RNA-directed RNA polymerase

UniProtKB accession:  Q66929

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UniProtKB description:  RNA-dependent RNA polymerase, which replicates the viral genome composed of 2 RNA segments, RNA1 and RNA2 (Probable). Does not need an exogenous primer (PubMed:24466277). Also possesses a terminal nucleotidyl transferase (TNTase) activity (PubMed:24466277). The TNTase catalyzes the addition of nucleotide to the 3'-end of plus- and minus-stranded RNAs, probably to repair the 3'-end nucleotide loss (PubMed:24466277). Forms the open necked connection to the cytosol of the virus-induced replication vesicles (PubMed:36560715, PubMed:36693094, PubMed:32690711). Mediates viral RNA1 recruitment (PubMed:17301137).