CATH Classification

Domain Context

CATH Clusters

Superfamily 2.40.50.150
Functional Family DNA-directed RNA polymerase subunit beta

Enzyme Information

2.7.7.6
DNA-directed RNA polymerase.
based on mapping to UniProt P0A8V2
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
P13338
VG33_BPT4
Escherichia virus T4
RNA polymerase-associated protein Gp33

PDB Structure

PDB 3TBI
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structure of T4 gp33 bound to E. coli RNAP beta-flap domain
Twist, K.A.F., Campbell, E.A., Darst, S.A., Geiduschek, E.P., Hochschild, A., Deighan, P.
To be Published