CATH Classification

Domain Context

CATH Clusters

Superfamily RNA polymerase, RBP11-like subunit
Functional Family DNA-directed RNA polymerase subunit alpha

Enzyme Information

2.7.7.6
DNA-directed RNA polymerase.
based on mapping to UniProt A7ZSI4
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)

P00579
RPOD_ECOLI
Escherichia coli K-12
RNA polymerase sigma factor RpoD
A7ZSI4
RPOA_ECO24
Escherichia coli O139:H28 str. E24377A
DNA-directed RNA polymerase subunit alpha

PDB Structure

PDB 4YFX
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
X-ray Crystal Structures of Escherichia coli RNA Polymerase with Switch Region Binding Inhibitors Enable Rational Design of Squaramides with an Improved Fraction Unbound to Human Plasma Protein.
Molodtsov, V., Fleming, P.R., Eyermann, C.J., Ferguson, A.D., Foulk, M.A., McKinney, D.C., Masse, C.E., Buurman, E.T., Murakami, K.S.
J.Med.Chem.