Protein
DNA-directed RNA polymerases II, IV and V subunit 8B
Organism
Arabidopsis thaliana
Function
DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs. Pol II is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relative to each other. 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.
Similarity
Belongs to the eukaryotic RPB8 RNA polymerase subunit family.
Sequence
MASNIIMFEDIFVVDKLDPDGKKFDKVTRVEARSHNLEMFMHLDVNTEVYPLAVGDKFTLAMAPTLNLDGTPDTGYFTPGAKKTLADKYEYIMHGKLYKISERDGKTPKAELYVSFGGLLMLLQGDPAHISHFELDQRLFLLMRKL