Calpain-2 catalytic subunit is a protein that in humans is encoded by the CAPN2gene.[5][6]
Function
The calpains, calcium-activated neutral proteases, are nonlysosomal, intracellular cysteine proteases. The mammalian calpains include ubiquitous, stomach-specific, and muscle-specific proteins. The ubiquitous enzymes consist of heterodimers with distinct large, catalytic subunits associated with a common small, regulatory subunit. This gene encodes the large subunit of the ubiquitous enzyme, calpain 2. Multiple heterogeneous transcriptional start sites in the 5' UTR have been reported.[7]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Imajoh S, Aoki K, Ohno S, Emori Y, Kawasaki H, Sugihara H, Suzuki K (1988). "Molecular cloning of the cDNA for the large subunit of the high-Ca2+-requiring form of human Ca2+-activated neutral protease". Biochemistry. 27 (21): 8122–8. doi:10.1021/bi00421a022. PMID2852952.
Reverter D, Sorimachi H, Bode W (2001). "The structure of calcium-free human m-calpain: implications for calcium activation and function". Trends Cardiovasc. Med. 11 (6): 222–9. doi:10.1016/S1050-1738(01)00112-8. PMID11673052.
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Ohno S, Minoshima S, Kudoh J, Fukuyama R, Shimizu Y, Ohmi-Imajoh S, Shimizu N, Suzuki K (1990). "Four genes for the calpain family locate on four distinct human chromosomes". Cytogenet. Cell Genet. 53 (4): 225–9. doi:10.1159/000132937. PMID2209092.
Ishiguro H, Higashiyama S, Namikawa C, Kunimatsu M, Takano E, Tanaka K, Ohkubo I, Murachi T, Sasaki M (1987). "Interaction of human calpains I and II with high molecular weight and low molecular weight kininogens and their heavy chain: mechanism of interaction and the role of divalent cations". Biochemistry. 26 (10): 2863–70. doi:10.1021/bi00384a030. PMID3038169.
Corasaniti MT, Navarra M, Catani MV, Melino G, Nisticò G, Finazzi-Agrò A (1996). "NMDA and HIV-1 coat protein, GP120, produce necrotic but not apoptotic cell death in human CHP100 neuroblastoma cultures via a mechanism involving calpain". Biochem. Biophys. Res. Commun. 229 (1): 299–304. doi:10.1006/bbrc.1996.1796. PMID8954122.
Fujitani K, Kambayashi J, Sakon M, Ohmi SI, Kawashima S, Yukawa M, Yano Y, Miyoshi H, Ikeda M, Shinoki N, Monden M (1997). "Identification of mu-, m-calpains and calpastatin and capture of mu-calpain activation in endothelial cells". J. Cell. Biochem. 66 (2): 197–209. doi:10.1002/(SICI)1097-4644(19970801)66:2<197::AID-JCB7>3.0.CO;2-L. PMID9213221. S2CID85163404.
Ueyama H, Kumamoto T, Fujimoto S, Murakami T, Tsuda T (1998). "Expression of three calpain isoform genes in human skeletal muscles". J. Neurol. Sci. 155 (2): 163–9. doi:10.1016/S0022-510X(97)00309-2. PMID9562261. S2CID205898607.