (site 1) and induces integrin conformational changes and enhanced ligand binding to site 1. Induces cell proliferation in an integrin-dependent manner.

Subcellular location. Secreted. Cell membrane. Mitochondrion outer membrane.

Tissue specificity. Expressed in various tissues including heart, kidney, liver, lung, pancreas, placenta, skeletal muscle, prostate, ovary, colon and small intestine. Not detected in lymphoid organs and brain. Expressed in platelets (at protein level).

Cofactor. Binds 1 Ca(2+) ion per subunit.

Miscellaneous. Group II phospholipase A2 is found in many cells and also extracellularly. The membrane-bound and secreted forms are identical and are encoded by a single gene. Interaction with integrin ITGA4:ITGB3 is inhibited by a number of synthetic peptides including R-Ala-Trp-Asp-Ile and R-Gly-Arg-Gly-Asp-Asp-Asp which bind to PLA2G2A and disrupt its integrin-binding activity.

Similarity. Belongs to the phospholipase A2 family.

RefSeq proteins (5): NP_000291, NP_001155199, NP_001155200, NP_001155201, NP_001382392* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001211PLA2Family
IPR016090PLA2-like_domDomain
IPR033112PLA2_Asp_ASActive_site
IPR033113PLA2_histidineActive_site
IPR036444PLipase_A2_dom_sfHomologous_superfamily

Pfam: PF00068

Enzyme classification (BRENDA):

  • EC 3.1.1.4 — phospholipase A2 (BRENDA: 129 organisms, 452 substrates, 710 inhibitors, 90 Km, 14 kcat entries)

Substrate kinetics (BRENDA)

58 substrates with measured Km, best-characterized 15. Km ranges are aggregated across organisms/conditions.

SubstrateKm (mM)Measurements
PHOSPHATIDYLCHOLINE0.05–1712
1,2-DIHEXANOYL-SN-GLYCERO-3-PHOSPHOCHOLINE0.94–13.857
PHOSPHATIDYLETHANOLAMINE0.02–10.55
1,2-DIHEPTANOYL-SN-GLYCERO-3-PHOPHORYLCHOLINE1.12–5.133
1,2-DIHEPTANOYL-SN-GLYCERO-3-PHOSPHOCHOLINE3–3.923
1,2-DIOCTANOYL-SN-GLYCERO-3-PHOSPHOCHOLINE0.12–3.23
1-HEXADECYL-2-ACETYL-SN-GLYCEROL-3-PHOSPHOCHOLIN0.0137–0.01422
1-PALMITOYL-2-ARACHIDONYLPHOSPHATIDYLCHOLINE0.0016–0.00332
LECITHIN8.3–8.52
(3E)-3-[(3AS,7AS)-3-METHYL-2-OXO-6-(PROPAN-2-YLI0.7421
(3R,3AS,5AS,8BR)-3,5A,5B-TRIMETHYL-3A,4,5,5A,5B,0.7461
(3R,3AS,5AS,9BR)-3,5A,9-TRIMETHYL-3A,4,5,5A-TETR0.7341
(3R,3AS,6R,8S,9BS)-6,8-DIHYDROXY-3,6,9-TRIMETHYL0.7441
(3R,3AS,6R,8S,9BS)-8-HYDROXY-3,6,9-TRIMETHYL-2-O0.7381
(3R,3AS,6R,9BS)-3,6,9-TRIMETHYL-2,8-DIOXO-2,3,3A0.7421

Catalyzed reactions (Rhea), 12 shown:

  • a 1,2-diacyl-sn-glycero-3-phosphocholine + H2O = a 1-acyl-sn-glycero-3-phosphocholine + a fatty acid + H(+) (RHEA:15801)
  • 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphocholine + H2O = 1-hexadecanoyl-sn-glycero-3-phosphocholine + (9Z)-octadecenoate + H(+) (RHEA:38779)
  • 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphoethanolamine + H2O = 1-hexadecanoyl-sn-glycero-3-phosphoethanolamine + (5Z,8Z,11Z,14Z)-eicosatetraenoate + H(+) (RHEA:40431)
  • 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine + H2O = (9Z,12Z)-octadecadienoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine + H(+) (RHEA:40811)
  • 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphoethanolamine + H2O = 1-hexadecanoyl-sn-glycero-3-phosphoethanolamine + (9Z,12Z)-octadecadienoate + H(+) (RHEA:40815)
  • 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine + H2O = 1-hexadecanoyl-sn-glycero-3-phosphoethanolamine + (9Z)-octadecenoate + H(+) (RHEA:40911)
  • 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phospho-(1’-sn-glycerol) + H2O = 1-hexadecanoyl-sn-glycero-3-phospho-(1’-sn-glycerol) + (9Z)-octadecenoate + H(+) (RHEA:40919)
  • 1,2-dihexadecanoyl-sn-glycero-3-phosphocholine + H2O = 1-hexadecanoyl-sn-glycero-3-phosphocholine + hexadecanoate + H(+) (RHEA:41223)
  • 1-hexadecanoyl-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholine + H2O = (4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoate + 1-hexadecanoyl-sn-glycero-3-phosphocholine + H(+) (RHEA:41231)
  • 1-hexadecanoyl-2-(9Z-octadecenoyl)-sn-glycero-3-phosphoglycerol + H2O = 1-hexadecanoyl-sn-glycero-3-phosphoglycerol + (9Z)-octadecenoate + H(+) (RHEA:44524)
  • a 1,2-diacyl-sn-glycero-3-phosphoethanolamine + H2O = a 1-acyl-sn-glycero-3-phosphoethanolamine + a fatty acid + H(+) (RHEA:44604)
  • N-hexadecanoyl-1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine + H2O = N-hexadecanoyl-1-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine + (9Z)-octadecenoate + H(+) (RHEA:45424)

UniProt features (55 total): mutagenesis site 22, helix 8, disulfide bond 7, binding site 4, strand 4, active site 2, turn 2, site 2, signal peptide 1, chain 1, sequence variant 1, sequence conflict 1

Structure

Experimental structures (PDB)

17 structures.

