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 563: Guanine nucleotide-binding protein alpha subunit

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
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 P08539 (/IDA)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 P08539 (/IMP)
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).
1 P08539 (/IPI)
G-protein beta-subunit binding GO:0031681
Interacting selectively and non-covalently with a G-protein beta subunit.
1 P08539 (/IPI)

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
Pheromone-dependent signal transduction involved in conjugation with cellular fusion GO:0000750
A signal transduction process resulting in the relay, amplification or dampening of a signal generated in response to pheromone exposure in organisms that undergo conjugation with cellular fusion. An example of this process is found in Saccharomyces cerevisiae.
2 P08539 (/IGI) Q5AK05 (/IGI)
Pheromone-dependent signal transduction involved in conjugation with cellular fusion GO:0000750
A signal transduction process resulting in the relay, amplification or dampening of a signal generated in response to pheromone exposure in organisms that undergo conjugation with cellular fusion. An example of this process is found in Saccharomyces cerevisiae.
2 P08539 (/IMP) Q5AK05 (/IMP)
Karyogamy involved in conjugation with cellular fusion GO:0000742
During sexual reproduction, the creation of a single nucleus from multiple nuclei as a result of fusing the lipid bilayers that surround each nuclei. This occurs after cytogamy.
1 P08539 (/IMP)
Nuclear migration involved in conjugation with cellular fusion GO:0000743
The microtubule-based movement of nuclei towards one another as a prelude to karyogamy in organisms undergoing conjugation with cellular fusion.
1 P08539 (/IMP)
Response to pheromone triggering conjugation with cellular fusion GO:0000749
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a pheromone stimulus that positively regulates the process of conjugation with cellular fusion. An example of this process is found in Saccharomyces cerevisiae.
1 A0A1D8PJG1 (/IMP)
Cell morphogenesis involved in conjugation with cellular fusion GO:0000753
The change in form (cell shape and size) that occurs during sexual reproduction in order to facilitate direct contact between the compatible mating types in organisms that undergo conjugation cellular fusion.
1 Q5AK05 (/IMP)
Adaptation of signaling pathway by response to pheromone involved in conjugation with cellular fusion GO:0000754
In organisms that undergo conjugation with cellular fusion, the process resulting in desensitization following exposure to pheromone stimulus that act to down-regulate further stimulation or block initial conjugation responses. An example of this is the adaptation to pheromone during conjugation with cellular fusion in Saccharomyces cerevisiae.
1 P08539 (/IMP)
Signal transduction involved in filamentous growth GO:0001402
Relaying of environmental signals promoting filamentous growth.
1 A0A1D8PJG1 (/IMP)
Cellular copper ion homeostasis GO:0006878
Any process involved in the maintenance of an internal steady state of copper ions at the level of a cell.
1 A0A1D8PJG1 (/IMP)
Cellular response to starvation GO:0009267
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 deprivation of nourishment.
1 A0A1D8PJG1 (/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 A0A1D8PJG1 (/IMP)
CAMP-mediated signaling GO:0019933
Any intracellular signal transduction in which the signal is passed on within the cell via cyclic AMP (cAMP). Includes production of cAMP, and downstream effectors that further transmit the signal within the cell.
1 A0A1D8PJG1 (/IMP)
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 A0A1D8PJG1 (/IMP)
Invasive growth in response to heat GO:0036165
The growth of colonies in filamentous chains of cells as a result of an increase in temperature.
1 A0A1D8PJG1 (/IMP)
Filamentous growth of a population of unicellular organisms in response to heat GO:0036168
The process in which a group of unicellular organisms grow in a threadlike, filamentous shape in response to an increase in temperature.
1 A0A1D8PJG1 (/IMP)
Filamentous growth of a population of unicellular organisms in response to starvation GO:0036170
The process in which a group of unicellular organisms grow in a threadlike, filamentous shape in response to deprivation of nourishment.
1 A0A1D8PJG1 (/IMP)
Filamentous growth of a population of unicellular organisms in response to neutral pH GO:0036178
The process in which a group of unicellular organisms grow in a threadlike, filamentous shape in response to a neutral pH (pH close to 7) stimulus.
1 A0A1D8PJG1 (/IMP)
Filamentous growth of a population of unicellular organisms in response to biotic stimulus GO:0036180
The process in which a group of unicellular organisms grow in a threadlike, filamentous shape in response to a biotic (living) stimulus.
1 A0A1D8PJG1 (/IMP)
Cellular response to neutral pH GO:0036244
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 neutral pH (pH close to 7) stimulus. pH is a measure of the acidity or basicity of an aqueous solution.
1 A0A1D8PJG1 (/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 A0A1D8PJG1 (/IMP)
Inositol lipid-mediated signaling GO:0048017
A series of molecular signals in which a cell uses an inositol-containing lipid to convert a signal into a response. Inositol lipids include the phosphoinositides (phosphatidylinositol and its phosphorylated derivatives), ceramides containing inositol, and inositol glycolipids.
1 P08539 (/IMP)
Cellular response to glucose stimulus GO:0071333
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 glucose stimulus.
1 A0A1D8PJG1 (/IMP)
Regulation of MAPK export from nucleus GO:0071701
Any process that modulates the frequency, rate or extent of the directed movement of a MAP kinase from the nucleus to the cytoplasm.
1 P08539 (/IMP)
Positive regulation of filamentous growth of a population of unicellular organisms in response to heat GO:1900433
Any process that activates or increases the frequency, rate or extent of filamentous growth of a population of unicellular organisms in response to heat.
1 A0A1D8PJG1 (/IMP)
Positive regulation of filamentous growth of a population of unicellular organisms in response to starvation GO:1900436
Any process that activates or increases the frequency, rate or extent of filamentous growth of a population of unicellular organisms in response to starvation.
1 A0A1D8PJG1 (/IMP)
Positive regulation of filamentous growth of a population of unicellular organisms in response to neutral pH GO:1900442
Any process that activates or increases the frequency, rate or extent of filamentous growth of a population of unicellular organisms in response to neutral pH.
1 A0A1D8PJG1 (/IMP)
Positive regulation of filamentous growth of a population of unicellular organisms in response to biotic stimulus GO:1900445
Any process that activates or increases the frequency, rate or extent of filamentous growth of a population of unicellular organisms in response to biotic stimulus.
1 A0A1D8PJG1 (/IMP)

