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Cyanophycinase

Cyanophycinase (, cyanophycin degrading enzyme, beta-Asp-Arg hydrolysing enzyme, CGPase, CphB, CphE, cyanophycin granule polypeptidase, extracellular CGPase) is an enzyme. It catalyses the following chemical reaction

[L-Asp(4-L-Arg)] + HO $\rightleftharpoons$ [L-Asp(4-L-Arg)] + L-Asp(4-L-Arg)

The enzyme is highly specific for the branched polypeptide cyanophycin.