PDBMethodResolution (Å)
3U8IX-RAY DIFFRACTION1.1
1N28X-RAY DIFFRACTION1.5
5G3NX-RAY DIFFRACTION1.8
3U8DX-RAY DIFFRACTION1.8
1KVOX-RAY DIFFRACTION2
1KQUX-RAY DIFFRACTION2.1
1PODX-RAY DIFFRACTION2.1
1POEX-RAY DIFFRACTION2.1
1BBCX-RAY DIFFRACTION2.2
1DB4X-RAY DIFFRACTION2.2
1J1AX-RAY DIFFRACTION2.2
3U8BX-RAY DIFFRACTION2.3
3U8HX-RAY DIFFRACTION2.3
1AYPX-RAY DIFFRACTION2.57
1N29X-RAY DIFFRACTION2.6
1DCYX-RAY DIFFRACTION2.7
1DB5X-RAY DIFFRACTION2.8

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-P14555-F191.220.82

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 (4): 67; 111; 94 (important for integrin binding); 120 (important for integrin binding)

Ligand- & substrate-binding residues (4): 47; 49; 51; 68

Disulfide bonds (7): 46–137, 48–64, 63–117, 69–144, 70–110, 79–103, 97–108

Mutagenesis-validated functional residues (22):

PositionPhenotype
27reduces bactericidal activity to 20% against b.subtilis and to 4% against s.aureus. complete loss of bactericidal activi
30complete loss of bactericidal activity; when associated with e-27 and e-35.
35complete loss of bactericidal activity; when associated with e-27 and e-30.
49no effect on integrin binding; when associated with k-68.
57impairs bactericidal activity; when associated with e-128.
62no effect on integrin binding.
67catalytically inactive but does not affect integrin binding. impairs leukotriene b4 synthesis in activated neutrophils.
68no effect on integrin binding; when associated with s-49.
72impairs bactericidal activity; when associated with e-73 and e-77.
73impairs bactericidal activity; when associated with e-72 and e-77.
73slightly reduced integrin binding.
77impairs bactericidal activity; when associated with e-72 and e-73.
87reduces bactericidal activity to 20% against b.subtilis and to 10% against s.aureus. complete loss of bactericidal activ
94moderately reduced integrin binding. greatly reduced integrin binding but no effect on catalytic activity; when associat
99reduces bactericidal activity to 25% against b.subtilis and to 10% against s.aureus. complete loss of bactericidal activ
104reduces bactericidal activity to 18% against b.subtilis and to 12% against s.aureus. complete loss of bactericidal activ
120moderately reduced integrin binding. greatly reduced integrin binding but no effect on catalytic activity; when associat
122impairs bactericidal activity; when associated with e-127.
127impairs bactericidal activity; when associated with e-122.
128impairs bactericidal activity; when associated with e-57.
135impairs bactericidal activity; when associated with d-138.
138impairs bactericidal activity; when associated with e-135.

Function

Pathways and Gene Ontology

Reactome pathways

7 pathways

IDPathway
R-HSA-1482788Acyl chain remodelling of PC
R-HSA-1482801Acyl chain remodelling of PS
R-HSA-1482839Acyl chain remodelling of PE
R-HSA-1482922Acyl chain remodelling of PI
R-HSA-1482925Acyl chain remodelling of PG
R-HSA-1483166Synthesis of PA
R-HSA-6803157Antimicrobial peptides

MSigDB gene sets: 286 (showing top): MODULE_172, GOBP_REGULATION_OF_CELL_ACTIVATION, GOBP_RESPONSE_TO_NITROGEN_COMPOUND, GOBP_REGULATION_OF_LEUKOCYTE_PROLIFERATION, GOBP_PHOSPHOLIPID_METABOLIC_PROCESS, GOBP_PHOSPHATIDYLCHOLINE_METABOLIC_PROCESS, REACTOME_INNATE_IMMUNE_SYSTEM, GOBP_INFLAMMATORY_RESPONSE, GOCC_SECRETORY_GRANULE, GOBP_NEGATIVE_REGULATION_OF_LEUKOCYTE_PROLIFERATION, KEGG_MAPK_SIGNALING_PATHWAY, KAAB_HEART_ATRIUM_VS_VENTRICLE_UP, GOBP_RESPONSE_TO_ANGIOTENSIN, GOBP_POSITIVE_REGULATION_OF_MAPK_CASCADE, GOBP_NEGATIVE_REGULATION_OF_CELL_CELL_ADHESION

GO Biological Process (20): phospholipid metabolic process (GO:0006644), inflammatory response (GO:0006954), positive regulation of macrophage derived foam cell differentiation (GO:0010744), lipid catabolic process (GO:0016042), killing of cells of another organism (GO:0031640), low-density lipoprotein particle remodeling (GO:0034374), intestinal stem cell homeostasis (GO:0036335), angiotensin-activated signaling pathway (GO:0038166), negative regulation of T cell proliferation (GO:0042130), phosphatidylethanolamine metabolic process (GO:0046337), phosphatidylcholine metabolic process (GO:0046470), phosphatidylglycerol metabolic process (GO:0046471), phosphatidic acid metabolic process (GO:0046473), arachidonate secretion (GO:0050482), positive regulation of inflammatory response (GO:0050729), defense response to Gram-positive bacterium (GO:0050830), positive regulation of ERK1 and ERK2 cascade (GO:0070374), regulation of neutrophil activation (GO:1902563), lipid metabolic process (GO:0006629), defense response to bacterium (GO:0042742)

GO Molecular Function (7): A2-type glycerophospholipase activity (GO:0004623), calcium ion binding (GO:0005509), phospholipid binding (GO:0005543), obsolete calcium-dependent phospholipase A2 activity (GO:0047498), catalytic activity (GO:0003824), hydrolase activity (GO:0016787), metal ion binding (GO:0046872)

GO Cellular Component (11): extracellular region (GO:0005576), obsolete extracellular space (GO:0005615), mitochondrial outer membrane (GO:0005741), endoplasmic reticulum (GO:0005783), endoplasmic reticulum membrane (GO:0005789), plasma membrane (GO:0005886), secretory granule (GO:0030141), perinuclear region of cytoplasm (GO:0048471), extracellular exosome (GO:0070062), mitochondrion (GO:0005739), membrane (GO:0016020)

