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Accepted name: scytalidopepsin A
Reaction: Hydrolysis of proteins with specificity similar to that of pepsin A, but also cleaves Cys(SO3H)
┼Gly and Leu 7 ┼Val in the B chain of insulin 17
Other name(s): Scytalidium aspartic proteinase A;
Scytalidium lignicolum aspartic proteinase; Scytalidium lignicolum aspartic proteinase A-2; Scytalidium lignicolum aspartic proteinase A-I; Scytalidium lignicolum aspartic proteinase C; Scytalidium lignicolum carboxyl proteinase; Scytalidium lignicolum acid proteinase
Comments: Isolated from the imperfect fungus
Scytalidium lignicolum. Not inhibited by pepstatin-Ac, methyl 2-diazoacetamidohexanoate or 1,2-epoxy-3-( p-nitrophenyl)propane. A related enzyme from the same organism, proteinase C, is also insensitive to these inhibitors and has M = 406,000  r
Links to other databases:
BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 42613-34-3
Oda, K. and Murao, S. Purification and some enzymatic properties of acid protease A and B of
Scytalidium lignicolum ATCC 24568. Agric. Biol. Chem. 38 (1974) 2435–2444.
Oda, K. and Murao, S. Action of
Scytalidium lignicolum acid proteases on insulin B-chain. Agric. Biol. Chem. 40 (1976) 1221–1225.
Oda, K., Torishima, H. and Murao, S. Purification and characterization of acid proteinase C of
Scytalidium lignicolum ATCC 24568. Agric. Biol. Chem. 50 (1986) 651–658.
[EC 188.8.131.52 created 1992]
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