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 87: FERM, RhoGEF and pleckstrin domain-containing prot...

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 13 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
Rac guanyl-nucleotide exchange factor activity GO:0030676
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rac 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.
6 F1P065 (/ISS) F8VPU2 (/ISS) O94887 (/ISS) Q5RAB8 (/ISS) Q9Y4F1 (/ISS) Q9Y4F1 (/ISS)
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.
2 Q9Y4F1 (/TAS) Q9Y4F1 (/TAS)
Phosphatidylserine binding GO:0001786
Interacting selectively and non-covalently with phosphatidylserine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of L-serine.
1 E9QIC8 (/ISS)
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 O94887 (/IDA)
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 Q91VS8 (/ISO)
Rac guanyl-nucleotide exchange factor activity GO:0030676
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rac 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 Q91VS8 (/IDA)
Rac guanyl-nucleotide exchange factor activity GO:0030676
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rac 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 F1LYQ8 (/IMP)
Rac guanyl-nucleotide exchange factor activity GO:0030676
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rac 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 F8VPU2 (/ISO)
Rac guanyl-nucleotide exchange factor activity GO:0030676
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rac 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 Q91VS8 (/TAS)
Phosphatidylinositol binding GO:0035091
Interacting selectively and non-covalently with any inositol-containing glycerophospholipid, i.e. phosphatidylinositol (PtdIns) and its phosphorylated derivatives.
1 E9QIC8 (/ISS)
Rac GTPase binding GO:0048365
Interacting selectively and non-covalently with Rac protein, any member of the Rac subfamily of the Ras superfamily of monomeric GTPases.
1 F1LYQ8 (/IPI)
Rac GTPase binding GO:0048365
Interacting selectively and non-covalently with Rac protein, any member of the Rac subfamily of the Ras superfamily of monomeric GTPases.
1 F8VPU2 (/ISO)
Phosphatidylinositol phosphate binding GO:1901981
Interacting selectively and non-covalently with phosphatidylinositol phosphate.
1 E9QIC8 (/ISS)

There are 36 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
Synapse assembly GO:0007416
The aggregation, arrangement and bonding together of a set of components to form a synapse. This process ends when the synapse is mature (functional).
5 F1P065 (/ISS) F8VPU2 (/ISS) Q5RAB8 (/ISS) Q9Y4F1 (/ISS) Q9Y4F1 (/ISS)
Dendrite morphogenesis GO:0048813
The process in which the anatomical structures of a dendrite are generated and organized.
5 F1P065 (/ISS) F8VPU2 (/ISS) Q5RAB8 (/ISS) Q9Y4F1 (/ISS) Q9Y4F1 (/ISS)
Negative regulation of phosphatase activity GO:0010923
Any process that decreases the rate or frequency of phosphatase activity. Phosphatases catalyze the hydrolysis of phosphoric monoesters, releasing inorganic phosphate.
2 Q9Y4F1 (/IDA) Q9Y4F1 (/IDA)
Glomerular filtration GO:0003094
The process in which plasma is filtered through the glomerular membrane which consists of capillary endothelial cells, the basement membrane, and epithelial cells. The glomerular filtrate is the same as plasma except it has no significant amount of protein.
1 E9QIC8 (/IMP)
Cell adhesion GO:0007155
The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
1 Q91VS8 (/IMP)
Cell adhesion GO:0007155
The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
1 O94887 (/ISS)
Synapse assembly GO:0007416
The aggregation, arrangement and bonding together of a set of components to form a synapse. This process ends when the synapse is mature (functional).
1 F1LYQ8 (/IMP)
Synapse assembly GO:0007416
The aggregation, arrangement and bonding together of a set of components to form a synapse. This process ends when the synapse is mature (functional).
1 F8VPU2 (/ISO)
Negative regulation of phosphatase activity GO:0010923
Any process that decreases the rate or frequency of phosphatase activity. Phosphatases catalyze the hydrolysis of phosphoric monoesters, releasing inorganic phosphate.