Reactome top-level categories

Rollup of top-2 pathways:

CategoryPathways
Glycerophospholipid biosynthesis6
Innate Immune System1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
glycerophospholipid metabolic process4
cellular anatomical structure3
cytoplasm3
lipid metabolic process2
defense response2
endomembrane system2
intracellular membrane-bounded organelle2
organophosphate metabolic process1
macrophage derived foam cell differentiation1
regulation of macrophage derived foam cell differentiation1
positive regulation of cell differentiation1
catabolic process1
cell killing1
disruption of cell in another organism1
plasma lipoprotein particle remodeling1
homeostasis of number of cells1
G protein-coupled receptor signaling pathway1
cellular response to angiotensin1
T cell proliferation1
regulation of T cell proliferation1
negative regulation of lymphocyte proliferation1
negative regulation of T cell activation1
icosanoid secretion1
arachidonate transport1
inflammatory response1
positive regulation of defense response1
positive regulation of response to external stimulus1
regulation of inflammatory response1
defense response to bacterium1
positive regulation of MAPK cascade1
ERK1 and ERK2 cascade1
regulation of ERK1 and ERK2 cascade1
regulation of leukocyte activation1
neutrophil activation1
primary metabolic process1
response to bacterium1
glycerophospholipase activity1
carboxylic ester hydrolase activity1
metal ion binding1
lipid binding1

Protein interactions and networks

STRING

1574 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
PLA2G2APLA2R1Q13018930
PLA2G2APLA2G4AP47712918
PLA2G2APLA2G12AQ9BZM1875
PLA2G2APLA2G3Q9NZ20874
PLA2G2APLA2G6O60733823
PLA2G2APLA2G12BQ9BX93793
PLA2G2APTGS2P35354792
PLA2G2ALTA4HP09960745
PLA2G2APLA2G7Q13093712
PLA2G2ACALML5Q9NZT1669
PLA2G2ACALML4Q96GE6669
PLA2G2ACALML3P27482668
PLA2G2ACALM1P02593666
PLA2G2ACALML6Q8TD86665
PLA2G2AENPP2Q13822645

IntAct

5 interactions, top by confidence:

ABTypeScore
ALOX12PLA2G2Apsi-mi:“MI:0915”(physical association)0.400
CRELD2PLA2G2Apsi-mi:“MI:0915”(physical association)0.370
CEP70PLA2G2Apsi-mi:“MI:0915”(physical association)0.370
PLA2G2ACRMP1psi-mi:“MI:0915”(physical association)0.000

BioGRID (37): VIM (Affinity Capture-MS), VIM (Affinity Capture-Western), VIM (Reconstituted Complex), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity), PLA2G2A (Biochemical Activity)

ESM2 similar proteins: A8CG90, F8QN51, F8QN53, O42187, P00592, P00593, P00594, P04054, P04055, P04056, P04416, P04417, P06596, P0DJN7, P11407, P14419, P14421, P14423, P14424, P14555, P20255, P20256, P20258, P20259, P24293, P34180, P43434, P59170, P59172, P81236, P81237, Q1ZY03, Q2YHJ2, Q2YHJ7, Q6EER3, Q6EER4, Q6EER5, Q6EER6, Q71QE8, Q7M334

Diamond homologs: A0A411EZW9, A8CG78, A8CG84, A8CG86, A8CG87, A8E2V8, B5U6Z2, B6CQR5, C0HJC1, C0HKC3, C0HKC4, C0HLF0, C0HLL2, C0HMB2, C3W4R6, C9DPL5, F8QN51, F8QN52, F8QN53, F8QN54, G3DT18, O42187, O42188, O42189, O42190, P00626, P04417, P06860, P08878, P0CAR9, P0DJP4, P0DKR3, P0DKR5, P0DKU1, P0DPS4, P11407, P14420, P14423, P14424, P14555

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

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

ClassificationCount (floor)
Pathogenic1
Likely pathogenic0
Uncertain significance23
Likely benign3
Benign5

Top pathogenic / likely-pathogenic (1)

Variant IDHGVSClassification
13635NM_001395463.1(PLA2G2A):c.144_145del (p.Cys48fs)Pathogenic

SpliceAI

638 predictions. Top by Δscore:

VariantEffectΔscore
1:19975852:A:Cacceptor_gain1.0000
1:19978378:A:ACdonor_gain1.0000
1:19978379:C:CCdonor_gain1.0000
1:19978379:CCGAT:Cdonor_gain1.0000
1:19978392:T:TAdonor_gain1.0000
1:19975841:TTG:Tacceptor_gain0.9900
1:19975844:C:CCacceptor_gain0.9900
1:19975851:C:CTacceptor_gain0.9900
1:19975852:A:ACacceptor_gain0.9900
1:19978014:CCA:Cdonor_gain0.9900
1:19978373:GCCTC:Gdonor_loss0.9900
1:19978374:CCTCA:Cdonor_loss0.9900
1:19978375:CTCA:Cdonor_loss0.9900
1:19978376:TCA:Tdonor_loss0.9900
1:19978377:CACC:Cdonor_loss0.9900
1:19978378:ACC:Adonor_loss0.9900
1:19978520:TAGGC:Tacceptor_gain0.9900
1:19978522:GGC:Gacceptor_gain0.9900
1:19978523:GCCT:Gacceptor_loss0.9900
1:19978525:C:CCacceptor_gain0.9900
1:19978525:CT:Cacceptor_loss0.9900
1:19978526:T:Gacceptor_loss0.9900
1:19975839:TTTTG:Tacceptor_gain0.9800
1:19975840:TTTG:Tacceptor_gain0.9800
1:19975842:TG:Tacceptor_gain0.9800
1:19975844:C:Tacceptor_loss0.9800
1:19975852:A:Tacceptor_gain0.9800
1:19978008:CTCTT:Cdonor_loss0.9800
1:19978009:TCTTA:Tdonor_loss0.9800
1:19978010:CTTAC:Cdonor_loss0.9800

