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:

"
Transducin (heterotrimeric G protein), gamma chain
".

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 2: Regulator of G-protein signaling 6

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 11 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).
8 O54829 (/IPI) P49758 (/IPI) P49758 (/IPI) P49758 (/IPI) P49758 (/IPI) P49758 (/IPI) P49803 (/IPI) Q9Z2H2 (/IPI)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
7 O54829 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) Q9Z2H2 (/TAS)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
6 P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49802 (/TAS)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
6 P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49802 (/IDA)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
2 O54829 (/ISO) Q9Z2H2 (/ISO)
G-protein beta-subunit binding GO:0031681
Interacting selectively and non-covalently with a G-protein beta subunit.
2 P49802 (/IPI) P49803 (/IPI)
G-protein alpha-subunit binding GO:0001965
Interacting selectively and non-covalently with a G-protein alpha subunit. The alpha subunit binds a guanine nucleotide.
1 P49803 (/IDA)
G-protein alpha-subunit binding GO:0001965
Interacting selectively and non-covalently with a G-protein alpha subunit. The alpha subunit binds a guanine nucleotide.
1 O54829 (/ISO)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
1 Q9Z2H2 (/ISS)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
1 Q9Z2H2 (/ISO)
G-protein beta-subunit binding GO:0031681
Interacting selectively and non-covalently with a G-protein beta subunit.
1 O54829 (/ISO)

There are 20 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
G protein-coupled receptor signaling pathway GO:0007186
A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
8 O54829 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49802 (/TAS) Q9Z2H2 (/TAS)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
6 P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49802 (/IDA)
Regulation of G protein-coupled receptor signaling pathway GO:0008277
Any process that modulates the frequency, rate or extent of G protein-coupled receptor signaling pathway.
5 P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS)
Regulation of G protein-coupled receptor signaling pathway GO:0008277
Any process that modulates the frequency, rate or extent of G protein-coupled receptor signaling pathway.
2 O54829 (/IDA) P49803 (/IDA)
Regulation of G protein-coupled receptor signaling pathway GO:0008277
Any process that modulates the frequency, rate or extent of G protein-coupled receptor signaling pathway.
2 Q7KPI3 (/ISS) Q9VXA3 (/ISS)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
2 O54829 (/ISO) Q9Z2H2 (/ISO)
Response to amphetamine GO:0001975
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 an amphetamine stimulus. Amphetamines consist of a group of compounds related to alpha-methylphenethylamine.
1 P49803 (/IEP)
Protein folding GO:0006457
The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.
1 P49802 (/TAS)
G protein-coupled receptor signaling pathway GO:0007186
A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
1 O54829 (/IDA)
Brain development GO:0007420
The process whose specific outcome is the progression of the brain over time, from its formation to the mature structure. Brain development begins with patterning events in the neural tube and ends with the mature structure that is the center of thought and emotion. The brain is responsible for the coordination and control of bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.).
1 P49803 (/IEP)
Regulation of G protein-coupled receptor signaling pathway GO:0008277
Any process that modulates the frequency, rate or extent of G protein-coupled receptor signaling pathway.
1 O54829 (/IGI)
Regulation of G protein-coupled receptor signaling pathway GO:0008277
Any process that modulates the frequency, rate or extent of G protein-coupled receptor signaling pathway.
1 O54829 (/ISO)
Response to cold GO:0009409
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 cold stimulus, a temperature stimulus below the optimal temperature for that organism.
1 P49803 (/IEP)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
1 Q9Z2H2 (/ISS)
Response to ethanol GO:0045471
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 an ethanol stimulus.
1 P49803 (/IEP)
Positive regulation of neuron differentiation GO:0045666
Any process that activates or increases the frequency, rate or extent of neuron differentiation.
1 Q9Z2H2 (/ISO)
Regulation of postsynaptic membrane potential GO:0060078
Any process that modulates the potential difference across a post-synaptic membrane.
1 O54829 (/IDA)
Regulation of postsynaptic membrane potential GO:0060078
Any process that modulates the potential difference across a post-synaptic membrane.
1 O54829 (/IMP)
Positive regulation of potassium ion transmembrane transport GO:1901381
Any process that activates or increases the frequency, rate or extent of potassium ion transmembrane transport.
1 P49803 (/IDA)
Positive regulation of potassium ion transmembrane transport GO:1901381
Any process that activates or increases the frequency, rate or extent of potassium ion transmembrane transport.
1 O54829 (/ISO)

There are 24 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
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
7 P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49802 (/IDA) P49803 (/IDA)
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.
6 P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49758 (/TAS) P49802 (/TAS)
Extrinsic component of membrane GO:0019898
The component of a membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region.
5 P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49758 (/IDA) P49758 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 O54829 (/ISO) Q9Z2H2 (/ISO)
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 O54829 (/ISO) Q9Z2H2 (/ISO)
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.
2 O54829 (/IDA) P49803 (/IDA)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
2 O54829 (/ISO) Q9Z2H2 (/ISO)
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 O54829 (/IDA)
Nuclear envelope GO:0005635
The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).
1 P49803 (/IDA)
Nuclear envelope GO:0005635
The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).
1 O54829 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 P49803 (/IDA)
Golgi apparatus GO:0005794
A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
1 Q9Z2H2 (/ISO)
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 Q9Z2H2 (/ISS)
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 O54829 (/ISO)
Extrinsic component of membrane GO:0019898
The component of a membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region.
1 Q9Z2H2 (/ISO)
Extrinsic component of membrane GO:0019898
The component of a membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region.
1 Q9Z2H2 (/ISS)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
1 P49803 (/IDA)
Dendrite terminus GO:0044292
A structure at the distal end of a dendrite adapted to carry out a specific function, e.g. dendriole.
1 O54829 (/IDA)
Membrane raft GO:0045121
Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
1 P49803 (/IDA)
Membrane raft GO:0045121
Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
1 O54829 (/ISO)
Postsynaptic membrane GO:0045211
A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane.
1 O54829 (/IDA)
Presynapse GO:0098793
The part of a synapse that is part of the presynaptic cell.
1 O54829 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 O54829 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 O54829 (/IMP)
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