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:

"
Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
".

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 642: Regulator of G-protein signaling loco

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
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 Q9VCX1 (/IPI)
GDP-dissociation inhibitor activity GO:0005092
Prevents the dissociation of GDP from a GTPase, thereby preventing GTP from binding.
1 Q9VCX1 (/IDA)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
1 Q9VCX1 (/IDA)
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 Q9VCX1 (/IPI)

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
Embryonic axis specification GO:0000578
The establishment, maintenance and elaboration of a pattern along a line or a point in an embryo.
1 Q9VCX1 (/IMP)
Heart process GO:0003015
A circulatory system process carried out by the heart. The heart is a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood. The heart is a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.
1 Q9VCX1 (/IMP)
Response to oxidative stress GO:0006979
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 oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
1 Q9VCX1 (/IMP)
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 Q9VCX1 (/IMP)
Cytoplasmic transport, nurse cell to oocyte GO:0007303
The directed movement of cytoplasmic constituents synthesized in the nurse cells to the oocyte.
1 Q9VCX1 (/IMP)
Oocyte dorsal/ventral axis specification GO:0007310
The establishment, maintenance and elaboration of the dorsal/ventral axis of the oocyte. An example of this is found in Drosophila melanogaster.
1 Q9VCX1 (/IMP)
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.
1 Q9VCX1 (/IMP)
Dorsal/ventral axis specification, ovarian follicular epithelium GO:0008069
Polarization of the ovarian follicle cells along the dorsal/ventral axis. An example of this process is found in Drosophila melanogaster.
1 Q9VCX1 (/IMP)
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 Q9VCX1 (/IGI)
Response to heat GO:0009408
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 heat stimulus, a temperature stimulus above the optimal temperature for that organism.
1 Q9VCX1 (/IMP)
Regulation of asymmetric cell division GO:0009786
Any process that modulates the frequency, rate or extent of asymmetric cell division.
1 Q9VCX1 (/IDA)
Glial cell differentiation GO:0010001
The process in which a relatively unspecialized cell acquires the specialized features of a glial cell.
1 Q9VCX1 (/IMP)
Establishment of endothelial blood-brain barrier GO:0014045
Establishment of the endothelial barrier between the blood and the brain. The endothelial cells in the brain capillaries are packed tightly together preventing the passage of most molecules from the blood into the brain. Only lipid soluble molecules or those that are actively transported can pass through the blood-brain barrier.
1 Q9VCX1 (/IMP)
Septate junction assembly GO:0019991
The assembly of a septate junction, an intercellular junction found in invertebrate epithelia that is characterized by a ladder like appearance in electron micrographs and thought to provide structural strength and to provide a barrier to diffusion of solutes through the intercellular space.
1 Q9VCX1 (/IMP)
Cortical actin cytoskeleton organization GO:0030866
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of actin-based cytoskeletal structures in the cell cortex, i.e. just beneath the plasma membrane.
1 Q9VCX1 (/IMP)
Axon ensheathment in central nervous system GO:0032291
The process in which a glial cell membrane closes around an axon in the central nervous system. This can be a myelinating or a non-myelinating neuron-glial interaction.
1 Q9VCX1 (/IMP)
Response to starvation GO:0042594
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 starvation stimulus, deprivation of nourishment.
1 Q9VCX1 (/IMP)
Defense response to fungus GO:0050832
Reactions triggered in response to the presence of a fungus that act to protect the cell or organism.
1 Q9VCX1 (/IMP)
Asymmetric neuroblast division GO:0055059
The process resulting in the physical partitioning and separation of a neuroblast into two daughter cells with different developmental potentials.
1 Q9VCX1 (/IMP)
Establishment of glial blood-brain barrier GO:0060857
Establishment of the glial barrier between the blood and the brain. The glial cells in the brain are packed tightly together preventing the passage of most molecules from the blood into the brain. Only lipid soluble molecules or those that are actively transported can pass through the blood-brain barrier.
1 Q9VCX1 (/IMP)

There are 3 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
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q9VCX1 (/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.
1 Q9VCX1 (/IDA)
Apical cortex GO:0045179
The region that lies just beneath the plasma membrane on the apical edge of a cell.
1 Q9VCX1 (/IDA)
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