AlphaMissense

0 scored. Top likely-pathogenic:

dbSNP variants (sampled 300 via entrez): RS1000002452 (1:19980526 C>T), RS1000136426 (1:19980338 C>T), RS1000705343 (1:19979666 G>A), RS1001223805 (1:19979411 A>T), RS1001344408 (1:19975205 G>A,C), RS1001507975 (1:19980766 T>A), RS1001555104 (1:19979927 A>AG), RS1001879676 (1:19979929 G>A,C,T), RS1002108175 (1:19980138 G>T), RS1002643575 (1:19981674 G>A,T), RS1002726824 (1:19977084 C>T), RS1002917769 (1:19981841 C>A,T), RS1003001361 (1:19977409 G>A), RS1003593354 (1:19975934 T>C), RS1003812710 (1:19977066 C>T)

Disease associations

OMIM: gene MIM:172411 | disease phenotypes: MIM:246450

GenCC curated gene-disease

DiseaseClassificationInheritance
colorectal cancerLimitedAutosomal dominant

Mondo (3): familial colorectal cancer (MONDO:0023113), 3-hydroxy-3-methylglutaric aciduria (MONDO:0009520), colorectal cancer (MONDO:0005575)

Orphanet (1): 3-hydroxy-3-methylglutaric aciduria (Orphanet:20)

HPO phenotypes

8 total (8 of 8 shown, HPO-id order):

HPOTerm
HP:0000006Autosomal dominant inheritance
HP:0001442Typified by somatic mosaicism
HP:0002891Uterine leiomyosarcoma
HP:0003003Colon cancer
HP:0005584Renal cell carcinoma
HP:0006716Hereditary nonpolyposis colorectal carcinoma
HP:0006740Transitional cell carcinoma of the bladder
HP:0006753Neoplasm of the stomach

GWAS associations

8 associations (top):

StudyTraitp-value
GCST004028_1Immunoglobulin light chain (AL) amyloidosis1.000000e-06
GCST006585_38Blood protein levels2.000000e-111
GCST008260_1Group IIA secretory phospholipase A2 levels in individuals with elevated hsCRP0.000000e+00
GCST008260_12Group IIA secretory phospholipase A2 levels in individuals with elevated hsCRP2.000000e-11
GCST008260_2Group IIA secretory phospholipase A2 levels in individuals with elevated hsCRP0.000000e+00
GCST008260_3Group IIA secretory phospholipase A2 levels in individuals with elevated hsCRP4.000000e-138
GCST008260_4Group IIA secretory phospholipase A2 levels in individuals with elevated hsCRP6.000000e-79
GCST008260_7Group IIA secretory phospholipase A2 levels in individuals with elevated hsCRP2.000000e-31

MeSH disease descriptors (1)

DescriptorNameTree numbers
C5383243-Hydroxy-3-Methylglutaryl-CoA Lyase Deficiency (supp.)

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (2): CHEMBL3474 (SINGLE PROTEIN), CHEMBL4524005 (PROTEIN FAMILY)

Molecules with ChEMBL bioactivity

2 molecules (phase ≥1), by development phase (incl. off-target/promiscuous compounds). Patent mentions across the top 20 by phase: 279,374 (via chembl_molecule»patent_compound — counts attach to the compound, not the gene–compound relationship, so off-target/promiscuous molecules can dominate).

MoleculeNamePhasePatents
CHEMBL384467DEXAMETHASONE4279,102
CHEMBL148674VARESPLADIB2272

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

GtoPdb / IUPHAR curated pharmacology

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

Target class: enzyme — Hydrolases & Lipases

Most potent curated ligand interactions (4 total), top 4:

LigandActionAffinityParameter
varespladibInhibition8.05pIC50
KH064Inhibition7.5pIC50
compound 12e [PMID: 18605714]Inhibition7.4pIC50
manoalideInhibition5.41pIC50

Binding affinities (BindingDB)

25 measured of 32 human assays (53 total across all organisms); most potent 25 below. Values come from heterogeneous assays and are not directly comparable.

