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:

"
DNA gyrase/topoisomerase IV, subunit A, C-terminal
".

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 1: DNA gyrase subunit A

Please note: GO 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.

There are 6 GO terms relating to "molecular function"

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.
GO Term Annotations Evidence
DNA supercoiling activity GO:0034335
Catalytic introduction of supercoils in a DNA molecule or region thereof. In bacteria, negative supercoils are only introduced by DNA gyrase, a type II topoisomerase, but not all DNA gyrases are capable of introducing supercoils. In bacteria, the level of supercoiling varies widely between species and has been characterized properly in only a handful of organisms. The best characterized enzyme, from E.coli, is exceptionally proficient at supercoiling and this ability is not representative of all bacteria.
13 A0A0G2Q9F8 (/IDA) A0A0G2Q9F8 (/IDA) A0A0G2Q9F8 (/IDA) A0A0G2Q9F8 (/IDA) A0A0G2Q9F8 (/IDA) A0A0G2Q9F8 (/IDA) C5C7X9 (/IDA) P48354 (/IDA) P48354 (/IDA) P9WG47 (/IDA)
(3 more)
DNA topoisomerase type II (ATP-hydrolyzing) activity GO:0003918
Catalysis of a DNA topological transformation by transiently cleaving a pair of complementary DNA strands to form a gate through which a second double-stranded DNA segment is passed, after which the severed strands in the first DNA segment are rejoined; product release is coupled to ATP binding and hydrolysis; changes the linking number in multiples of 2.
3 C5C7X9 (/IDA) P9WG47 (/IDA) P9WG47 (/IDA)
Magnesium ion binding GO:0000287
Interacting selectively and non-covalently with magnesium (Mg) ions.
2 P9WG47 (/IDA) P9WG47 (/IDA)
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
2 P9WG47 (/IPI) P9WG47 (/IPI)
ATP binding GO:0005524
Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
2 P9WG47 (/IDA) P9WG47 (/IDA)
ATPase activity GO:0016887
Catalysis of the reaction: ATP + H2O = ADP + phosphate + 2 H+. May or may not be coupled to another reaction.
2 P9WG47 (/IDA) P9WG47 (/IDA)

There are 1 GO terms relating to "biological process"

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.
GO Term Annotations Evidence
DNA topological change GO:0006265
The process in which a transformation is induced in the topological structure of a double-stranded DNA helix, resulting in a change in linking number.
2 P9WG47 (/IDA) P9WG47 (/IDA)

There are 2 GO terms relating to "cellular component"

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.
GO Term Annotations Evidence
Cell wall GO:0005618
The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.
2 P9WG47 (/HDA) P9WG47 (/HDA)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
2 P9WG47 (/HDA) P9WG47 (/HDA)