The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_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 112: active breakpoint cluster region-related protein i...

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 17 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).
7 A0A0G2JTR4 (/IPI) F1LXF1 (/IPI) P11274 (/IPI) Q12979 (/IPI) Q12979 (/IPI) Q12979 (/IPI) Q6PAJ1 (/IPI)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
6 P11274 (/IDA) Q12979 (/IDA) Q12979 (/IDA) Q12979 (/IDA) Q5SSL4 (/IDA) Q6PAJ1 (/IDA)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
6 P11274 (/TAS) Q12979 (/TAS) Q12979 (/TAS) Q12979 (/TAS) Q5SSL4 (/TAS) Q6PAJ1 (/TAS)
Guanyl-nucleotide exchange factor activity GO:0005085
Stimulates the exchange of guanyl nucleotides associated with a GTPase. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
4 P11274 (/IDA) Q12979 (/IDA) Q12979 (/IDA) Q12979 (/IDA)
Guanyl-nucleotide exchange factor activity GO:0005085
Stimulates the exchange of guanyl nucleotides associated with a GTPase. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
3 A6QNS3 (/ISS) Q5SSL4 (/ISS) Q6PAJ1 (/ISS)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
3 A6QNS3 (/ISS) Q5SSL4 (/ISS) Q6PAJ1 (/ISS)
Guanyl-nucleotide exchange factor activity GO:0005085
Stimulates the exchange of guanyl nucleotides associated with a GTPase. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
2 Q5SSL4 (/ISO) Q6PAJ1 (/ISO)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
2 Q5SSL4 (/IGI) Q6PAJ1 (/IGI)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
2 Q5SSL4 (/ISO) Q6PAJ1 (/ISO)
Protein serine/threonine kinase activity GO:0004674
Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate.
1 P11274 (/TAS)
Guanyl-nucleotide exchange factor activity GO:0005085
Stimulates the exchange of guanyl nucleotides associated with a GTPase. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
1 P11274 (/IMP)
Rho guanyl-nucleotide exchange factor activity GO:0005089
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rho family. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
1 P11274 (/IMP)
Rho guanyl-nucleotide exchange factor activity GO:0005089
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rho family. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
1 Q6PAJ1 (/ISO)
Rho guanyl-nucleotide exchange factor activity GO:0005089
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rho family. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
1 Q6PAJ1 (/ISS)
Kinase activity GO:0016301
Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
1 P11274 (/TAS)
Enzyme binding GO:0019899
Interacting selectively and non-covalently with any enzyme.
1 F1LXF1 (/IPI)
Enzyme binding GO:0019899
Interacting selectively and non-covalently with any enzyme.
1 Q6PAJ1 (/ISO)

There are 49 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
Modulation of chemical synaptic transmission GO:0050804
Any process that modulates the frequency or amplitude of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Amplitude, in this case, refers to the change in postsynaptic membrane potential due to a single instance of synaptic transmission.
6 A0A0G2JTR4 (/ISS) F1LXF1 (/ISS) P11274 (/ISS) Q12979 (/ISS) Q12979 (/ISS) Q12979 (/ISS)
Regulation of small GTPase mediated signal transduction GO:0051056
Any process that modulates the frequency, rate or extent of small GTPase mediated signal transduction.
4 P11274 (/TAS) Q12979 (/TAS) Q12979 (/TAS) Q12979 (/TAS)
Activation of GTPase activity GO:0090630
Any process that initiates the activity of an inactive GTPase through the replacement of GDP by GTP.
4 P11274 (/IDA) Q12979 (/IDA) Q12979 (/IDA) Q12979 (/IDA)
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).
3 Q12979 (/TAS) Q12979 (/TAS) Q12979 (/TAS)
Small GTPase mediated signal transduction GO:0007264
Any series of molecular signals in which a small monomeric GTPase relays one or more of the signals.
3 Q12979 (/TAS) Q12979 (/TAS) Q12979 (/TAS)
Positive regulation of apoptotic process GO:0043065
Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process.
