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 repair protein Rad52/59/22
".

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 repair protein RAD52 homolog

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 17 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
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).
5 O42905 (/IPI) P06778 (/IPI) P36592 (/IPI) P43351 (/IPI) P43351 (/IPI)
DNA binding GO:0003677
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
2 P43351 (/IDA) P43351 (/IDA)
DNA binding GO:0003677
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
2 P43351 (/TAS) P43351 (/TAS)
Single-stranded DNA binding GO:0003697
Interacting selectively and non-covalently with single-stranded DNA.
2 O42905 (/IDA) P36592 (/IDA)
Single-stranded DNA binding GO:0003697
Interacting selectively and non-covalently with single-stranded DNA.
2 P43351 (/IMP) P43351 (/IMP)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
2 P43351 (/IMP) P43351 (/IMP)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
2 P43351 (/IPI) P43351 (/IPI)
Recombinase activity GO:0000150
Catalysis of the identification and base-pairing of homologous sequences between single-stranded DNA and double-stranded DNA.
1 P06778 (/IDA)
Recombinase activity GO:0000150
Catalysis of the identification and base-pairing of homologous sequences between single-stranded DNA and double-stranded DNA.
1 O42905 (/ISO)
DNA binding GO:0003677
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
1 P43352 (/ISO)
Damaged DNA binding GO:0003684
Interacting selectively and non-covalently with damaged DNA.
1 P36592 (/TAS)
Double-stranded DNA binding GO:0003690
Interacting selectively and non-covalently with double-stranded DNA.
1 P36592 (/IDA)
Single-stranded DNA binding GO:0003697
Interacting selectively and non-covalently with single-stranded DNA.
1 P36592 (/EXP)
Single-stranded DNA binding GO:0003697
Interacting selectively and non-covalently with single-stranded DNA.
1 P43352 (/ISO)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
1 P43352 (/ISO)
DNA end binding GO:0045027
Interacting selectively and non-covalently with the ends of DNA that are exposed by the creation of double-strand breaks (DSBs).
1 P36592 (/IDA)
DNA/DNA annealing activity GO:1990814
A nucleic acid binding activity that brings together complementary sequences of ssDNA so that they pair by hydrogen bonds to form a double-stranded DNA.
1 P06778 (/IDA)

There are 52 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
Double-strand break repair via single-strand annealing GO:0045002
Repair of a DSB made between two repeated sequences oriented in the same direction occurs primarily by the single strand annealing pathway. The ends of the break are processed by a 5' to 3' exonuclease, exposing complementary single-strand regions of the direct repeats that can anneal, resulting in a deletion of the unique DNA between the direct repeats.
5 F1QXE3 (/IMP) F1RC79 (/IMP) Q4G099 (/IMP) Q4U0V2 (/IMP) Q4U0V3 (/IMP)
Double-strand break repair via homologous recombination GO:0000724
The error-free repair of a double-strand break in DNA in which the broken DNA molecule is repaired using homologous sequences. A strand in the broken DNA searches for a homologous region in an intact chromosome to serve as the template for DNA synthesis. The restoration of two intact DNA molecules results in the exchange, reciprocal or nonreciprocal, of genetic material between the intact DNA molecule and the broken DNA molecule.
3 P06778 (/IMP) P36592 (/IMP) Q59NG2 (/IMP)
Cellular response to oxidative stress GO:0034599
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 oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
3 P43351 (/IDA) P43351 (/IDA) P43352 (/IDA)
Double-strand break repair GO:0006302
The repair of double-strand breaks in DNA via homologous and nonhomologous mechanisms to reform a continuous DNA helix.
2 P43351 (/TAS) P43351 (/TAS)
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.
2 P43351 (/IMP) P43351 (/IMP)
Mitotic recombination GO:0006312
The exchange, reciprocal or nonreciprocal, of genetic material between one DNA molecule and a homologous region of DNA that occurs during mitotic cell cycles.