LigandMeasureValuePatent
(6R)-11-[[4-[[2-[cyclopropyl(difluoro)methyl]-4-pyridinyl]oxy]-3,5-difluorophenyl]methoxy]-2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-dien-9-oneIC500.12 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(4S,6R,7S)-12-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]-2,9,11-triazatetracyclo[7.4.0.02,7.04,6]trideca-1(13),11-dien-10-oneIC500.141 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(6R)-11-[[4-[(2-cyclopropyl-4-pyridinyl)oxy]-3,5-difluorophenyl]methoxy]-2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-dien-9-oneIC500.191 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(6R)-11-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]spiro[2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-diene-3,1’-cyclopropane]-9-oneIC500.191 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(4R,6S,7R)-12-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]-2,9,11-triazatetracyclo[7.4.0.02,7.04,6]trideca-1(13),11-dien-10-oneIC500.209 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
12-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]-2,9,11-triazatetracyclo[7.4.0.02,7.04,6]trideca-1(13),11-dien-10-oneIC500.219 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(6R)-11-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]spiro[2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-diene-4,1’-cyclopropane]-9-oneIC500.282 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
11-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]spiro[2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-diene-4,1’-cyclobutane]-9-oneIC500.288 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(6R)-11-[[4-[[2-[cyclobutyl(difluoro)methyl]-4-pyridinyl]oxy]-3,5-difluorophenyl]methoxy]-2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-dien-9-oneIC500.427 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(1R,10R,11S)-5-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]-2,6,8-triazatetracyclo[9.2.1.02,10.03,8]tetradeca-3,5-dien-7-oneIC500.525 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(6R)-11-[[4-[[2-[(3,3-difluorocyclobutyl)-difluoromethyl]-4-pyridinyl]oxy]-3,5-difluorophenyl]methoxy]-2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-dien-9-oneIC500.603 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(1S,10R,11S)-5-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]-2,6,8-triazatetracyclo[9.2.1.02,10.03,8]tetradeca-3,5-dien-7-oneIC500.617 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(6S)-11-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]spiro[2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-diene-4,1’-cyclopropane]-9-oneIC501.07 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
(6S)-11-[[3,5-difluoro-4-[[2-(trifluoromethyl)-4-pyridinyl]oxy]phenyl]methoxy]spiro[2,8,10-triazatricyclo[6.4.0.02,6]dodeca-1(12),10-diene-4,1’-cyclobutane]-9-oneIC501.91 nMUS-20250154153: DIHYDROIMIDAZO-PYRIMIDINONE COMPOUNDS AS LP-PLA2 INHIBITORS AND USE THEREOF
2-{1-[(2-{[5-(2-{[3-(carbamoylmethyl)-5-methoxy-2-methyl-1H-indol-1-yl]methyl}phenoxy)pentyl]oxy}phenyl)methyl]-5-methoxy-2-methyl-1H-indol-3-yl}acetamideIC5024 nM
2-{1-[(2-{[6-(2-{[3-(carbamoylmethyl)-5-methoxy-2-methyl-1H-indol-1-yl]methyl}phenoxy)hexyl]oxy}phenyl)methyl]-5-methoxy-2-methyl-1H-indol-3-yl}acetamideIC5039 nM
2-[1-({2-[3-(2-{[3-(carbamoylmethyl)-5-methoxy-2-methyl-1H-indol-1-yl]methyl}phenoxy)propoxy]phenyl}methyl)-5-methoxy-2-methyl-1H-indol-3-yl]acetamideIC5048 nM
Bis-indole Derivative, 9IC5049 nM
2-{1-[(2-{[7-(2-{[3-(carbamoylmethyl)-5-methoxy-2-methyl-1H-indol-1-yl]methyl}phenoxy)heptyl]oxy}phenyl)methyl]-5-methoxy-2-methyl-1H-indol-3-yl}acetamideIC5052 nM
2-{1-[(2-{[8-(2-{[3-(carbamoylmethyl)-5-methoxy-2-methyl-1H-indol-1-yl]methyl}phenoxy)octyl]oxy}phenyl)methyl]-5-methoxy-2-methyl-1H-indol-3-yl}acetamideIC5058 nM
2-[1-({2-[4-(2-{[3-(carbamoylmethyl)-5-methoxy-2-methyl-1H-indol-1-yl]methyl}phenoxy)butoxy]phenyl}methyl)-5-methoxy-2-methyl-1H-indol-3-yl]acetamideIC5060 nM
Bis-indole Derivative, 10IC5076 nM
Bis-indole Derivative, 11IC5086 nM
2-(5-methoxy-2-methyl-1-{[2-(pentyloxy)phenyl]methyl}-1H-indol-3-yl)acetamideIC50120 nM
2-(1-benzyl-5-methoxy-2-methyl-1H-indol-3-yl)acetamideEC501500 nM

ChEMBL bioactivities

473 potent at pChembl≥5 of 576 total, top 50 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
8.85IC501.4nMCHEMBL5172164
8.52IC503nMCHEMBL180576
8.52IC503nMCHEMBL332993
8.52IC503nMCHEMBL357979
8.40IC504nMCHEMBL425696
8.40IC504nMCHEMBL436456
8.30IC505nMCHEMBL5208632
8.22IC506nMCHEMBL361552
8.22IC506nMCHEMBL357979
8.22IC506nMCHEMBL332993
8.22IC506nMCHEMBL359005
8.22IC506nMCHEMBL356606
8.22IC506nMCHEMBL347957
8.22IC506nMCHEMBL345488
8.15IC507nMVARESPLADIB
8.15IC507nMCHEMBL179658
8.15IC507nMCHEMBL180576
8.15IC507nMCHEMBL5177527
8.15IC507nMCHEMBL345986
8.10IC508nMCHEMBL5172164
8.10IC508nMCHEMBL433701
8.10IC508nMCHEMBL355944
8.10IC508nMCHEMBL347748
8.05IC509nMCHEMBL179118
8.05IC509nMCHEMBL355944
8.05IC509nMVARESPLADIB
8.05IC509nMCHEMBL357804
8.05IC509nMCHEMBL422667
8.05IC509nMCHEMBL148795
8.00IC5010nMCHEMBL179966
8.00IC5010nMCHEMBL361552
8.00IC5010nMCHEMBL425869
8.00IC5010nMCHEMBL4593409
8.00IC5010nMCHEMBL423762
8.00IC5010nMCHEMBL5172164
8.00IC5010nMCHEMBL422667
7.96IC5011nMCHEMBL435488
7.96IC5011nMCHEMBL425696
7.96IC5011nMCHEMBL4451830
7.96IC5011nMCHEMBL346196
7.96IC5011nMCHEMBL359005
7.96IC5011nMCHEMBL148649
7.92IC5012nMVARESPLADIB
7.92IC5012nMCHEMBL4457557
7.89IC5013nMVARESPLADIB
7.89IC5013nMCHEMBL179658
7.89IC5013nMCHEMBL148649
7.85IC5014nMCHEMBL423762
7.85IC5014nMCHEMBL514841
7.82IC5015nMCHEMBL359304