3 Q12979 (/TAS) Q12979 (/TAS) Q12979 (/TAS)
Activation of GTPase activity GO:0090630
Any process that initiates the activity of an inactive GTPase through the replacement of GDP by GTP.
3 A6QNS3 (/ISS) Q5SSL4 (/ISS) Q6PAJ1 (/ISS)
Negative regulation of cellular extravasation GO:0002692
Any process that stops, prevents, or reduces the frequency, rate, or extent of cellular extravasation.
2 Q5SSL4 (/IMP) Q6PAJ1 (/IMP)
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.).
2 Q5SSL4 (/IGI) Q6PAJ1 (/IGI)
Actin cytoskeleton organization GO:0030036
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins.
2 Q5SSL4 (/IGI) Q6PAJ1 (/IGI)
Negative regulation of cell migration GO:0030336
Any process that stops, prevents, or reduces the frequency, rate or extent of cell migration.
2 Q5SSL4 (/IGI) Q6PAJ1 (/IGI)
Response to lipopolysaccharide GO:0032496
Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
2 Q5SSL4 (/IMP) Q6PAJ1 (/IMP)
Inner ear morphogenesis GO:0042472
The process in which the anatomical structures of the inner ear are generated and organized. The inner ear is the structure in vertebrates that contains the organs of balance and hearing. It consists of soft hollow sensory structures (the membranous labyrinth) containing fluid (endolymph) surrounded by fluid (perilymph) and encased in a bony cavity (the bony labyrinth). It consists of two chambers, the sacculus and utriculus, from which arise the cochlea and semicircular canals respectively.
2 Q5SSL4 (/IGI) Q6PAJ1 (/IGI)
Regulation of vascular permeability GO:0043114
Any process that modulates the extent to which blood vessels can be pervaded by fluid.
2 Q5SSL4 (/IMP) Q6PAJ1 (/IMP)
Negative regulation of neutrophil degranulation GO:0043314
Any process that stops, prevents, or reduces the rate of neutrophil degranulation.
2 Q5SSL4 (/IGI) Q6PAJ1 (/IGI)
Negative regulation of inflammatory response GO:0050728
Any process that stops, prevents, or reduces the frequency, rate or extent of the inflammatory response.
2 Q5SSL4 (/IMP) Q6PAJ1 (/IMP)
Positive regulation of phagocytosis GO:0050766
Any process that activates or increases the frequency, rate or extent of phagocytosis.
2 Q5SSL4 (/IGI) Q6PAJ1 (/IGI)
Modulation of chemical synaptic transmission GO:0050804
Any process that modulates the frequency or amplitude of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Amplitude, in this case, refers to the change in postsynaptic membrane potential due to a single instance of synaptic transmission.
2 Q5SSL4 (/IMP) Q6PAJ1 (/IMP)
Neuromuscular process controlling balance GO:0050885
Any process that an organism uses to control its balance, the orientation of the organism (or the head of the organism) in relation to the source of gravity. In humans and animals, balance is perceived through visual cues, the labyrinth system of the inner ears and information from skin pressure receptors and muscle and joint receptors.
2 Q5SSL4 (/IGI) Q6PAJ1 (/IGI)
Negative regulation of blood vessel remodeling GO:0060313
Any process that decreases the rate, frequency or extent of blood vessel remodeling, the reorganization or renovation of existing blood vessels.
2 Q5SSL4 (/IMP) Q6PAJ1 (/IMP)
Activation of GTPase activity GO:0090630
Any process that initiates the activity of an inactive GTPase through the replacement of GDP by GTP.
2 Q5SSL4 (/ISO) Q6PAJ1 (/ISO)
Renal system process GO:0003014
A organ system process carried out by any of the organs or tissues of the renal system. The renal system maintains fluid balance, and contributes to electrolyte balance, acid/base balance, and disposal of nitrogenous waste products. In humans, the renal system comprises a pair of kidneys, a pair of ureters, urinary bladder, urethra, sphincter muscle and associated blood vessels; in other species, the renal system may comprise related structures (e.g., nephrocytes and malpighian tubules in Drosophila).
