鈣蛋白酶9(英語:Calpain-9)是一種在人類中由CAPN9基因編碼的蛋白質。[6][7][8]
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鈣蛋白酶是普遍存在的、保守的鈣依賴性半胱氨酸蛋白酶家族。鈣蛋白酶是由不變的小亞基和可變的大亞基組成的異二聚體。大亞基具有半胱氨酸蛋白酶結構域,而兩個亞基都具有鈣結合結構域。鈣蛋白酶與神經退行性過程有關,因為它們的活化可以由鈣流入和氧化應激觸發。由該基因編碼的蛋白質主要在胃和小腸中表達,並可能在消化道中具有特殊功能。該基因被認為與胃癌有關。該基因可編碼不同亞型的多個可變剪接轉錄物變體。[8]
- Huang Y, Wang KK. The calpain family and human disease. Trends in Molecular Medicine. 2001, 7 (8): 355–362. PMID 11516996. doi:10.1016/S1471-4914(01)02049-4.
- Suzuki K, Sorimachi H, Yoshizawa T, et al. Calpain: novel family members, activation, and physiologic function. Biol. Chem. Hoppe-Seyler. 1996, 376 (9): 523–9. PMID 8561910. doi:10.1515/bchm3.1995.376.9.523.
- Davis TL, Walker JR, Finerty PJ, et al. The crystal structures of human calpains 1 and 9 imply diverse mechanisms of action and auto-inhibition. J. Mol. Biol. 2007, 366 (1): 216–229. PMID 17157313. doi:10.1016/j.jmb.2006.11.037.
- Strausberg RL, Feingold EA, Grouse LH, et al. Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences. Proc. Natl. Acad. Sci. U.S.A. 2003, 99 (26): 16899–16903. Bibcode:2002PNAS...9916899M. PMC 139241 . PMID 12477932. doi:10.1073/pnas.242603899 .
- Lee HJ, Tomioka S, Kinbara K, et al. Characterization of a human digestive tract-specific calpain, nCL-4, expressed in the baculovirus system. Arch. Biochem. Biophys. 1999, 362 (1): 22–31. PMID 9917325. doi:10.1006/abbi.1998.1021.
- Human CAPN9 genome location and CAPN9 gene details page in the UCSC Genome Browser.
- The MEROPS online database for peptidases and their inhibitors: C02.006
- PDB中UniProt可用的所有結構資訊之概述:O14815 (Human Calpain-9 (CAPN9)) 在PDBe-KB。