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 585: Structural maintenance of chromosomes 4

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
Protein heterodimerization activity GO:0046982
Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
7 P50532 (/ISS) Q54LV0 (/ISS) Q8CG47 (/ISS) Q9ERA5 (/ISS) Q9U6I2 (/ISS) Q9U9P6 (/ISS) Q9V3A7 (/ISS)
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).
6 P41004 (/IPI) P48996 (/IPI) Q12267 (/IPI) Q20060 (/IPI) Q8CG47 (/IPI) Q9NTJ3 (/IPI)
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.
3 Q9U6I2 (/ISS) Q9U9P6 (/ISS) Q9V3A7 (/ISS)
ATPase activity GO:0016887
Catalysis of the reaction: ATP + H2O = ADP + phosphate + 2 H+. May or may not be coupled to another reaction.
3 Q9U6I2 (/ISS) Q9U9P6 (/ISS) Q9V3A7 (/ISS)
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 Q12267 (/IDA)
Single-stranded DNA binding GO:0003697
Interacting selectively and non-covalently with single-stranded DNA.
1 Q8CG47 (/IDA)
ATP binding GO:0005524
Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
1 Q9NTJ3 (/TAS)
DNA translocase activity GO:0015616
Catalysis of the reaction: ATP + H2O = ADP + phosphate, to drive movement along a single- or double-stranded DNA molecule.
1 P41004 (/TAS)
Sequence-specific DNA binding GO:0043565
Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
1 P48996 (/IDA)
Protein heterodimerization activity GO:0046982
Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
1 Q9NTJ3 (/IPI)
Protein heterodimerization activity GO:0046982
Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
1 Q8CG47 (/ISO)
Topological DNA entrapment activity GO:0061776
The DNA binding activity by which a protein complex interacts selectively and non-covalently with more than one DNA duplex to encircle the DNA molecules with a loose fitting ring.
1 P41004 (/TAS)

There are 27 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
Mitotic chromosome condensation GO:0007076
The cell cycle process in which chromatin structure is compacted prior to and during mitosis in eukaryotic cells.
7 P50532 (/ISS) Q54LV0 (/ISS) Q8CG47 (/ISS) Q9ERA5 (/ISS) Q9U6I2 (/ISS) Q9U9P6 (/ISS) Q9V3A7 (/ISS)
Mitotic sister chromatid segregation GO:0000070
The cell cycle process in which replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the mitotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner. One homolog of each morphologic type goes into each of the resulting chromosome sets.
6 Q12267 (/IMP) Q20060 (/IMP) Q9FJL0 (/IMP) Q9U6I2 (/IMP) Q9U9P6 (/IMP) Q9V3A7 (/IMP)
Mitotic chromosome condensation GO:0007076
The cell cycle process in which chromatin structure is compacted prior to and during mitosis in eukaryotic cells.
6 P41004 (/IMP) Q12267 (/IMP) Q9FJL0 (/IMP) Q9U6I2 (/IMP) Q9U9P6 (/IMP) Q9V3A7 (/IMP)
Mitotic sister chromatid segregation GO:0000070
The cell cycle process in which replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the mitotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner. One homolog of each morphologic type goes into each of the resulting chromosome sets.
4 Q54LV0 (/ISS) Q9U6I2 (/ISS) Q9U9P6 (/ISS) Q9V3A7 (/ISS)
Mitotic sister chromatid segregation GO:0000070
The cell cycle process in which replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the mitotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner. One homolog of each morphologic type goes into each of the resulting chromosome sets.
3 Q9U6I2 (/NAS) Q9U9P6 (/NAS) Q9V3A7 (/NAS)
Mitotic cell cycle GO:0000278
Progression through the phases of the mitotic cell cycle, the most common eukaryotic cell cycle, which canonically comprises four successive phases called G1, S, G2, and M and includes replication of the genome and the subsequent segregation of chromosomes into daughter cells. In some variant cell cycles nuclear replication or nuclear division may not be followed by cell division, or G1 and G2 phases may be absent.
3 Q9U6I2 (/IMP) Q9U9P6 (/IMP) Q9V3A7 (/IMP)
Sister chromatid segregation GO:0000819
The cell cycle process in which sister chromatids are organized and then physically separated and apportioned to two or more sets.
3 Q9U6I2 (/IMP) Q9U9P6 (/IMP) Q9V3A7 (/IMP)
Mitotic chromosome condensation GO:0007076
The cell cycle process in which chromatin structure is compacted prior to and during mitosis in eukaryotic cells.