PubChem BioAssay actives

496 with measured affinity, of 1120 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
2-[2-methyl-1-oxamoyl-3-[(2-phenylphenyl)methyl]indolizin-8-yl]oxyacetic acid1894718: Inhibition of human group IIA phospholipase A2 preincubated with compound for 10 mins followed by enzyme addition and measured after 30 mins by PC/DOC assayic500.0014uM
2-[4-[2-(benzenesulfonamido)-2-oxoethoxy]-1-benzyl-2-methyl-6,7,8,9-tetrahydrobenzo[g]indol-3-yl]-2-oxoacetamide242401: Inhibitory concentration against human nonpancreatic secretory phospholipase A2ic500.0030uM
2-[2-methyl-3-oxamoyl-1-[(2-phenylphenyl)methyl]indol-4-yl]oxyacetic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0030uM
2-[2-ethyl-1-oxamoyl-3-[(2-phenylphenyl)methyl]indolizin-8-yl]oxyacetic acid1894718: Inhibition of human group IIA phospholipase A2 preincubated with compound for 10 mins followed by enzyme addition and measured after 30 mins by PC/DOC assayic500.0030uM
2-[1-(cyclohexylmethyl)-2-methyl-3-oxamoylbenzo[g]indol-4-yl]oxyacetic acid242401: Inhibitory concentration against human nonpancreatic secretory phospholipase A2ic500.0040uM
2-[1-[(2-benzylphenyl)methyl]-2-ethyl-3-oxamoylindol-4-yl]oxyacetic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0040uM
2-[1-(2-amino-2-oxoethyl)-2-ethyl-3-(naphthalen-1-ylmethyl)indolizin-8-yl]oxyacetic acid1894718: Inhibition of human group IIA phospholipase A2 preincubated with compound for 10 mins followed by enzyme addition and measured after 30 mins by PC/DOC assayic500.0050uM
2-[(1-benzyl-2-methyl-3-oxamoyl-7,8-dihydro-6H-cyclopenta[g]indol-4-yl)oxy]acetic acid242401: Inhibitory concentration against human nonpancreatic secretory phospholipase A2ic500.0060uM
(2R)-2-(1-benzyl-2-methyl-3-oxamoylindol-4-yl)oxypropanoic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0060uM
2-[2-cyclopropyl-3-oxamoyl-1-[(2-phenylphenyl)methyl]indol-4-yl]oxyacetic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0060uM
2-[1-[(2,6-dichlorophenyl)methyl]-2-methyl-3-oxamoylindol-4-yl]oxyacetic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0060uM
2-[2-ethyl-3-oxamoyl-1-[(2-phenylphenyl)methyl]indol-4-yl]oxyacetic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0060uM
2-[(1-benzyl-2-ethyl-3-oxamoyl-7,8-dihydro-6H-cyclopenta[g]indol-4-yl)oxy]acetic acid242401: Inhibitory concentration against human nonpancreatic secretory phospholipase A2ic500.0070uM
2-(1-benzyl-2-ethyl-3-oxamoylindol-4-yl)oxyacetic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0070uM
2-[2-methyl-3-[(2-phenylphenyl)methyl]-8-(tetrazol-1-ylmethoxy)indolizin-1-yl]-2-oxoacetamide1894717: Inhibition of human group IIA phospholipase A2 incubated for 30 mins by automatic plate reader analysisic500.0070uM
2-[1-[(3-chlorophenyl)methyl]-2-ethyl-3-oxamoylindol-4-yl]oxyacetic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0070uM
2-(2-methyl-1-octyl-3-oxamoylindol-4-yl)oxyacetic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0080uM
2-(1-benzyl-2-ethyl-6-methyl-3-oxamoylindol-4-yl)acetic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0080uM
2-[2-methyl-3-oxamoyl-1-[(3-phenylphenyl)methyl]indol-4-yl]oxyacetic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0080uM
2-[[1-[(2-fluorophenyl)methyl]-2-methyl-3-oxamoyl-7,8-dihydro-6H-cyclopenta[g]indol-4-yl]oxy]acetic acid242469: Inhibitory concentration against human nonpancreatic secretory phospholipase A2ic500.0090uM
2-[1-[(2-chlorophenyl)methyl]-2-methyl-3-oxamoylindol-4-yl]oxyacetic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0090uM
2-(1-benzyl-2-methyl-3-oxamoylindol-4-yl)oxypropanoic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0090uM
2-[2-methyl-1-(naphthalen-1-ylmethyl)-3-oxamoylindol-4-yl]oxyacetic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0090uM
2-[(1-benzyl-2-methyl-3-oxamoyl-6,7,8,9-tetrahydrobenzo[g]indol-4-yl)oxy]acetic acid242469: Inhibitory concentration against human nonpancreatic secretory phospholipase A2ic500.0100uM
2-[[1-[(3-fluorophenyl)methyl]-2-methyl-3-oxamoyl-7,8-dihydro-6H-cyclopenta[g]indol-4-yl]oxy]acetic acid242469: Inhibitory concentration against human nonpancreatic secretory phospholipase A2ic500.0100uM
(2R)-3-[3-(5-benzyl-2-carbamoylphenyl)phenyl]-2-methylpropanoic acid1631095: Inhibition of recombinant sPLA2-2A (unknown origin) using 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine as substrate preincubated for 10 mins followed by substrate addition measured after 60 mins by colorimetric methodic500.0100uM
sodium 2-[3-(2-amino-2-oxoethyl)-2-methyl-1-[(2-phenylphenyl)methyl]indol-4-yl]oxyacetate158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0100uM
2-[(1-benzyl-2-ethyl-3-oxamoyl-6,7,8,9-tetrahydrobenzo[g]indol-4-yl)oxy]acetic acid242469: Inhibitory concentration against human nonpancreatic secretory phospholipase A2ic500.0110uM
2-(1-benzyl-2-ethyl-3-oxamoylindol-4-yl)oxypropanoic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0110uM
3-[3-(5-benzyl-2-carbamoylphenyl)phenyl]-2-methylpropanoic acid1631095: Inhibition of recombinant sPLA2-2A (unknown origin) using 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine as substrate preincubated for 10 mins followed by substrate addition measured after 60 mins by colorimetric methodic500.0110uM
2-(1-benzyl-2-methyl-3-oxamoylindol-4-yl)oxyacetic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0110uM
3-[3-(5-benzyl-2-carbamoylphenyl)phenyl]propanoic acid1631095: Inhibition of recombinant sPLA2-2A (unknown origin) using 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine as substrate preincubated for 10 mins followed by substrate addition measured after 60 mins by colorimetric methodic500.0120uM
2-(1-benzyl-2-ethyl-4-methoxybenzo[g]indol-3-yl)-2-oxoacetamide341241: Inhibition of human group2A phospholipase A2 fluorimetric assayic500.0140uM
2-[2-methyl-1-[(2-methylphenyl)methyl]-3-oxamoylindol-4-yl]oxyacetic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0150uM
3-[3-(2-amino-2-oxoethyl)-1-benzyl-2-ethyl-6-methylindol-5-yl]oxypropylphosphonic acid158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0150uM
3-[3-(2-amino-2-oxoethyl)-1-[(3-chlorophenyl)methyl]-2-ethylindol-5-yl]oxypropylphosphonic acid158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0160uM
3-[3-(5-benzyl-2-carbamoylphenyl)phenyl]-2-cyclopropylpropanoic acid1631095: Inhibition of recombinant sPLA2-2A (unknown origin) using 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine as substrate preincubated for 10 mins followed by substrate addition measured after 60 mins by colorimetric methodic500.0180uM
4-[3-(2-amino-2-oxoethyl)-1-benzyl-2-bromo-6-chloroindol-5-yl]oxybutanoic acid158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0200uM
sodium 2-[3-(2-amino-2-oxoethyl)-1-[(3-chlorophenyl)methyl]-2-methylindol-4-yl]oxyacetate159096: Inhibitory activity against porcine pancreatic Phospholipase A2ic500.0200uM
(4S)-5-(4-benzylphenyl)sulfanyl-4-(7-phenylheptanoylamino)pentanoic acid158933: Compound was tested for in vitro activity against S-phospholipase A2 (s-PLA2) isolated from human plateletsic500.0210uM
2-[[3-(5-benzyl-2-carbamoylphenyl)phenyl]methyl]butanoic acid1631095: Inhibition of recombinant sPLA2-2A (unknown origin) using 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine as substrate preincubated for 10 mins followed by substrate addition measured after 60 mins by colorimetric methodic500.0210uM
4-[3-(2-amino-2-oxoethyl)-1-benzyl-2-ethyl-6-methylindol-5-yl]sulfanylbutanoic acid158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0220uM
3-[3-(2-amino-2-oxoethyl)-2-methyl-1-[(2-phenylphenyl)methyl]indol-5-yl]oxypropylphosphonic acid158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0220uM
4-[3-(2-amino-2-oxoethyl)-1-benzyl-2-ethylindol-5-yl]sulfanylbutanoic acid158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0230uM
3-[3-(2-amino-2-oxoethyl)-1-benzyl-2-ethylindol-5-yl]oxypropylphosphonic acid158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0230uM
2-[3-(2-amino-2-oxoethyl)-1-benzyl-2-ethylindol-4-yl]oxyacetic acid158934: Inhibition of human non-pancreatic secretory phospholipase A2 (PLA2) in a chromogenic assayic500.0240uM
2-[1-[[2-[5-[2-[[3-(2-amino-2-oxoethyl)-5-methoxy-2-methylindol-1-yl]methyl]phenoxy]pentoxy]phenyl]methyl]-5-methoxy-2-methylindol-3-yl]acetamide1798357: Enzymatic Inhibition Assay from Article 10.1021/jm7010707: “Chemically induced dimerization of human nonpancreatic secretory phospholipase A2 by bis-indole derivatives.”ic500.0240uM
2-(1-benzyl-2-ethyl-3-oxamoylindol-4-yl)oxy-2-methylpropanoic acid158931: Inhibition of human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0250uM
2-(1-benzyl-2-ethyl-3-oxamoylindol-4-yl)oxy-4-phenylbutanoic acid158930: Inhibition of human nonpancreatic secretory Phospholipase A2 through DOC/PC assayic500.0260uM
2-[1-(benzenesulfonyl)-2-ethyl-3-oxamoylindol-4-yl]acetic acid158932: Compound was evaluated to inhibit human nonpancreatic secretory Phospholipase A2 through chromogenic assayic500.0280uM

