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:

"
P-loop containing nucleotide triphosphate hydrolases
".

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 234: 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 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
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.
11 A0A0E4AY38 (/IDA) F1NFJ0 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) Q5RIC5 (/IDA) Q5ZMN2 (/IDA)
(1 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).
10 P24279 (/IPI) P24279 (/IPI) P24279 (/IPI) P24279 (/IPI) P24279 (/IPI) P24279 (/IPI) P25205 (/IPI) P25205 (/IPI) P49739 (/IPI) P49739 (/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.
6 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA)
MCM complex binding GO:1904931
Interacting selectively and non-covalently with an MCM complex.
6 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA)
DNA binding GO:0003677
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
2 P25205 (/TAS) P25205 (/TAS)
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.
1 P30666 (/ISO)

There are 18 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.
6 P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/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.
6 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/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.
6 P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP)
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.
6 P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP)
Chromatin silencing at telomere GO:0006348
Repression of transcription of telomeric DNA by altering the structure of chromatin.
6 P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP)
Chromatin silencing at silent mating-type cassette GO:0030466
Repression of transcription at silent mating-type loci by alteration of the structure of chromatin.
6 P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP)
Mitotic DNA replication initiation GO:1902975
Any DNA replication initiation involved in mitotic cell cycle DNA replication.
6 P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP) P24279 (/IMP)
Retina development in camera-type eye GO:0060041
The process whose specific outcome is the progression of the retina over time, from its formation to the mature structure. The retina is the innermost layer or coating at the back of the eyeball, which is sensitive to light and in which the optic nerve terminates.
3 A0A0E4AY38 (/IMP) Q5RIC5 (/IMP) Q6PH47 (/IMP)
G1/S transition of mitotic cell cycle GO:0000082
The mitotic cell cycle transition by which a cell in G1 commits to S phase. The process begins with the build up of G1 cyclin-dependent kinase (G1 CDK), resulting in the activation of transcription of G1 cyclins. The process ends with the positive feedback of the G1 cyclins on the G1 CDK which commits the cell to S phase, in which DNA replication is initiated.
2 P25205 (/TAS) P25205 (/TAS)
DNA replication GO:0006260
The cellular metabolic process in which a cell duplicates one or more molecules of DNA. DNA replication begins when specific sequences, known as origins of replication, are recognized and bound by initiation proteins, and ends when the original DNA molecule has been completely duplicated and the copies topologically separated. The unit of replication usually corresponds to the genome of the cell, an organelle, or a virus. The template for replication can either be an existing DNA molecule or RNA.
2 P25205 (/TAS) P25205 (/TAS)
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.
2 P49739 (/IDA) P49739 (/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.
2 P25205 (/TAS) P25205 (/TAS)
Regulation of DNA-dependent DNA replication initiation GO:0030174
Any process that modulates the frequency, rate or extent of initiation of DNA-dependent DNA replication; the process in which DNA becomes competent to replicate. In eukaryotes, replication competence is established in early G1 and lost during the ensuing S phase.
2 Q7ZXZ0 (/IC) Q7ZXZ0 (/IC)
Regulation of DNA-dependent DNA replication initiation GO:0030174
Any process that modulates the frequency, rate or extent of initiation of DNA-dependent DNA replication; the process in which DNA becomes competent to replicate. In eukaryotes, replication competence is established in early G1 and lost during the ensuing S phase.
2 P49739 (/IDA) P49739 (/IDA)
Neuroblast proliferation GO:0007405
The expansion of a neuroblast population by cell division. A neuroblast is any cell that will divide and give rise to a neuron.
1 X2JAI4 (/IMP)
Mushroom body development GO:0016319
The process whose specific outcome is the progression of the mushroom body over time, from its formation to the mature structure. The mushroom body is composed of the prominent neuropil structures of the insect central brain, thought to be crucial for olfactory associated learning. These consist mainly of a bulbous calyx and tightly packaged arrays of thin parallel fibers of the Kenyon cells.
1 X2JAI4 (/IMP)
Negative regulation of helicase activity GO:0051097
Any process that stops or reduces the activity of a helicase.
1 P30666 (/IDA)
Mitotic DNA replication initiation GO:1902975
Any DNA replication initiation involved in mitotic cell cycle DNA replication.
1 P30666 (/ISO)