3 Q9U6I2 (/NAS) Q9U9P6 (/NAS) Q9V3A7 (/NAS)
Ventral cord development GO:0007419
The process whose specific outcome is the progression of the ventral cord over time, from its formation to the mature structure. The ventral cord is one of the distinguishing traits of the central nervous system of all arthropods (such as insects, crustaceans and arachnids) as well as many other invertebrates, such as the annelid worms.
3 Q9U6I2 (/HMP) Q9U9P6 (/HMP) Q9V3A7 (/HMP)
Chromosome condensation GO:0030261
The progressive compaction of dispersed interphase chromatin into threadlike chromosomes prior to mitotic or meiotic nuclear division, or during apoptosis, in eukaryotic cells.
3 Q9U6I2 (/IMP) Q9U9P6 (/IMP) Q9V3A7 (/IMP)
Chromosome separation GO:0051304
The cell cycle process in which paired chromosomes are detached from each other. Chromosome separation begins with the release of cohesin complexes from chromosomes; in budding yeast, this includes the cleavage of cohesin complexes along the chromosome arms, followed by the separation of the centromeric regions. Chromosome separation also includes formation of chromatid axes mediated by condensins, and ends with the disentangling of inter-sister catenation catalyzed by topoisomerase II (topo II).
3 Q9U6I2 (/IGI) Q9U9P6 (/IGI) Q9V3A7 (/IGI)
Mitotic chromosome condensation GO:0007076
The cell cycle process in which chromatin structure is compacted prior to and during mitosis in eukaryotic cells.
2 P41004 (/IDA) Q9NTJ3 (/IDA)
Single strand break repair GO:0000012
The repair of single strand breaks in DNA. Repair of such breaks is mediated by the same enzyme systems as are used in base excision repair.
1 Q8CG47 (/TAS)
Mitotic sister chromatid segregation GO:0000070
The cell cycle process in which replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the mitotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner. One homolog of each morphologic type goes into each of the resulting chromosome sets.
1 Q9NTJ3 (/TAS)
Mitotic cell cycle GO:0000278
Progression through the phases of the mitotic cell cycle, the most common eukaryotic cell cycle, which canonically comprises four successive phases called G1, S, G2, and M and includes replication of the genome and the subsequent segregation of chromosomes into daughter cells. In some variant cell cycles nuclear replication or nuclear division may not be followed by cell division, or G1 and G2 phases may be absent.
1 Q38CG6 (/ISA)
Chromosome segregation GO:0007059
The process in which genetic material, in the form of chromosomes, is organized into specific structures and then physically separated and apportioned to two or more sets. In eukaryotes, chromosome segregation begins with the condensation of chromosomes, includes chromosome separation, and ends when chromosomes have completed movement to the spindle poles.
1 Q54LV0 (/ISS)
Mitotic chromosome condensation GO:0007076
The cell cycle process in which chromatin structure is compacted prior to and during mitosis in eukaryotic cells.
1 Q8CG47 (/ISO)
Synaptonemal complex assembly GO:0007130
The cell cycle process in which the synaptonemal complex is formed. This is a structure that holds paired chromosomes together during prophase I of meiosis and that promotes genetic recombination.
1 Q12267 (/IC)
Embryo development ending in seed dormancy GO:0009793
The process whose specific outcome is the progression of the embryo over time, from zygote formation to the end of seed dormancy. An example of this process is found in Arabidopsis thaliana.
1 Q9FJL0 (/IMP)
Meiotic chromosome condensation GO:0010032
Compaction of chromatin structure prior to meiosis in eukaryotic cells.
1 Q12267 (/IC)
Meiotic chromosome condensation GO:0010032
Compaction of chromatin structure prior to meiosis in eukaryotic cells.
1 Q8CG47 (/IMP)
Dosage compensation by hypoactivation of X chromosome GO:0042464
Compensating for the two-fold variation in X:autosome chromosome ratios between sexes by an inactivation of a proportion of genes on both of the X chromosomes of the XX sex, leading to a decrease, of half, of the levels of gene expression from these chromosomes. An example of this process is found in Caenorhabditis elegans.
1 P48996 (/IMP)
Meiotic chromosome segregation GO:0045132
The process in which genetic material, in the form of chromosomes, is organized into specific structures and then physically separated and apportioned to two or more sets during M phase of the meiotic cell cycle.
1 Q8CG47 (/IMP)
Meiotic chromosome separation GO:0051307
The process in which chromosomes are physically detached from each other during meiosis.
1 Q12267 (/IC)
Kinetochore organization GO:0051383
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the kinetochore, a multisubunit complex that is located at the centromeric region of DNA and provides an attachment point for the spindle microtubules.
1 Q8CG47 (/IMP)
TRNA gene clustering GO:0070058
The process in which tRNA genes, which are not linearly connected on the chromosome, are transported in three dimensions to, and maintained together in, the nucleolus. This clustered positioning leads to transcriptional silencing of nearby RNA polymerase II promoters (termed tRNA gene mediated (tgm) silencing) in S. cerevisiae.