CTD chemical–gene interactions

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

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects expression, affects cotreatment, increases expression6
trichostatin Aaffects cotreatment, increases expression3
Decitabineincreases expression, increases reaction, decreases reaction, affects expression, decreases methylation3
Tetrachlorodibenzodioxinincreases expression3
Cyclosporinedecreases methylation, decreases expression3
sodium arseniteaffects methylation, increases expression2
2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-onedecreases reaction, increases secretion, increases expression, increases reaction2
entinostatincreases expression, affects cotreatment2
belinostatincreases expression, affects cotreatment2
(+)-JQ1 compounddecreases expression2
Vorinostataffects cotreatment, increases expression2
Panobinostatincreases expression, affects cotreatment2
Dexamethasoneincreases expression, affects cotreatment2
Diethylhexyl Phthalatedecreases expression2
Lipopolysaccharidesaffects cotreatment, increases expression2
Quercetindecreases expression, increases expression2
Tretinoinincreases expression2
mangiferindecreases activity1
mono-(2-ethylhexyl)phthalatedecreases expression1
periodate-oxidized adenosineaffects expression1
ciglitazoneaffects binding, increases expression1
caffeic acid phenethyl esterdecreases reaction, increases expression, increases reaction1
octa-2,4,6-trienoic acidincreases expression1
kaempferol-3-O-galactosideaffects activity1
13-cis-12-(3’-carboxyphenyl)retinoic acidaffects binding, decreases activity1
quercetagetinaffects activity1
4-(4-fluorophenyl)-2-(4-hydroxyphenyl)-5-(4-pyridyl)imidazoledecreases reaction, increases secretion1
CGP 52608affects binding, increases reaction1
LY 311727decreases activity1
rofecoxibaffects expression1

ChEMBL screening assays

111 unique, capped per target: 100 binding, 11 functional

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL1005696BindingInhibition of human synovial recombinant group 2 secretory phospholipase A2 at 10 uM by liquid scintillation countingNew sesquiterpene derivatives from the sponge Dysidea species with a selective inhibitor profile against human phospholipase A2 and other leukocyte functions. — J Nat Prod
CHEMBL6193897FunctionalInhibition of human PLA2G2A in recombinant human protein using Biochemical human PLA2G2A assayData for DCP probe BAY-439

Clinical trials (associated diseases)

