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IUBMB Comments A 22.5 kDa endopeptidase from the venom of the jararaca snake (Bothrops jararaca ), insensitive to phosphoramidon at 0.5 mM. In peptidase family M12 (astacin family)
The expected taxonomic range for this enzyme is: Bothrops jararaca
Reaction Schemes
Cleavage of Gln4-/-His, Ser9-/-His and Ala14-/-Leu of insulin B chain and Pro-/-Phe of angiotensin I
Synonyms bothrolysin, j protease, more
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Bothrops metalloendopeptidase J
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J Protease
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Cleavage of Gln4-/-His, Ser9-/-His and Ala14-/-Leu of insulin B chain and Pro-/-Phe of angiotensin I
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hydrolysis of peptide bond
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angiotensin I + H2O
Asp-Arg-Val-Tyr-Ile-His-Pro + Phe-His-Leu
casein + H2O
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Substrates: - Products: -
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insulin B chain + H2O
FVNQ + HLCGS + HLVEA + LYLVCGERGFFYTPKA
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Substrates: - Products: -
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Insulin B-chain + H2O
Hydrolyzed insulin B-chain
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Substrates: cleavage of Gln4-His, Ser9-His and Ala14-Leu Products: -
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angiotensin I + H2O
Asp-Arg-Val-Tyr-Ile-His-Pro + Phe-His-Leu
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Substrates: cleavage of Pro-Phe Products: -
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angiotensin I + H2O
Asp-Arg-Val-Tyr-Ile-His-Pro + Phe-His-Leu
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Substrates: - Products: -
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Ca2+
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activates
Ca2+
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increases reaction velocity, half-maximum activation at 0.4 mM
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5,5'-dithiobis(2-nitrobenzoic acid)
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1 mM: 70% inhibition, in presence of 2 mM Ca2+: 30% inhibition
DM43
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serum from opossum, inhibits the fibrinogenolytic activity of bothrolysin and forms a stable complex with it
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DTNB
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inhibitory, partially prevented by addition of Ca2+
Protein inhibitor
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from blood plasma of Bothrops jararaca, completely inhibits
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1,10-phenanthroline
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+ 4 mM Ca2+: 85% inhibition
1,10-phenanthroline
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totally inhibits at 0.1 mM
EDTA
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0.1 mM: complete inhibition
EDTA
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totally inhibits at 0.1 mM
additional information
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phosphoramidon, leupeptin, epoxysuccinyl derivatives e.g. E-64, Ep-475 or Ep-479, all 0.5 mM, are no inhibitors
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additional information
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not inhibited by phosphoramidon at 0.5 mM and E-64 and its derivates
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brenda
jararaca snake
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brenda
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Highest Expressing Human Cell Lines
Filter by:
Cell Line Links
Gene Links
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VMXBN_BOTJA
29
0
3433
Swiss-Prot
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23000
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23000
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1 * 23000, Bothrops jararaca, SDS-PAGE
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monomer
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1 * 23000, Bothrops jararaca, SDS-PAGE
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by column chromatography
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Tanizaki, M.M.; Zingali, R.B.; Kawazaki, H.; Imajoh, S.; Yamazaki, S.; Suzuki, K.
Purification and some characteristics of a zinc metalloprotease from the venom of Bothrops jararaca (jararaca)
Toxicon
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747-755
1989
Bothrops jararaca
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Tanizaki, M.M.
Bothrolysin
Handbook Of Proteolytic Enzymes(Barrett,A. J. ,Rawlings,N. D. ,Woessner,J. F. ,Eds. )Academic Press
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657-658
2004
Bothrops jararaca
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brenda
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