1 F8VPU2 (/ISO)
Negative regulation of phosphatase activity GO:0010923
Any process that decreases the rate or frequency of phosphatase activity. Phosphatases catalyze the hydrolysis of phosphoric monoesters, releasing inorganic phosphate.
1 Q5RAB8 (/ISS)
Neuron remodeling GO:0016322
The developmentally regulated remodeling of neuronal projections such as pruning to eliminate the extra dendrites and axons projections set up in early stages of nervous system development.
1 O94887 (/IDA)
Neuron remodeling GO:0016322
The developmentally regulated remodeling of neuronal projections such as pruning to eliminate the extra dendrites and axons projections set up in early stages of nervous system development.
1 Q91VS8 (/ISO)
Rac protein signal transduction GO:0016601
A series of molecular signals within the cell that are mediated by a member of the Rac family of proteins switching to a GTP-bound active state.
1 O94887 (/IDA)
Rac protein signal transduction GO:0016601
A series of molecular signals within the cell that are mediated by a member of the Rac family of proteins switching to a GTP-bound active state.
1 Q91VS8 (/ISO)
Hair cycle process GO:0022405
A multicellular organismal process involved in the cyclical phases of growth (anagen), regression (catagen), quiescence (telogen), and shedding (exogen) in the life of a hair; one of the collection or mass of filaments growing from the skin of an animal, and forming a covering for a part of the head or for any part or the whole of the body.
1 Q91VS8 (/IMP)
Osteoclast differentiation GO:0030316
The process in which a relatively unspecialized monocyte acquires the specialized features of an osteoclast. An osteoclast is a specialized phagocytic cell associated with the absorption and removal of the mineralized matrix of bone tissue.
1 Q91VS8 (/IMP)
Osteoclast differentiation GO:0030316
The process in which a relatively unspecialized monocyte acquires the specialized features of an osteoclast. An osteoclast is a specialized phagocytic cell associated with the absorption and removal of the mineralized matrix of bone tissue.
1 O94887 (/ISS)
Actin cytoskeleton reorganization GO:0031532
A process that is carried out at the cellular level which results in dynamic structural changes to the arrangement of constituent parts of cytoskeletal structures comprising actin filaments and their associated proteins.
1 Q91VS8 (/IMP)
Actin cytoskeleton reorganization GO:0031532
A process that is carried out at the cellular level which results in dynamic structural changes to the arrangement of constituent parts of cytoskeletal structures comprising actin filaments and their associated proteins.
1 O94887 (/ISS)
Regulation of integrin activation GO:0033623
Any process that modulates the frequency, rate, or extent of integrin activation.
1 Q91VS8 (/IMP)
Regulation of integrin activation GO:0033623
Any process that modulates the frequency, rate, or extent of integrin activation.
1 O94887 (/ISS)
Dendrite morphogenesis GO:0048813
The process in which the anatomical structures of a dendrite are generated and organized.
1 F1LYQ8 (/IMP)
Dendrite morphogenesis GO:0048813
The process in which the anatomical structures of a dendrite are generated and organized.
1 F8VPU2 (/ISO)
Semaphorin-plexin signaling pathway GO:0071526
A series of molecular signals generated as a consequence of a semaphorin receptor (composed of a plexin and a neurophilin) binding to a semaphorin ligand.
1 Q91VS8 (/IMP)
Semaphorin-plexin signaling pathway GO:0071526
A series of molecular signals generated as a consequence of a semaphorin receptor (composed of a plexin and a neurophilin) binding to a semaphorin ligand.
1 O94887 (/ISS)
Podosome assembly GO:0071800
The aggregation, arrangement and bonding together of a set of components to form a podosome, an actin-rich adhesion structure characterized by formation upon cell substrate contact and localization at the substrate-attached part of the cell.
