Calcium-dependent secretion activator 1 is a protein that in humans is encoded by the CADPSgene.[1][2]
CADPS encodes a novel neural/endocrine-specific cytosolic and peripheral membrane protein required for the Ca2+-regulated exocytosis of secretory vesicles. CADPS acts at a stage in exocytosis that follows ATP-dependent priming, which involves the essential synthesis of phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2). Alternative splicing has been observed at this locus and three variants, encoding distinct isoforms, are described.[2]
References
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Nakajima D, Okazaki N, Yamakawa H, et al. (2003). "Construction of expression-ready cDNA clones for KIAA genes: manual curation of 330 KIAA cDNA clones". DNA Res. 9 (3): 99–106. doi:10.1093/dnares/9.3.99. PMID12168954.
Nishizaki T, Walent JH, Kowalchyk JA, Martin TF (1992). "A key role for a 145-kDa cytosolic protein in the stimulation of Ca(2+)-dependent secretion by protein kinase C.". J. Biol. Chem. 267 (33): 23972–81. PMID1429734.
Ann K, Kowalchyk JA, Loyet KM, Martin TF (1997). "Novel Ca2+-binding protein (CAPS) related to UNC-31 required for Ca2+-activated exocytosis". J. Biol. Chem. 272 (32): 19637–40. doi:10.1074/jbc.272.32.19637. PMID9289490.
Loyet KM, Kowalchyk JA, Chaudhary A, et al. (1998). "Specific binding of phosphatidylinositol 4,5-bisphosphate to calcium-dependent activator protein for secretion (CAPS), a potential phosphoinositide effector protein for regulated exocytosis". J. Biol. Chem. 273 (14): 8337–43. doi:10.1074/jbc.273.14.8337. PMID9525942.
Berwin B, Floor E, Martin TF (1998). "CAPS (mammalian UNC-31) protein localizes to membranes involved in dense-core vesicle exocytosis". Neuron. 21 (1): 137–45. doi:10.1016/S0896-6273(00)80521-8. PMID9697858.
Hirosawa M, Nagase T, Ishikawa K, et al. (2000). "Characterization of cDNA clones selected by the GeneMark analysis from size-fractionated cDNA libraries from human brain". DNA Res. 6 (5): 329–36. doi:10.1093/dnares/6.5.329. PMID10574461.
Cisternas FA, Vincent JB, Scherer SW, Ray PN (2003). "Cloning and characterization of human CADPS and CADPS2, new members of the Ca2+-dependent activator for secretion protein family". Genomics. 81 (3): 279–91. doi:10.1016/S0888-7543(02)00040-X. PMID12659812.
Speidel D, Varoqueaux F, Enk C, et al. (2004). "A family of Ca2+-dependent activator proteins for secretion: comparative analysis of structure, expression, localization, and function". J. Biol. Chem. 278 (52): 52802–9. doi:10.1074/jbc.M304727200. PMID14530279.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.
Binda AV, Kabbani N, Levenson R (2005). "Regulation of dense core vesicle release from PC12 cells by interaction between the D2 dopamine receptor and calcium-dependent activator protein for secretion (CAPS)". Biochem. Pharmacol. 69 (10): 1451–61. doi:10.1016/j.bcp.2005.02.015. PMID15857609.