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:

"
5'-nuclease
".

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 54: Flap endonuclease GEN

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 12 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
Four-way junction DNA binding GO:0000400
Interacting selectively and non-covalently with DNA containing four-way junctions, also known as Holliday junctions, a structure where two DNA double strands are held together by reciprocal exchange of two of the four strands, one strand each from the two original helices.
1 Q9VRJ0 (/IDA)
Endonuclease activity GO:0004519
Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
1 Q9VRJ0 (/ISS)
Endodeoxyribonuclease activity GO:0004520
Catalysis of the hydrolysis of ester linkages within deoxyribonucleic acid by creating internal breaks.
1 Q9VRJ0 (/IDA)
Endodeoxyribonuclease activity GO:0004520
Catalysis of the hydrolysis of ester linkages within deoxyribonucleic acid by creating internal breaks.
1 Q29FC1 (/ISS)
Single-stranded DNA 3'-5' exodeoxyribonuclease activity GO:0008310
Catalysis of the sequential cleavage of mononucleotides from a free 3' terminus of a single-stranded DNA molecule.
1 Q9VRJ0 (/IDA)
Single-stranded DNA 3'-5' exodeoxyribonuclease activity GO:0008310
Catalysis of the sequential cleavage of mononucleotides from a free 3' terminus of a single-stranded DNA molecule.
1 Q29FC1 (/ISS)
Double-stranded DNA 3'-5' exodeoxyribonuclease activity GO:0008311
Catalysis of the sequential cleavage of mononucleotides from a free 3' terminus of a double-stranded DNA molecule.
1 Q9VRJ0 (/IDA)
Double-stranded DNA 3'-5' exodeoxyribonuclease activity GO:0008311
Catalysis of the sequential cleavage of mononucleotides from a free 3' terminus of a double-stranded DNA molecule.
1 Q29FC1 (/ISS)
Crossover junction endodeoxyribonuclease activity GO:0008821
Catalysis of the endonucleolytic cleavage at a junction such as a reciprocal single-stranded crossover between two homologous DNA duplexes (Holliday junction).
1 Q9VRJ0 (/IDA)
5'-flap endonuclease activity GO:0017108
Catalysis of the cleavage of a 5' flap structure in DNA, but not other DNA structures; processes the 5' ends of Okazaki fragments in lagging strand DNA synthesis.
1 Q9VRJ0 (/IDA)
5'-3' exodeoxyribonuclease activity GO:0035312
Catalysis of the sequential cleavage of mononucleotides from a free 5' terminus of a DNA molecule.
1 Q9VRJ0 (/IDA)
5'-3' exodeoxyribonuclease activity GO:0035312
Catalysis of the sequential cleavage of mononucleotides from a free 5' terminus of a DNA molecule.
1 Q29FC1 (/ISS)

There are 7 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 catabolic process, endonucleolytic GO:0000737
The chemical reactions and pathways resulting in the breakdown of DNA, involving the hydrolysis of internal 3',5'-phosphodiester bonds in one or two strands of deoxyribonucleotides.
1 Q9VRJ0 (/IDA)
DNA catabolic process, endonucleolytic GO:0000737
The chemical reactions and pathways resulting in the breakdown of DNA, involving the hydrolysis of internal 3',5'-phosphodiester bonds in one or two strands of deoxyribonucleotides.
1 Q29FC1 (/ISS)
DNA catabolic process, exonucleolytic GO:0000738
The chemical reactions and pathways resulting in the breakdown of DNA, involving the hydrolysis of terminal 3',5'-phosphodiester bonds in one or two strands of deoxyribonucleotides.
1 Q9VRJ0 (/IDA)
DNA catabolic process, exonucleolytic GO:0000738
The chemical reactions and pathways resulting in the breakdown of DNA, involving the hydrolysis of terminal 3',5'-phosphodiester bonds in one or two strands of deoxyribonucleotides.
1 Q29FC1 (/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.
1 Q9VRJ0 (/IGI)
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 Q9VRJ0 (/IMP)
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.
1 Q9VRJ0 (/IMP)

There are 3 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.
1 Q9VRJ0 (/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.
1 Q29FC1 (/ISS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q9VRJ0 (/IDA)