The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 655: Type 2 DNA topoisomerase 6 subunit A

There are 1 EC terms in this cluster

Please note: EC annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

Note: The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.

EC Term Annotations Evidence
DNA topoisomerase (ATP-hydrolyzing). [EC: 5.6.2.3]
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.
8 B0R4D2 B0R4D2 O05208 Q57815 Q5JH82 Q8TQF8 Q9HR32 Q9HR32