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DNA-directed RNA polymerase III subunit RPC5; RNA polymerase III subunit C5; DNA-directed RNA polymerase III 80 kD polypeptide (POLR3E, KIAA1452)
Function:
- specific peripheral component of RNA polymerase 3
- essential for efficient transcription from both the type 2 VAI & type 3 U6 RNA polymerase 3 promoters
- role in sensing & limiting infection by intracellular bacteria & DNA viruses
- acts as nuclear & cytosolic DNA sensor involved in innate immune response
- can sense non-self dsDNA that serves as template for transcription into dsRNA
- the non-self RNA polymerase 3 transcripts, such as Epstein-Barr virus-encoded RNAs (EBERs) induce type 1 interferon & NF- Kappa-B through the RIG-I pathway
- interacts with POLR3D/RPC4
Compartment: nucleus
Alternative splicing: named isoforms=3
General
nuclear protein
phosphoprotein
protein subunit
Properties
SIZE: entity length = 708 aa
MW = 80 kD
COMPARTMENT: cell nucleus
MOTIF: Ser phosphorylation site {S161}
Ser phosphorylation site {S162}
Tyr phosphorylation site {Y224}
Ser phosphorylation site {S503}
Ser phosphorylation site {S522}
Database Correlations
UniProt Q9NVU0
Pfam PF04801
Entrez Gene 55718
Kegg hsa:55718
References
UniProt :accession Q9NVU0
Component-of
RNA polymerase 3