CATH Classification

Domain Context

CATH Clusters

Superfamily DNA-directed RNA polymerase, insert domain
Functional Family DNA-directed RNA polymerase subunit alpha

Enzyme Information

2.7.7.6
DNA-directed RNA polymerase.
based on mapping to UniProt Q9KWU8
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).
-!- Catalyzes DNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time. -!- Can initiate a chain de novo. -!- In eukaryotes three forms of the enzyme have been distinguished on the basis of sensitivity of alpha-amanitin, and the type of RNA synthesized. -!- See also EC 2.7.7.19 and EC 2.7.7.48.

UniProtKB Entries (1)

Q9EVV4
RPOZ_THEAQ
Thermus aquaticus
DNA-directed RNA polymerase subunit omega

PDB Structure

PDB 1HQM
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Bacterial RNA polymerase subunit omega and eukaryotic RNA polymerase subunit RPB6 are sequence, structural, and functional homologs and promote RNA polymerase assembly.
Minakhin, L., Bhagat, S., Brunning, A., Campbell, E.A., Darst, S.A., Ebright, R.H., Severinov, K.
Proc.Natl.Acad.Sci.USA
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