2 P36592 (/IMP) Q59NG2 (/IMP)
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.
2 P43351 (/IGI) P43351 (/IGI)
DNA double-strand break processing involved in repair via single-strand annealing GO:0010792
The 5' to 3' exonucleolytic resection of the DNA at the site of the break to form a 3' single-strand DNA overhang that results in the repair of a double strand break via single-strand annealing.
2 P43351 (/IDA) P43351 (/IDA)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
2 P43351 (/IMP) P43351 (/IMP)
Regulation of nucleotide-excision repair GO:2000819
Any process that modulates the frequency, rate or extent of nucleotide-excision repair.
2 P43351 (/IDA) P43351 (/IDA)
Meiotic joint molecule formation GO:0000709
The conversion of the paired broken DNA and homologous duplex DNA into a four-stranded branched intermediate, known as a joint molecule, formed during meiotic recombination. These joint molecules contain Holliday junctions on either side of heteroduplex DNA.
1 P06778 (/IGI)
Meiotic joint molecule formation GO:0000709
The conversion of the paired broken DNA and homologous duplex DNA into a four-stranded branched intermediate, known as a joint molecule, formed during meiotic recombination. These joint molecules contain Holliday junctions on either side of heteroduplex DNA.
1 P06778 (/IMP)
Telomere maintenance via recombination GO:0000722
Any recombinational process that contributes to the maintenance of proper telomeric length.
1 P36592 (/IGI)
Telomere maintenance via recombination GO:0000722
Any recombinational process that contributes to the maintenance of proper telomeric length.
1 P06778 (/IMP)
Telomere maintenance GO:0000723
Any process that contributes to the maintenance of proper telomeric length and structure by affecting and monitoring the activity of telomeric proteins, the length of telomeric DNA and the replication and repair of the DNA. These processes includes those that shorten, lengthen, replicate and repair the telomeric DNA sequences.
1 P36592 (/IGI)
Telomere maintenance GO:0000723
Any process that contributes to the maintenance of proper telomeric length and structure by affecting and monitoring the activity of telomeric proteins, the length of telomeric DNA and the replication and repair of the DNA. These processes includes those that shorten, lengthen, replicate and repair the telomeric DNA sequences.
1 Q59NG2 (/IMP)
Double-strand break repair via homologous recombination GO:0000724
The error-free repair of a double-strand break in DNA in which the broken DNA molecule is repaired using homologous sequences. A strand in the broken DNA searches for a homologous region in an intact chromosome to serve as the template for DNA synthesis. The restoration of two intact DNA molecules results in the exchange, reciprocal or nonreciprocal, of genetic material between the intact DNA molecule and the broken DNA molecule.
1 P43352 (/IDA)
Double-strand break repair via homologous recombination GO:0000724
The error-free repair of a double-strand break in DNA in which the broken DNA molecule is repaired using homologous sequences. A strand in the broken DNA searches for a homologous region in an intact chromosome to serve as the template for DNA synthesis. The restoration of two intact DNA molecules results in the exchange, reciprocal or nonreciprocal, of genetic material between the intact DNA molecule and the broken DNA molecule.
1 P36592 (/IGI)
Double-strand break repair via break-induced replication GO:0000727
The error-free repair of a double-strand break in DNA in which the centromere-proximal end of a broken chromosome searches for a homologous region in an intact chromosome. DNA synthesis initiates from the 3' end of the invading DNA strand, using the intact chromosome as the template, and progresses to the end of the chromosome.
1 P06778 (/IMP)
DNA recombinase assembly GO:0000730
The aggregation, arrangement and bonding together of strand exchange proteins (recombinases) into higher order oligomers on single-stranded DNA.
1 P06778 (/IDA)
DNA recombinase assembly GO:0000730
The aggregation, arrangement and bonding together of strand exchange proteins (recombinases) into higher order oligomers on single-stranded DNA.