1 Q6PAJ1 (/IMP)
Protein phosphorylation GO:0006468
The process of introducing a phosphate group on to a protein.
1 P11274 (/TAS)
Signal transduction GO:0007165
The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
1 P11274 (/TAS)
Small GTPase mediated signal transduction GO:0007264
Any series of molecular signals in which a small monomeric GTPase relays one or more of the signals.
1 P11274 (/IMP)
Small GTPase mediated signal transduction GO:0007264
Any series of molecular signals in which a small monomeric GTPase relays one or more of the signals.
1 Q6PAJ1 (/ISO)
Small GTPase mediated signal transduction GO:0007264
Any series of molecular signals in which a small monomeric GTPase relays one or more of the signals.
1 Q6PAJ1 (/ISS)
Keratinocyte differentiation GO:0030216
The process in which a relatively unspecialized cell acquires specialized features of a keratinocyte.
1 P11274 (/IMP)
Keratinocyte differentiation GO:0030216
The process in which a relatively unspecialized cell acquires specialized features of a keratinocyte.
1 Q6PAJ1 (/ISO)
Keratinocyte differentiation GO:0030216
The process in which a relatively unspecialized cell acquires specialized features of a keratinocyte.
1 Q6PAJ1 (/ISS)
Regulation of Rho protein signal transduction GO:0035023
Any process that modulates the frequency, rate or extent of Rho protein signal transduction.
1 P11274 (/IMP)
Regulation of Rho protein signal transduction GO:0035023
Any process that modulates the frequency, rate or extent of Rho protein signal transduction.
1 Q6PAJ1 (/ISO)
Regulation of Rho protein signal transduction GO:0035023
Any process that modulates the frequency, rate or extent of Rho protein signal transduction.
1 Q6PAJ1 (/ISS)
Protein autophosphorylation GO:0046777
The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).
1 F1LXF1 (/IDA)
Protein autophosphorylation GO:0046777
The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).
1 Q6PAJ1 (/ISO)
Platelet-derived growth factor receptor signaling pathway GO:0048008
The series of molecular signals generated as a consequence of a platelet-derived growth factor receptor binding to one of its physiological ligands.
1 F1LXF1 (/IDA)
Platelet-derived growth factor receptor signaling pathway GO:0048008
The series of molecular signals generated as a consequence of a platelet-derived growth factor receptor binding to one of its physiological ligands.
1 Q6PAJ1 (/ISO)
Focal adhesion assembly GO:0048041
The aggregation and bonding together of a set of components to form a focal adhesion, a complex of intracellular signaling and structural proteins that provides a structural link between the internal actin cytoskeleton and the ECM, and also function as a locus of signal transduction activity.
1 P11274 (/IMP)
Focal adhesion assembly GO:0048041
The aggregation and bonding together of a set of components to form a focal adhesion, a complex of intracellular signaling and structural proteins that provides a structural link between the internal actin cytoskeleton and the ECM, and also function as a locus of signal transduction activity.
1 Q6PAJ1 (/ISO)
Focal adhesion assembly GO:0048041
The aggregation and bonding together of a set of components to form a focal adhesion, a complex of intracellular signaling and structural proteins that provides a structural link between the internal actin cytoskeleton and the ECM, and also function as a locus of signal transduction activity.
1 Q6PAJ1 (/ISS)
Homeostasis of number of cells GO:0048872
Any biological process involved in the maintenance of the steady-state number of cells within a population of cells.
1 Q6PAJ1 (/IMP)
Regulation of nitrogen compound metabolic process GO:0051171
Any process that modulates the frequency, rate or extent of the chemical reactions and pathways involving nitrogen or nitrogenous compounds.
1 Q6PAJ1 (/IMP)
Regulation of cell cycle GO:0051726
Any process that modulates the rate or extent of progression through the cell cycle.
1 Q6PAJ1 (/IDA)
Definitive hemopoiesis GO:0060216
A second wave of blood cell production that, in vertebrates, generates long-term hemopoietic stem cells that continously provide erythroid, myeloid and lymphoid lineages throughout adulthood.
