RNA replicase polyprotein
UniProtKB accession: P10358
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Go to UniProtKB: P10358
UniProtKB description: Acts as a cysteine protease, methyltransferase and deubiquitinase (PubMed:22117220, PubMed:23966860, PubMed:29117247, PubMed:32732284) (Probable). The cysteine protease activity cleaves the polyprotein giving rise to mature proteins (PubMed:23966860). The methyltransferase domain is probably involved in viral RNA capping (Probable). The deubiquitylating activity counteracts the degradation of the viral polymerase mediated by the host ubiquitin-proteasome system (PubMed:22117220). The polymerase is thus stabilized and infectivity is increased (PubMed:22117220). Favors K63 poly-Ub linkage (PubMed:23345508).
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