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:

"
Nucleic acid-binding proteins
".

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 95: DNA helicase

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 4 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).
4 P29458 (/IPI) P30665 (/IPI) P30665 (/IPI) P30665 (/IPI)
DNA replication origin binding GO:0003688
Interacting selectively and non-covalently with the DNA replication origin, a unique DNA sequence of a replicon at which DNA replication is initiated and proceeds bidirectionally or unidirectionally.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
Single-stranded DNA binding GO:0003697
Interacting selectively and non-covalently with single-stranded DNA.
3 P30665 (/IMP) P30665 (/IMP) P30665 (/IMP)
Chromatin binding GO:0003682
Interacting selectively and non-covalently with chromatin, the network of fibers of DNA, protein, and sometimes RNA, that make up the chromosomes of the eukaryotic nucleus during interphase.
1 P29458 (/IDA)

There are 10 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 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.
3 P30665 (/IMP) P30665 (/IMP) P30665 (/IMP)
Pre-replicative complex assembly involved in nuclear cell cycle DNA replication GO:0006267
The aggregation, arrangement and bonding together of a set of components to form the nuclear pre-replicative complex, a protein-DNA complex that forms at the eukaryotic DNA replication origin and is required for replication initiation.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
DNA unwinding involved in DNA replication GO:0006268
The process in which interchain hydrogen bonds between two strands of DNA are broken or 'melted', generating unpaired template strands for DNA replication.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
DNA replication initiation GO:0006270
The process in which DNA-dependent DNA replication is started; this begins with the ATP dependent loading of an initiator complex onto the DNA, this is followed by DNA melting and helicase activity. In bacteria, the gene products that enable the helicase activity are loaded after the initial melting and in archaea and eukaryotes, the gene products that enable the helicase activity are inactive when they are loaded and subsequently activate.
3 P30665 (/IGI) P30665 (/IGI) P30665 (/IGI)
DNA strand elongation involved in DNA replication GO:0006271
The process in which an existing DNA strand is extended by activities including the addition of nucleotides to the 3' end of the strand, complementary to an existing template, as part of DNA replication.
3 P30665 (/IMP) P30665 (/IMP) P30665 (/IMP)
Nuclear DNA replication GO:0033260
The DNA-dependent DNA replication that occurs in the nucleus of eukaryotic organisms as part of the cell cycle.
3 P30665 (/IMP) P30665 (/IMP) P30665 (/IMP)
Premeiotic DNA replication GO:0006279
The replication of DNA that precedes meiotic cell division.
1 P29458 (/IMP)
Replication fork protection GO:0048478
Any process that prevents the collapse of stalled replication forks.
1 P29458 (/IMP)
Mitotic DNA replication initiation GO:1902975
Any DNA replication initiation involved in mitotic cell cycle DNA replication.
1 P29458 (/IMP)
Negative regulation of DNA helicase activity GO:1905775
Any process that stops, prevents or reduces the frequency, rate or extent of ATP-dependent DNA helicase activity.
1 P29458 (/IMP)

There are 15 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 P29458 (/IDA) P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
MCM complex GO:0042555
A hexameric protein complex required for the initiation and regulation of DNA replication.
4 P29458 (/IDA) P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
MCM core complex GO:0097373
A protein complex that contains Mcm4, Mcm6, and Mcm7 proteins, and possesses DNA helicase activity. In the heterohexameric MCM complex, the Mcm4/6/7 proteins form a stable core, and Mcm2, Mcm3, and Mcm5 are more peripherally associated.
4 P29458 (/IDA) P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
3 P30665 (/TAS) P30665 (/TAS) P30665 (/TAS)
Nuclear pre-replicative complex GO:0005656
A protein-DNA complex assembled at eukaryotic DNA replication origins during late mitosis and G1, allowing the origin to become competent, or 'licensed', for replication. The complex normally includes the origin recognition complex (ORC), Cdc6, Cdt1 and the MiniChromosome Maintenance (Mcm2-7) proteins.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
DNA replication preinitiation complex GO:0031261
A protein-DNA complex assembled at eukaryotic DNA replication origins immediately prior to the initiation of DNA replication. The preinitiation complex is formed by the assembly of additional proteins onto an existing prereplicative complex. In budding yeast, the additional proteins might include Cdc45p, Sld2p, Sld3p, Dpb11p, DNA polymerases, and others; in fission yeast the GINS complex is present.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
Replication fork protection complex GO:0031298
A protein complex conserved in eukaryotes and associated with the replication fork; the complex stabilizes stalled replication forks and is thought to be involved in coordinating leading- and lagging-strand synthesis and in replication checkpoint signaling.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
Nuclear replication fork GO:0043596
The Y-shaped region of a nuclear replicating DNA molecule, resulting from the separation of the DNA strands and in which the synthesis of new strands takes place. Also includes associated protein complexes.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
CMG complex GO:0071162
A protein complex that contains the GINS complex, Cdc45p, and the heterohexameric MCM complex, and that is involved in unwinding DNA during replication.
3 P30665 (/IDA) P30665 (/IDA) P30665 (/IDA)
Nuclear chromatin GO:0000790
The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome in the nucleus.
1 P29458 (/IDA)
Nuclear pre-replicative complex GO:0005656
A protein-DNA complex assembled at eukaryotic DNA replication origins during late mitosis and G1, allowing the origin to become competent, or 'licensed', for replication. The complex normally includes the origin recognition complex (ORC), Cdc6, Cdt1 and the MiniChromosome Maintenance (Mcm2-7) proteins.
1 P29458 (/IC)
RDNA protrusion GO:0030875
Any of the tandem arrays of rDNA localized at the periphery of the nucleus and protruding into the nucleolus, and associated proteins. May be visible as a single or double spot by DAPI staining.
1 P29458 (/IDA)
DNA replication preinitiation complex GO:0031261
A protein-DNA complex assembled at eukaryotic DNA replication origins immediately prior to the initiation of DNA replication. The preinitiation complex is formed by the assembly of additional proteins onto an existing prereplicative complex. In budding yeast, the additional proteins might include Cdc45p, Sld2p, Sld3p, Dpb11p, DNA polymerases, and others; in fission yeast the GINS complex is present.
1 P29458 (/IC)
Nuclear replication fork GO:0043596
The Y-shaped region of a nuclear replicating DNA molecule, resulting from the separation of the DNA strands and in which the synthesis of new strands takes place. Also includes associated protein complexes.
1 P29458 (/IC)
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