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

TrialPhaseStatusTitle
NCT00114829PHASE4UNKNOWNPreoperative Assessment of Colon Tumor
NCT00114842PHASE4COMPLETEDMagnetic Resonance (MR) Colonography With Fecal Tagging
NCT00114946PHASE4TERMINATEDA Study to Compare Two Avastin-Based Treatment Regimens for the Treatment of Metastatic Colorectal Cancer
NCT00122720PHASE4COMPLETEDThe Effect of Darbepoetin Upon Rehabilitation for Colorectal Cancer Surgery
NCT00129870PHASE4TERMINATEDCONCEPT: Comparison of Oxaliplatin vs Conventional Methods With Calcium/Magnesium in First-Line Metastatic Colorectal Cancer
NCT00138060PHASE4COMPLETEDToxicity/Benefit Ratio Optimization of Chemotherapy in Colorectal Cancer (CRC) Patients by Determination of Individual Genotypic Determinants
NCT00216424PHASE4TERMINATEDCapecitabine (Xeloda) and Radiation for Patients With Rectosigmoid Carcinoma
NCT00327093PHASE4TERMINATEDElaboration of a Model for Predicting Efficacy of Monoclonal Antibodies (Cetuximab and Bevacizumab) in Patients With Colorectal Cancer and Liver Metastases
NCT00332943PHASE4COMPLETEDMR Colonography With Fecal Tagging. Barium vs. BariumFerumoxsil
NCT00441311PHASE4COMPLETEDDissemination of Colorectal Cancer Screening to Primary Care Physicians
NCT00460837PHASE4WITHDRAWNComparison of Bowel Preparation in Virtual Colonoscopy (VC) - Patient Experience
NCT00473980PHASE4COMPLETEDPreoperative Non-steroidal Anti-inflammatory Drugs(NSAID) to Colorectal Cancer Patients
NCT00488904PHASE4COMPLETEDOmega-3 Fatty Acids and Postoperative Complications After Colorectal Surgery
NCT00496678PHASE4COMPLETEDTrial of Patient Navigation-Activation
NCT00502671PHASE4COMPLETEDA Study of Xeloda (Capecitabine) as Adjuvant Monotherapy in Patients With Colon Cancer.
NCT00559676PHASE4COMPLETEDStudy of Biomarkers in Patients Undergoing Chemotherapy for Metastatic Colorectal Cancer
NCT00577031PHASE4COMPLETEDOBELIX Study: A Study of Avastin (Bevacizumab) in Combination With XELOX in Patients With Metastatic Cancer of the Colon or Rectum.
NCT00626054PHASE4COMPLETEDComparison of Two Methods of Administration of a PEG Solution
NCT00812864PHASE4COMPLETEDPharmacokinetic Study of Capecitabine in Elderly Cancer Patient (≥ 75 Years)
NCT00868569PHASE4UNKNOWNTranshepatic Arterial Chemotherapy (TAC) Versus Transcatheter Arterial Chemoembolization (TACE) Plus Folfox4 as the Treatment of Unresectable Liver Metastasis of Colorectal Cancer
NCT00868816PHASE4COMPLETEDOxaliplatine Based Adjuvant Chemotherapy for Stage II/III Colorectal Cancer: 8 Cycles Versus 12 Cycles
NCT00874406PHASE4UNKNOWNPreoperative Transhepatic Arterial Chemotherapy (TAC) in the Treatment of Liver Metastasis of Resectable Colorectal Cancer
NCT00928928PHASE4COMPLETEDOxidative Stress Markers in Open and Laparoscopic Colectomy for Cancer
NCT00942461PHASE4COMPLETEDInflammatory Response in Laparoscopic and Open Colectomy
NCT01023633PHASE4UNKNOWNOPTIMOX1 in Chinese mCRC Patients
NCT01271582PHASE4UNKNOWNInvestigation of Association Between UGT1A1 Polymorphisms and Irinotecan Toxicity in Korean Patients
NCT01315990PHASE4UNKNOWNFOLFIRI in Combination With Cetuximab in the First-line Treatment of Metastatic Colorectal Cancer Including a Regular Dermal Prophylaxis to Prevent Acneiforme Follicular Exanthema
NCT01493713PHASE4COMPLETEDCorrelation Between RECIST, Morphologic Response by CT- Histopathologic Response in Hepatic Metastasis Secondary to Colorectal Cancer
NCT01609660PHASE4COMPLETEDImpact of Probiotics on the Intestinal Microbiota
NCT01641458PHASE4COMPLETEDPharmacology-driven Dosing of Fluoropyrimidines in Cancer Patients
NCT01689792PHASE4COMPLETEDA Multi-centre Study Comparing the Polyp Detection Rate of Two Different Types of Bowel Preparation: a 2-litre Solution (MOVIPREP®) Versus a Hyperosmotic and Stimulant Combined Low Volume Bowel Preparation (Sodium Picosulfate and Magnesium Citrate)
NCT01695772PHASE4COMPLETEDA Study of Bevacizumab Plus 5-Flurouracil (5-FU) Based Doublet Chemotherapy as Neoadjuvant Therapy for Participants With Previously Untreated Unresectable Liver-Only Metastases From Colorectal Cancer
NCT01695863PHASE4COMPLETEDEfficacy and Patient Satisfaction of Miralax and Gatorade Versus Movi Prep
NCT01706822PHASE4TERMINATEDRadial Reload Laparoscopic LAR Case Series
NCT01740947PHASE4TERMINATEDDoes Administration of Antibiotics in Patients Undergoing Surgery for Colorectal Cancer Result in Less Complications and Better Prognosis?
NCT01831310PHASE4COMPLETEDNutrition for Colorectal Cancer Patients and Neutrophil Functions
NCT01841294PHASE4UNKNOWNNK Activity Modulation Induced by Intravenous Lidocaine During Colorectal Laparoscopic Surgery
NCT01959061PHASE4UNKNOWNEfficacy and Safety of Raltitrexed-based Transarterial Chemoembolisation(TACE)for Colorectal Cancer Liver Metastases
NCT02032953PHASE4UNKNOWNEnhancing the Anabolic Effect of Perioperative Nutrition With Insulin While Maintaining Normoglycemia
NCT02567331PHASE4COMPLETEDA Study of Capecitabine (Xeloda) in Patients With Metastatic Colorectal Cancer