CATH Classification

Domain Context

CATH Clusters

Superfamily Topoisomerase, domain 3
Functional Family DNA gyrase subunit A

Enzyme Information

5.6.2.3
DNA topoisomerase (ATP-hydrolyzing).
based on mapping to UniProt P0AES4
ATP-dependent breakage, passage and rejoining of double-stranded DNA.
-!- The enzyme can introduce negative superhelical turns into double- stranded circular DNA. -!- One unit has nicking-closing activity, and another catalyzes super- twisting and hydrolysis of ATP (cf. EC 5.6.2.2). -!- Formerly EC 5.99.1.3.

UniProtKB Entries (1)

P0AES4
GYRA_ECOLI
Escherichia coli K-12
DNA gyrase subunit A

PDB Structure

PDB 3NUH
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
A domain insertion in Escherichia coli GyrB adopts a novel fold that plays a critical role in gyrase function.
Schoeffler, A.J., May, A.P., Berger, J.M.
Nucleic Acids Res.