CATH Classification

Domain Context

CATH Clusters

Superfamily 3.90.940.10
Functional Family DNA-directed RNA polymerase subunit omega

Enzyme Information

2.7.7.6
DNA-directed RNA polymerase.
based on mapping to UniProt P0A800
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 (2)

P0A8V2
RPOB_ECOLI
Escherichia coli K-12
DNA-directed RNA polymerase subunit beta
R4YEY9
R4YEY9_KLEPR
Klebsiella pneumoniae subsp. rhinoscleromatis SB3432
RNA polymerase sigma-54 factor

PDB Structure

PDB 5BYH
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
TRANSCRIPTION. Structures of the RNA polymerase-sigma 54 reveal new and conserved regulatory strategies.
Yang, Y., Darbari, V.C., Zhang, N., Lu, D., Glyde, R., Wang, Y.P., Winkelman, J.T., Gourse, R.L., Murakami, K.S., Buck, M., Zhang, X.
Science