Cyanophycinase
Definition:
EC Tree > 3 Hydrolases > 3.4 Acting on peptide bonds (peptidases) > 3.4.15 Peptidyl-dipeptidases > 3.4.15.6 cyanophycinase
Cyanophycinase is a highly specific serine-type exopeptidase in family S51, specific for the branched polypeptide cyanophycin and not hydrolysing poly-L-aspartate or poly-L-arginine; it hydrolyses [L-Asp(4-L-Arg)]n plus water into [L-Asp(4-L-Arg)]n-1 and L-Asp(4-L-Arg), i.e. the beta-Asp-Arg dipeptide. By degrading the nitrogen-storage cyanophycin granule it releases beta-aspartyl-arginine during nitrogen starvation.
Cyanophycinase is a highly specific serine-type exopeptidase in family S51, specific for the branched polypeptide cyanophycin and not hydrolysing poly-L-aspartate or poly-L-arginine; it hydrolyses [L-Asp(4-L-Arg)]n plus water into [L-Asp(4-L-Arg)]n-1 and L-Asp(4-L-Arg), i.e. the beta-Asp-Arg dipeptide. By degrading the nitrogen-storage cyanophycin granule it releases beta-aspartyl-arginine during nitrogen starvation.
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