1 Q91VS8 (/IMP)
Podosome assembly GO:0071800
The aggregation, arrangement and bonding together of a set of components to form a podosome, an actin-rich adhesion structure characterized by formation upon cell substrate contact and localization at the substrate-attached part of the cell.
1 O94887 (/ISS)
Retrograde trans-synaptic signaling by trans-synaptic protein complex GO:0098942
Cell-cell signaling from postsynapse to presynapse, across the synaptic cleft, mediated by trans-synaptic protein complex.
1 F1LYQ8 (/IDA)
Retrograde trans-synaptic signaling by trans-synaptic protein complex GO:0098942
Cell-cell signaling from postsynapse to presynapse, across the synaptic cleft, mediated by trans-synaptic protein complex.
1 F1LYQ8 (/IMP)
Retrograde trans-synaptic signaling by trans-synaptic protein complex GO:0098942
Cell-cell signaling from postsynapse to presynapse, across the synaptic cleft, mediated by trans-synaptic protein complex.
1 F8VPU2 (/ISO)
Postsynaptic actin cytoskeleton organization GO:0098974
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 in the postsynaptic actin cytoskeleton.
1 F1LYQ8 (/IDA)
Postsynaptic actin cytoskeleton organization GO:0098974
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 in the postsynaptic actin cytoskeleton.
1 F1LYQ8 (/IMP)
Postsynaptic actin cytoskeleton organization GO:0098974
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 in the postsynaptic actin cytoskeleton.
1 F8VPU2 (/ISO)
Regulation of presynapse assembly GO:1905606
Any process that modulates the frequency, rate or extent of presynapse assembly.
1 F1LYQ8 (/IDA)
Regulation of presynapse assembly GO:1905606
Any process that modulates the frequency, rate or extent of presynapse assembly.
1 F1LYQ8 (/IMP)
Regulation of presynapse assembly GO:1905606
Any process that modulates the frequency, rate or extent of presynapse assembly.
1 F8VPU2 (/ISO)

There are 19 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.
5 F1P065 (/ISS) F8VPU2 (/ISS) Q5RAB8 (/ISS) Q9Y4F1 (/ISS) Q9Y4F1 (/ISS)
Dendrite GO:0030425
A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
5 F1P065 (/ISS) F8VPU2 (/ISS) Q5RAB8 (/ISS) Q9Y4F1 (/ISS) Q9Y4F1 (/ISS)
Extrinsic component of cytoplasmic side of plasma membrane GO:0031234
The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its cytoplasmic surface, but not integrated into the hydrophobic region.
5 F1P065 (/ISS) F8VPU2 (/ISS) Q5RAB8 (/ISS) Q9Y4F1 (/ISS) Q9Y4F1 (/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.
2 O94887 (/TAS) Q91VS8 (/TAS)
Cytoskeleton GO:0005856
Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
2 Q9Y4F1 (/TAS) Q9Y4F1 (/TAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 O94887 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q91VS8 (/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 F1LYQ8 (/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 F8VPU2 (/ISO)
Dendrite GO:0030425
A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
1 F1LYQ8 (/IDA)
Dendrite GO:0030425
A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
1 F8VPU2 (/ISO)
Extrinsic component of cytoplasmic side of plasma membrane GO:0031234
The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its cytoplasmic surface, but not integrated into the hydrophobic region.
1 F1LYQ8 (/IDA)
Extrinsic component of cytoplasmic side of plasma membrane GO:0031234
The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its cytoplasmic surface, but not integrated into the hydrophobic region.
1 F8VPU2 (/ISO)
Extrinsic component of postsynaptic membrane GO:0098890
The component of the postsynaptic 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 F1LYQ8 (/IDA)
Extrinsic component of postsynaptic membrane GO:0098890
The component of the postsynaptic 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 F1LYQ8 (/IMP)
Extrinsic component of postsynaptic membrane GO:0098890
The component of the postsynaptic 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 F8VPU2 (/ISO)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 F1LYQ8 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 F1LYQ8 (/IMP)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 F8VPU2 (/ISO)
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