Peptidase C6, potyvirus helper component proteinase (IPR001456)

Short name: Peptidase_C6

Domain relationships



This domain represents the potyvirus helper component protease found in genome polyproteins of potyviruses. It is is a cysteine peptidase belonging to the MEROPS peptidase family C6 (clan CA).

The genome polyprotein contains: N-terminal peptidase belonging to MEROPS peptidase family S30 (protein P1), helper component protease, MEROPS peptidase family C6, (EC:3.4.22) (HC-PRO), protein P3, 6KD protein (6K1), cytoplasmic inclusion protein (CI), 6KD protein 2 (6K2), genome-linked protein (VPG), nuclear inclusion protein A (EC:3.4.22), nuclear inclusion protein B (EC: and coat protein (CP).

The helper component-proteinase is required for aphid transmission.

GO terms

Biological Process

GO:0006508 proteolysis

Molecular Function

GO:0004197 cysteine-type endopeptidase activity

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.