1 O42905 (/ISO)
DNA recombinase assembly GO:0000730
The aggregation, arrangement and bonding together of strand exchange proteins (recombinases) into higher order oligomers on single-stranded DNA.
1 P36592 (/NAS)
DNA strand renaturation GO:0000733
The identification and annealing of complementary base pairs in single-strand DNA.
1 P06778 (/IDA)
DNA amplification GO:0006277
The process in which the number of copies of a gene is increased in certain cells as extra copies of DNA are made in response to certain signals of cell development or of stress from the environment.
1 P06778 (/IMP)
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.
1 Q59NG2 (/IMP)
Postreplication repair GO:0006301
The conversion of DNA-damage induced single-stranded gaps into large molecular weight DNA after replication. Includes pathways that remove replication-blocking lesions in conjunction with DNA replication.
1 P06778 (/IMP)
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.
1 P43352 (/ISO)
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.
1 P43352 (/ISS)
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.
1 P43352 (/ISO)
Reciprocal meiotic recombination GO:0007131
The cell cycle process in which double strand breaks are formed and repaired through a double Holliday junction intermediate. This results in the equal exchange of genetic material between non-sister chromatids in a pair of homologous chromosomes. These reciprocal recombinant products ensure the proper segregation of homologous chromosomes during meiosis I and create genetic diversity.
1 O42905 (/IMP)
Mating type switching GO:0007533
The conversion of a single-cell organism from one mating type to another by the precise replacement of a DNA sequence at the expressed mating type locus with a copy of a sequence from a donor locus.
1 P36592 (/IMP)
Pathogenesis GO:0009405
The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
1 Q59NG2 (/IMP)
DNA double-strand break processing involved in repair via single-strand annealing GO:0010792
The 5' to 3' exonucleolytic resection of the DNA at the site of the break to form a 3' single-strand DNA overhang that results in the repair of a double strand break via single-strand annealing.
1 P43352 (/IMP)
DNA double-strand break processing involved in repair via single-strand annealing GO:0010792
The 5' to 3' exonucleolytic resection of the DNA at the site of the break to form a 3' single-strand DNA overhang that results in the repair of a double strand break via single-strand annealing.
1 P43352 (/ISO)
Negative regulation of meiotic joint molecule formation GO:0010947
Any process that decreases the frequency, rate or extent of meiotic joint molecule formation. Meiotic joint molecule formation is the conversion of the paired broken DNA and homologous duplex DNA into a four-stranded branched intermediate, known as a joint molecule, formed during meiotic recombination.
1 P36592 (/IDA)
Filamentous growth GO:0030447
The process in which a multicellular organism, a unicellular organism or a group of unicellular organisms grow in a threadlike, filamentous shape.
1 Q59NG2 (/IMP)
Cellular response to oxidative stress GO:0034599
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 oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
1 Q59NG2 (/IMP)
Cellular response to oxidative stress GO:0034599
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 oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
1 P43352 (/ISO)
Strand invasion involved in gene conversion at mating-type locus GO:0034636
The process in which the nucleoprotein complex (composed of the broken single-strand DNA and the recombinase) searches and identifies a region of homology in intact duplex DNA at the mating-type locus. The broken single-strand DNA displaces the like strand and forms Watson-Crick base pairs with its complement, forming a duplex in which each strand is from one of the two recombining DNA molecules. This process occurs as part of gene conversion at the mating-type locus.
1 P36592 (/IMP)
Cellular response to UV GO:0034644
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 an ultraviolet radiation (UV light) stimulus. Ultraviolet radiation is electromagnetic radiation with a wavelength in the range of 10 to 380 nanometers.
1 Q59NG2 (/IMP)
Cellular response to drug GO:0035690
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 drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
1 Q59NG2 (/IMP)
Phenotypic switching GO:0036166
A reversible switch of a cell from one cell type or form to another, at a frequency above the expected frequency for somatic mutations. Phenotypic switching involves changes in cell morphology and altered gene expression patterns. For example, Candida albicans switches from white cells to opaque cells for sexual mating. Phenotypic switching also occurs in multicellular organisms; smooth muscle cells (SMCs) exhibit phenotypic transitions to allow rapid adaption to fluctuating environmental cues.