There are 7 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
Endosome GO:0005768
A vacuole to which materials ingested by endocytosis are delivered.
1 P08539 (/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.
1 P08539 (/HDA)
Heterotrimeric G-protein complex GO:0005834
Any of a family of heterotrimeric GTP-binding and hydrolyzing proteins; they belong to a superfamily of GTPases that includes monomeric proteins such as EF-Tu and RAS. Heterotrimeric G-proteins consist of three subunits; the alpha subunit contains the guanine nucleotide binding site and possesses GTPase activity; the beta and gamma subunits are tightly associated and function as a beta-gamma heterodimer; extrinsic plasma membrane proteins (cytoplasmic face) that function as a complex to transduce signals from G protein-coupled receptors to an effector protein.
1 P08539 (/IDA)
Heterotrimeric G-protein complex GO:0005834
Any of a family of heterotrimeric GTP-binding and hydrolyzing proteins; they belong to a superfamily of GTPases that includes monomeric proteins such as EF-Tu and RAS. Heterotrimeric G-proteins consist of three subunits; the alpha subunit contains the guanine nucleotide binding site and possesses GTPase activity; the beta and gamma subunits are tightly associated and function as a beta-gamma heterodimer; extrinsic plasma membrane proteins (cytoplasmic face) that function as a complex to transduce signals from G protein-coupled receptors to an effector protein.
1 Q5AK05 (/IGI)
Heterotrimeric G-protein complex GO:0005834
Any of a family of heterotrimeric GTP-binding and hydrolyzing proteins; they belong to a superfamily of GTPases that includes monomeric proteins such as EF-Tu and RAS. Heterotrimeric G-proteins consist of three subunits; the alpha subunit contains the guanine nucleotide binding site and possesses GTPase activity; the beta and gamma subunits are tightly associated and function as a beta-gamma heterodimer; extrinsic plasma membrane proteins (cytoplasmic face) that function as a complex to transduce signals from G protein-coupled receptors to an effector protein.
1 P08539 (/IMP)
Heterotrimeric G-protein complex GO:0005834
Any of a family of heterotrimeric GTP-binding and hydrolyzing proteins; they belong to a superfamily of GTPases that includes monomeric proteins such as EF-Tu and RAS. Heterotrimeric G-proteins consist of three subunits; the alpha subunit contains the guanine nucleotide binding site and possesses GTPase activity; the beta and gamma subunits are tightly associated and function as a beta-gamma heterodimer; extrinsic plasma membrane proteins (cytoplasmic face) that function as a complex to transduce signals from G protein-coupled receptors to an effector protein.
1 P08539 (/IPI)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
1 P08539 (/IDA)