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- Table of Contents
Facts about Group 3 secretory phospholipase A2.
Preferential cleavage: 1-palmitoyl-2-linoleoyl- phosphatidylethanolamine (PE) > 1-palmitoyl-2-linoleoyl-PC > 1- palmitoyl-2-arachidonoyl-PC > 1-palmitoyl-2-arachidonoyl-PE. Plays a role in ciliogenesis.
Human | |
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Gene Name: | PLA2G3 |
Uniprot: | Q9NZ20 |
Entrez: | 50487 |
Belongs to: |
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phospholipase A2 family |
EC 3.1.1.4; GIII sPLA2; GIII-SPLA2; group 3 secretory phospholipase A2; group III secreted phospholipase A2; Group III secretory phospholipase A2; Phosphatidylcholine 2-acylhydrolase 3; phosphatidylcholine 2-acylhydrolase GIII; phospholipase A2, group III; SPLA2III; sPLA2-III
Mass (kDA):
57.167 kDA
Human | |
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Location: | 22q12.2 |
Sequence: | 22; NC_000022.11 (31134807..31140508, complement) |
Expressed in kidney, heart, liver, and skeletal muscle. Also present in placenta and peripheral blood leukocytes. Not detected in brain, colon, thymus, spleen and small intestine. In lung, expressed in bronchial epithelial cells and alveolar macrophages, but scarcely detected in alveolar epithelium, arterial walls and interstitial fibroblasts (at protein level). In joints of osteoarthritis and rheumatoid arthritis, expressed in endothelial cells (at protein level). In normal heart, detected in some vessels. In myocardial tissues with acute infarction, expressed in vascular endothelial cells adjacent to cardiomyocytes and those in lesions with granulation. Expression in cardiomyocytes is scarce (at protein level). In uterus, breast and colon cancers, detected in tumor cells and neighboring microvascular endothelium, but not in normal glandular tissues (at protein level).
Secreted. Cell membrane. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, centriole.
PMID: 10713052 by Valentin E., et al. Novel human secreted phospholipase A2 with homology to the group III bee venom enzyme.
PMID: 12522102 by Murakami M., et al. Cellular arachidonate-releasing function of novel classes of secretory phospholipase A2s (groups III and XII).