NCBI Accession #
NP_172932.1
NCBI GenBank Nucleotide #
NM_101348.4
NCBI Official Full Name
RNA-dependent RNA polymerase 1
NCBI Official Symbol
RDR1
NCBI Official Synonym Symbols
AtRDR1; ATRDRP1; F10B6.19; F10B6_19; RNA-dependent RNA polymerase 1
NCBI Protein Information
RNA-dependent RNA polymerase 1
NCBI Summary
Encodes RNA-dependent RNA polymerase. While not required for virus-induced post-transcriptional gene silencing (PTGS), it can promote turnover of viral RNAs in infected plants. Nomenclature according to Xie, et al. (2004). Involved in the production of Cucumber Mosaic Virus siRNAs.
UniProt Synonym Gene Names
RDRP1; AtRDRP1
UniProt Protein Name
RNA-dependent RNA polymerase 1
UniProt Synonym Protein Names
RNA-directed RNA polymerase 1
UniProt Primary Accession #
Q9LQV2
UniProt Secondary Accession #
Q8H1K9; Q9ZRX5
UniProt Related Accession #
Q9LQV2
UniProt Comments
RNA-dependent direct polymerase involved in antiviral silencing. Required for the production of some small RNAs (mainly 21 and some 22 nucleotides) derived from the crucifer-infecting tobamovirus (TMV-cg). Required for turnip mosaic virus (TuMV) silencing and accumulation of viral siRNAs. Involved in cucumber mosaic virus (CMV) silencing. Required for the biogenesis of viral secondary siRNAs, process that follows the production of primary siRNAs derived from viral RNA replication. Specifically targets the positive-strand of the 3 RNA genomes of CMV and preferentially amplifies the 5'-terminal siRNAs of each viral genomic RNA. Not involved in the production of siRNAs derived from a single-stranded 336-nucleotide satellite RNA of CMV.