Caricain

Definition:

EC Tree > 3 Hydrolases > 3.4 Acting on peptide bonds (peptidases) > 3.4.22 Cysteine endopeptidases > 3.4.22.30 Caricain
Caricain is a cysteine endopeptidase from the papaya plant Carica papaya, belonging to peptidase family C1 (papain family). It hydrolyzes proteins with broad specificity for peptide bonds, similar to papain and chymopapain. In the plant it contributes to latex defense and protein reserve turnover. It features a papain-like catalytic fold closely related to chymopapain and papain, with a similar acidic pH optimum.

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