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Literature summary for 3.4.24.42 extracted from

  • Bjarnason, J.B.; Fox, J.W.
    Characterization of two hemorrhagic zinc proteinases, toxin c and toxin d, from western diamondback rattlesnake (Crotalus atrox) venom (1987), Biochim. Biophys. Acta, 911, 356-363.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
1,10-phenanthroline
-
Crotalus atrox
EDTA
-
Crotalus atrox
additional information no inhibition by aprotinin, PMSF Crotalus atrox

Metals/Ions

Metals/Ions Comment Organism Structure
Zn2+ zinc metalloproteinase Crotalus atrox
Zn2+ 0.86 mol zinc/mol enzyme Crotalus atrox

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
additional information
-
amino acid composition Crotalus atrox
additional information
-
isozymes Cc and Cd share identical antigenic structures Crotalus atrox

Organism

Organism UniProt Comment Textmining
Crotalus atrox
-
Western diamondback rattlesnake
-

Posttranslational Modification

Posttranslational Modification Comment Organism
additional information no glycoprotein Crotalus atrox

Source Tissue

Source Tissue Comment Organism Textmining
venom
-
Crotalus atrox
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
hide powder azure + H2O
-
Crotalus atrox ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
additional information
-
pI: 6.2 (isozyme Ht-c) Crotalus atrox
additional information
-
pI: 6.1 (isozyme Ht-d) Crotalus atrox
8.3
-
hide powder azure, isozyme Ht-c Crotalus atrox
9
-
hide powder azure, isozyme Ht-d Crotalus atrox

pH Range

pH Minimum pH Maximum Comment Organism
7.3 10 about half-maximal activity at pH 7.3 and 10, isozyme Ht-d Crotalus atrox
7.5 9.8 about half-maximal activity at pH 7.5 and 9.8, isozyme Ht-c Crotalus atrox