Term Name: | tyrosyl-RNA phosphodiesterase activity |
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Synonyms: | unlinkase activity, uridylylpolynucleotide-(5' P->O)- tyrosine phosphodiesterase activity, VPg unlinkase activity, Y-pUpN PDE activity |
Definition: | Catalysis of the hydrolysis of a 5' tyrosyl-RNA phosphodiester bond between a protein and RNA. In picornaviruses, this covalent bond connects VPg, a viral-encoded protein essential for RNA replication, to the 5' end of all nascent picornavirus genomes; it is cleaved from viral RNA prior to its engaging in protein synthesis. |
Ontology: | GO: Molecular Function [GO:0036317] QuickGO AmiGO |