CATH Classification

Domain Context

CATH Clusters

Superfamily 3.30.230.10
Functional Family DNA gyrase subunit B

Enzyme Information

5.99.1.3
DNA topoisomerase (ATP-hydrolyzing).
based on mapping to UniProt D6ZLV0
ATP-dependent breakage, passage and rejoining of double-stranded DNA.
-!- 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 5.99.1.2).
5.99.1.3
DNA topoisomerase (ATP-hydrolyzing).
based on mapping to UniProt Q3HZ71
ATP-dependent breakage, passage and rejoining of double-stranded DNA.
-!- 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 5.99.1.2).

UniProtKB Entries (2)

D6ZLV0
D6ZLV0_STRP0
Streptococcus pneumoniae TCH8431/19A
DNA topoisomerase 4 subunit A
Q3HZ71
Q3HZ71_STREE
Streptococcus pneumoniae
DNA topoisomerase 4 subunit B

PDB Structure

PDB 4I3H
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structure of an 'open' clamp type II topoisomerase-DNA complex provides a mechanism for DNA capture and transport.
Laponogov, I., Veselkov, D.A., Crevel, I.M., Pan, X.S., Fisher, L.M., Sanderson, M.R.
Nucleic Acids Res.
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