FUNCTION: Ca(2+)-dependent actin filament-severing protein that has a regulatory function in exocytosis by affecting the organization of the microfilament network underneath the plasma membrane (PubMed:8547642, PubMed:26365202). Severing activity is inhibited by phosphatidylinositol 4,5-bis-phosphat...
FUNCTION: Ca(2+)-dependent actin filament-severing protein that has a regulatory function in exocytosis by affecting the organization of the microfilament network underneath the plasma membrane (PubMed:8547642, PubMed:26365202). Severing activity is inhibited by phosphatidylinositol 4,5-bis-phosphate (PIP2) (By similarity). In vitro, also has barbed end capping and nucleating activities in the presence of Ca(2+). Required for megakaryocyte differentiation, maturation, polyploidization and apoptosis with the release of platelet-like particles (PubMed:11568009). Plays a role in osteoclastogenesis (OCG) and actin cytoskeletal organization in osteoclasts (By similarity). Regulates chondrocyte proliferation and differentiation (By similarity). Inhibits cell proliferation and tumorigenesis. Signaling is mediated by MAPK, p38 and JNK pathways (PubMed:11568009). {ECO:0000250|UniProtKB:Q28046, ECO:0000250|UniProtKB:Q5ZIV9, ECO:0000250|UniProtKB:Q60604, ECO:0000269|PubMed:11568009, ECO:0000269|PubMed:26365202, ECO:0000269|PubMed:8547642}.
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GO - Biological processes (BP):
actin filament capping [GO:0051693]; actin filament severing [GO:0051014]; actin nucleation [GO:0045010]; actin polymerization or depolymerization [GO:0008154]; barbed-end actin filament capping [GO:0051016]; calcium-ion regulated exocytosis [GO:0017156]; cell projection assembly [GO:0030031]; centr...
actin filament capping [GO:0051693]; actin filament severing [GO:0051014]; actin nucleation [GO:0045010]; actin polymerization or depolymerization [GO:0008154]; barbed-end actin filament capping [GO:0051016]; calcium-ion regulated exocytosis [GO:0017156]; cell projection assembly [GO:0030031]; central nervous system development [GO:0007417]; negative regulation of cell population proliferation [GO:0008285]; positive regulation of actin nucleation [GO:0051127]; positive regulation of apoptotic process [GO:0043065]; positive regulation of megakaryocyte differentiation [GO:0045654]; positive regulation of secretion [GO:0051047]; regulation of chondrocyte differentiation [GO:0032330]; sequestering of actin monomers [GO:0042989]
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GO - Molecular function (MF):
1-phosphatidylinositol binding [GO:0005545]; actin binding [GO:0003779]; actin filament binding [GO:0051015]; calcium ion binding [GO:0005509]; phosphatidylinositol-4,5-bisphosphate binding [GO:0005546]; phosphatidylserine binding [GO:0001786]...
1-phosphatidylinositol binding [GO:0005545]; actin binding [GO:0003779]; actin filament binding [GO:0051015]; calcium ion binding [GO:0005509]; phosphatidylinositol-4,5-bisphosphate binding [GO:0005546]; phosphatidylserine binding [GO:0001786]
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GO - Cellular component (CC):
actin cytoskeleton [GO:0015629]; brush border [GO:0005903]; cell cortex [GO:0005938]; cell junction [GO:0030054]; cell projection [GO:0042995]; cytoplasm [GO:0005737]; extracellular exosome [GO:0070062]; podosome [GO:0002102]...
actin cytoskeleton [GO:0015629]; brush border [GO:0005903]; cell cortex [GO:0005938]; cell junction [GO:0030054]; cell projection [GO:0042995]; cytoplasm [GO:0005737]; extracellular exosome [GO:0070062]; podosome [GO:0002102]
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