1 Q6PAJ1 (/IMP)
Negative regulation of respiratory burst GO:0060268
Any process that decreases the rate frequency or extent of a phase of elevated metabolic activity, during which oxygen consumption increases; this leads to the production, by an NADH dependent system, of hydrogen peroxide (H2O2), superoxide anions and hydroxyl radicals.
1 Q6PAJ1 (/IMP)
Intracellular protein transmembrane transport GO:0065002
The directed movement of proteins in a cell, from one side of a membrane to another by means of some agent such as a transporter or pore.
1 Q6PAJ1 (/IMP)
Cellular response to lipopolysaccharide GO:0071222
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 lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
1 Q6PAJ1 (/IMP)
Activation of GTPase activity GO:0090630
Any process that initiates the activity of an inactive GTPase through the replacement of GDP by GTP.
1 P11274 (/IMP)
Negative regulation of reactive oxygen species metabolic process GO:2000378
Any process that stops, prevents or reduces the frequency, rate or extent of reactive oxygen species metabolic process.
1 Q6PAJ1 (/IMP)

There are 20 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
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
9 A0A0G2JTR4 (/ISS) A6QNS3 (/ISS) F1LXF1 (/ISS) P11274 (/ISS) Q12979 (/ISS) Q12979 (/ISS) Q12979 (/ISS) Q5SSL4 (/ISS) Q6PAJ1 (/ISS)
Postsynaptic density, intracellular component GO:0099092
A network of proteins adjacent to the postsynaptic membrane forming an electron dense disc. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize neurotransmitter receptors in the adjacent membrane, such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
7 A6QNS3 (/ISS) P11274 (/ISS) Q12979 (/ISS) Q12979 (/ISS) Q12979 (/ISS) Q5SSL4 (/ISS) Q6PAJ1 (/ISS)
Schaffer collateral - CA1 synapse GO:0098685
A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.
6 A0A0G2JTR4 (/ISS) F1LXF1 (/ISS) P11274 (/ISS) Q12979 (/ISS) Q12979 (/ISS) Q12979 (/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.
4 P11274 (/TAS) Q12979 (/TAS) Q12979 (/TAS) Q12979 (/TAS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
4 P11274 (/HDA) Q12979 (/HDA) Q12979 (/HDA) Q12979 (/HDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
3 A0A0G2JTR4 (/IDA) A0A0G2JZZ7 (/IDA) F1LXF1 (/IDA)
Postsynaptic density, intracellular component GO:0099092
A network of proteins adjacent to the postsynaptic membrane forming an electron dense disc. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize neurotransmitter receptors in the adjacent membrane, such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
3 A0A0G2JTR4 (/IDA) A0A0G2JZZ7 (/IDA) F1LXF1 (/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 Q5SSL4 (/IDA) Q6PAJ1 (/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.
2 Q5SSL4 (/IDA) Q6PAJ1 (/IDA)
Schaffer collateral - CA1 synapse GO:0098685
A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.
2 Q5SSL4 (/IMP) Q6PAJ1 (/IMP)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
2 Q5SSL4 (/IMP) Q6PAJ1 (/IMP)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
2 Q5SSL4 (/ISO) Q6PAJ1 (/ISO)
Postsynaptic density, intracellular component GO:0099092
A network of proteins adjacent to the postsynaptic membrane forming an electron dense disc. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize neurotransmitter receptors in the adjacent membrane, such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
2 Q5SSL4 (/ISO) Q6PAJ1 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 F1LXF1 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q6PAJ1 (/ISO)
Postsynaptic density GO:0014069
An electron dense network of proteins within and adjacent to the postsynaptic membrane of an asymmetric, neuron-neuron synapse. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
1 Q6PAJ1 (/IDA)
Postsynaptic density GO:0014069
An electron dense network of proteins within and adjacent to the postsynaptic membrane of an asymmetric, neuron-neuron synapse. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
1 P11274 (/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 P11274 (/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.
1 Q6PAJ1 (/ISO)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
1 P11274 (/HDA)
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