DNA-directed RNA polymerases IV and V subunit 4

UniProtKB accession:  Q6DBA5

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UniProtKB description:  DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerases IV and V which mediate short-interfering RNAs (siRNA) accumulation and subsequent RNA-directed DNA methylation-dependent (RdDM) transcriptional gene silencing (TGS) of endogenous repeated sequences, including transposable elements. Required for the de novo DNA methylation directed by the RdDM pathway.