Helper component proteinase

Updated on Dec 17, 2024

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EC number 3.4.22.45 IntEnz IntEnz view ExPASy NiceZyme view		CAS number 124566-20-7 BRENDA BRENDA entry KEGG KEGG entry

Helper-component proteinase (EC 3.4.22.45, HC-Pro) is an enzyme. This enzyme catalyses the following chemical reaction

Hydrolyses a Gly-Gly bond at its own C-terminus, commonly in the sequence -Tyr-Xaa-Val-Gly-Gly, in the processing of the potyviral polyprotein

This enzyme is present in many potyviruses.

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