1 Q59NG2 (/IMP)
Negative regulation of DNA binding GO:0043392
Any process that stops or reduces the frequency, rate or extent of DNA binding. DNA binding is any process in which a gene product interacts selectively with DNA (deoxyribonucleic acid).
1 P36592 (/IDA)
Mitochondrial DNA repair GO:0043504
The process of restoring mitochondrial DNA after damage.
1 P06778 (/IMP)
Filamentous growth of a population of unicellular organisms GO:0044182
The process in which a group of unicellular organisms grow in a threadlike, filamentous shape.
1 Q59NG2 (/IMP)
Double-strand break repair via single-strand annealing GO:0045002
Repair of a DSB made between two repeated sequences oriented in the same direction occurs primarily by the single strand annealing pathway. The ends of the break are processed by a 5' to 3' exonuclease, exposing complementary single-strand regions of the direct repeats that can anneal, resulting in a deletion of the unique DNA between the direct repeats.
1 P06778 (/IGI)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
1 P43352 (/ISO)
Cellular response to ionizing radiation GO:0071479
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 ionizing radiation stimulus. Ionizing radiation is radiation with sufficient energy to remove electrons from atoms and may arise from spontaneous decay of unstable isotopes, resulting in alpha and beta particles and gamma rays. Ionizing radiation also includes X-rays.
1 Q59NG2 (/IMP)
Negative regulation of DNA strand resection involved in replication fork processing GO:0110027
Any process that stops, prevents, or reduces the frequency, rate or extent of DNA strand resection involved in replication fork processing.
1 P36592 (/EXP)
Negative regulation of filamentous growth of a population of unicellular organisms GO:1900429
Any process that stops, prevents or reduces the frequency, rate or extent of filamentous growth of a population of unicellular organisms.
1 Q59NG2 (/IMP)
Mitotic recombination-dependent replication fork processing GO:1990426
Replication fork processing that includes recombination between DNA near the arrested fork and homologous sequences. Proteins involved in homologous recombination are required for replication restart.
1 P36592 (/IMP)
Regulation of nucleotide-excision repair GO:2000819
Any process that modulates the frequency, rate or extent of nucleotide-excision repair.
1 P43352 (/ISO)

There are 12 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
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
4 P06778 (/IDA) P36592 (/IDA) P43351 (/IDA) P43351 (/IDA)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
3 O42905 (/HDA) P06778 (/HDA) P36592 (/HDA)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
2 P43351 (/TAS) P43351 (/TAS)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
2 P43351 (/TAS) P43351 (/TAS)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
2 P43351 (/IDA) P43351 (/IDA)
Protein-DNA complex GO:0032993
A macromolecular complex containing both protein and DNA molecules.
2 P43351 (/IMP) P43351 (/IMP)
Nuclear chromosome GO:0000228
A chromosome that encodes the nuclear genome and is found in the nucleus of a eukaryotic cell during the cell cycle phases when the nucleus is intact.
1 P06778 (/IDA)
Nuclear chromosome GO:0000228
A chromosome that encodes the nuclear genome and is found in the nucleus of a eukaryotic cell during the cell cycle phases when the nucleus is intact.
1 O42905 (/ISO)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 P43352 (/ISO)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
1 P43352 (/ISO)
Protein-DNA complex GO:0032993
A macromolecular complex containing both protein and DNA molecules.
1 P43352 (/ISO)
Site of double-strand break GO:0035861
A region of a chromosome at which a DNA double-strand break has occurred. DNA damage signaling and repair proteins accumulate at the lesion to respond to the damage and repair the DNA to form a continuous DNA helix.
1 P36592 (/IDA)