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:

"
HRDC 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 2: ATP-dependent DNA helicase RecQ

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 10 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 helicase activity GO:0003678
Catalysis of the reaction: ATP + H2O = ADP + phosphate; this reaction drives the unwinding of the DNA helix.
46 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(36 more)
DNA-dependent ATPase activity GO:0008094
Catalysis of the reaction: ATP + H2O = ADP + phosphate; this reaction requires the presence of single- or double-stranded DNA, and it drives another reaction.
46 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(36 more)
DNA binding GO:0003677
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
38 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(28 more)
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).
38 P15043 (/IPI) P15043 (/IPI) P15043 (/IPI) P15043 (/IPI) P15043 (/IPI) P15043 (/IPI) P15043 (/IPI) P15043 (/IPI) P15043 (/IPI) P15043 (/IPI)
(28 more)
Zinc ion binding GO:0008270
Interacting selectively and non-covalently with zinc (Zn) ions.
38 P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP)
(28 more)
ATPase activity GO:0016887
Catalysis of the reaction: ATP + H2O = ADP + phosphate + 2 H+. May or may not be coupled to another reaction.
38 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(28 more)
Single-stranded DNA helicase activity GO:0017116
Catalysis of the reaction: ATP + H2O = ADP + phosphate, in the presence of single-stranded DNA; drives the unwinding of a DNA helix.
38 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(28 more)
Transition metal ion binding GO:0046914
Interacting selectively and non-covalently with a transition metal ions; a transition metal is an element whose atom has an incomplete d-subshell of extranuclear electrons, or which gives rise to a cation or cations with an incomplete d-subshell. Transition metals often have more than one valency state. Biologically relevant transition metals include vanadium, manganese, iron, copper, cobalt, nickel, molybdenum and silver.
38 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(28 more)
Magnesium ion binding GO:0000287
Interacting selectively and non-covalently with magnesium (Mg) ions.
8 P9WMP9 (/IDA) P9WMP9 (/IDA) P9WMP9 (/IDA) P9WMP9 (/IDA) P9WMP9 (/IDA) P9WMP9 (/IDA) P9WMP9 (/IDA) P9WMP9 (/IDA)
DNA helicase activity GO:0003678
Catalysis of the reaction: ATP + H2O = ADP + phosphate; this reaction drives the unwinding of the DNA helix.
7 Q8E9M8 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS)

There are 6 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 repair GO:0006281
The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.
38 P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI)
(28 more)
DNA recombination GO:0006310
Any process in which a new genotype is formed by reassortment of genes resulting in gene combinations different from those that were present in the parents. In eukaryotes genetic recombination can occur by chromosome assortment, intrachromosomal recombination, or nonreciprocal interchromosomal recombination. Interchromosomal recombination occurs by crossing over. In bacteria it may occur by genetic transformation, conjugation, transduction, or F-duction.
38 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(28 more)
DNA recombination GO:0006310
Any process in which a new genotype is formed by reassortment of genes resulting in gene combinations different from those that were present in the parents. In eukaryotes genetic recombination can occur by chromosome assortment, intrachromosomal recombination, or nonreciprocal interchromosomal recombination. Interchromosomal recombination occurs by crossing over. In bacteria it may occur by genetic transformation, conjugation, transduction, or F-duction.
38 P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP) P15043 (/IMP)
(28 more)
Cellular response to DNA damage stimulus GO:0006974
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
38 P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI) P15043 (/IGI)
(28 more)
DNA recombination GO:0006310
Any process in which a new genotype is formed by reassortment of genes resulting in gene combinations different from those that were present in the parents. In eukaryotes genetic recombination can occur by chromosome assortment, intrachromosomal recombination, or nonreciprocal interchromosomal recombination. Interchromosomal recombination occurs by crossing over. In bacteria it may occur by genetic transformation, conjugation, transduction, or F-duction.
7 Q8E9M8 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS)
DNA repair GO:0006281
The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.
6 Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS) Q9KVF0 (/ISS)

There are 4 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
Bacterial nucleoid GO:0043590
The region of a bacterial cell to which the DNA is confined.
41 O34748 (/IDA) O34748 (/IDA) O34748 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(31 more)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
38 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(28 more)
Single-stranded DNA-dependent ATP-dependent DNA helicase complex GO:0017117
A protein complex that possesses single-stranded DNA-dependent DNA helicase activity.
38 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(28 more)
Replisome GO:0030894
A multi-component enzymatic machine at the replication fork which mediates DNA replication. Includes DNA primase, one or more DNA polymerases, DNA helicases, and other proteins.
38 P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA) P15043 (/IDA)
(28 more)