There are 31 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
MCM complex GO:0042555
A hexameric protein complex required for the initiation and regulation of DNA replication.
13 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P25205 (/IDA) P25205 (/IDA) P30666 (/IDA) P49739 (/IDA)
(3 more)
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.
12 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P25205 (/IDA) P25205 (/IDA) P25206 (/IDA) P25206 (/IDA)
(2 more)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
8 P24279 (/TAS) P24279 (/TAS) P24279 (/TAS) P24279 (/TAS) P24279 (/TAS) P24279 (/TAS) P25205 (/TAS) P25205 (/TAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
8 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P25206 (/IDA) P25206 (/IDA)
MCM complex GO:0042555
A hexameric protein complex required for the initiation and regulation of DNA replication.
8 A4FUD9 (/ISS) P25206 (/ISS) P25206 (/ISS) Q28BS0 (/ISS) Q5R8G6 (/ISS) Q5R8G6 (/ISS) Q5ZMN2 (/ISS) Q9XVR7 (/ISS)
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.
6 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
6 P24279 (/HDA) P24279 (/HDA) P24279 (/HDA) P24279 (/HDA) P24279 (/HDA) P24279 (/HDA)
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.
6 P24279 (/IPI) P24279 (/IPI) P24279 (/IPI) P24279 (/IPI) P24279 (/IPI) P24279 (/IPI)
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.
6 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/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.
6 P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA) P24279 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
4 A0A0S2Z4T1 (/IDA) A0A0S2Z4T1 (/IDA) P25205 (/IDA) P25205 (/IDA)
Centrosome GO:0005813
A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
4 A0A0S2Z4T1 (/IDA) A0A0S2Z4T1 (/IDA) P25205 (/IDA) P25205 (/IDA)
Nuclear chromosome, telomeric region GO:0000784
The terminal region of a linear nuclear chromosome that includes the telomeric DNA repeats and associated proteins.
2 P25205 (/HDA) P25205 (/HDA)
Chromatin GO:0000785
The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome.
2 P49739 (/IDA) P49739 (/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.
2 F1NFJ0 (/IC) Q5ZMN2 (/IC)
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 P25206 (/ISO) P25206 (/ISO)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
2 P25206 (/ISO) P25206 (/ISO)
Alpha DNA polymerase:primase complex GO:0005658
A complex of four polypeptides, comprising large and small DNA polymerase alpha subunits and two primase subunits, which catalyzes the synthesis of an RNA primer on the lagging strand of replicating DNA; the smaller of the two primase subunits alone can catalyze oligoribonucleotide synthesis.
2 P25205 (/TAS) P25205 (/TAS)
Centrosome GO:0005813
A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
2 P25206 (/ISO) P25206 (/ISO)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
2 P25205 (/HDA) P25205 (/HDA)
MCM complex GO:0042555
A hexameric protein complex required for the initiation and regulation of DNA replication.
2 P25206 (/ISO) P25206 (/ISO)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
2 P25205 (/IDA) P25205 (/IDA)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
2 P25206 (/ISO) P25206 (/ISO)
Nuclear chromatin GO:0000790
The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome in the nucleus.
1 P30666 (/IDA)
Condensed chromosome GO:0000793
A highly compacted molecule of DNA and associated proteins resulting in a cytologically distinct structure.
1 Q9XVR7 (/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 P30666 (/HDA)
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 P30666 (/IC)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
1 P30666 (/HDA)
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 P30666 (/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 P30666 (/IC)
Pronucleus GO:0045120
The nucleus of either the ovum or the spermatozoon following fertilization. Thus, in the fertilized ovum, there are two pronuclei, one originating from the ovum, the other from the spermatozoon that brought about fertilization; they approach each other, but do not fuse until just before the first cleavage, when each pronucleus loses its membrane to release its contents.
1 Q9XVR7 (/IDA)