1 Q12267 (/IMP)
RDNA condensation GO:0070550
The process in which the chromatin structure of the rDNA repeats is compacted. In S. cerevisiae, condensation and resolution of the rDNA occurs during anaphase.
1 Q12267 (/IMP)

There are 33 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.
6 P41004 (/IDA) P48996 (/IDA) Q38CG6 (/IDA) Q9U6I2 (/IDA) Q9U9P6 (/IDA) Q9V3A7 (/IDA)
Condensin complex GO:0000796
A multisubunit protein complex that plays a central role in chromosome condensation.
5 Q8CG47 (/IDA) Q9NTJ3 (/IDA) Q9U6I2 (/IDA) Q9U9P6 (/IDA) Q9V3A7 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
5 P41004 (/IDA) Q38CG6 (/IDA) Q9U6I2 (/IDA) Q9U9P6 (/IDA) Q9V3A7 (/IDA)
Condensin complex GO:0000796
A multisubunit protein complex that plays a central role in chromosome condensation.
4 Q54LV0 (/ISS) Q9U6I2 (/ISS) Q9U9P6 (/ISS) Q9V3A7 (/ISS)
Chromatin GO:0000785
The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome.
3 Q9U6I2 (/IDA) Q9U9P6 (/IDA) Q9V3A7 (/IDA)
Condensin complex GO:0000796
A multisubunit protein complex that plays a central role in chromosome condensation.
3 Q9U6I2 (/NAS) Q9U9P6 (/NAS) Q9V3A7 (/NAS)
Chromosome GO:0005694
A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
3 Q9U6I2 (/IDA) Q9U9P6 (/IDA) Q9V3A7 (/IDA)
Condensin complex GO:0000796
A multisubunit protein complex that plays a central role in chromosome condensation.
2 Q8CG47 (/TAS) Q9NTJ3 (/TAS)
Nuclear condensin complex GO:0000799
A multisubunit protein complex that plays a central role in the condensation of chromosomes that remain in the nucleus.
2 P41004 (/IDA) Q12267 (/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 P41004 (/HDA) Q12267 (/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 Q8CG47 (/TAS) Q9NTJ3 (/TAS)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
2 E9PD53 (/IDA) Q9NTJ3 (/IDA)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
2 P50532 (/TAS) Q9NTJ3 (/TAS)
Nuclear speck GO:0016607
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
2 E9PD53 (/IDA) Q9NTJ3 (/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 P48996 (/IDA)
Chromosome, centromeric region GO:0000775
The region of a chromosome that includes the centromeric DNA and associated proteins. In monocentric chromosomes, this region corresponds to a single area of the chromosome, whereas in holocentric chromosomes, it is evenly distributed along the chromosome.
1 Q20060 (/IDA)
Nuclear chromatin GO:0000790
The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome in the nucleus.
1 P41004 (/IDA)
Condensed chromosome GO:0000793
A highly compacted molecule of DNA and associated proteins resulting in a cytologically distinct structure.
1 Q20060 (/IDA)
Condensin complex GO:0000796
A multisubunit protein complex that plays a central role in chromosome condensation.
1 Q38CG6 (/ISA)
Condensin complex GO:0000796
A multisubunit protein complex that plays a central role in chromosome condensation.
1 Q8CG47 (/ISO)
X chromosome GO:0000805
The sex chromosome present in both sexes of species in which the male is the heterogametic sex. Two copies of the X chromosome are present in each somatic cell of females and one copy is present in males.
1 P48996 (/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 Q54LV0 (/ISS)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q9NTJ3 (/TAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q4QC62 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q54LV0 (/ISS)
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 P41004 (/HDA)
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 Q8CG47 (/ISO)
Nuclear speck GO:0016607
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
1 Q8CG47 (/ISO)
Nuclear lumen GO:0031981
The volume enclosed by the nuclear inner membrane.
1 Q38CG6 (/IDA)
Nuclear lumen GO:0031981
The volume enclosed by the nuclear inner membrane.
1 Q4QC62 (/ISO)
Dosage compensation complex GO:0046536
A protein or protein-RNA complex that localizes to one or more of the sex chromosome(s), where it acts to normalize transcription between different sexes.
1 P48996 (/IPI)
Ciliary plasm GO:0097014
All of the contents of a cilium, excluding the plasma membrane surrounding the cilium.
1 Q38CG6 (/IDA)
Ciliary plasm GO:0097014
All of the contents of a cilium, excluding the plasma membrane surrounding the cilium.
1 Q4QC62 (/ISO)