The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_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 10927: Guanine nucleotide exchange factor VAV3

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).
2 Q9R0C8 (/IPI) Q9UKW4 (/IPI)
SH3/SH2 adaptor activity GO:0005070
Interacting selectively and non-covalently and simultaneously with one or more signal transduction molecules, usually acting as a scaffold to bring these molecules into close proximity either using their own SH2/SH3 domains (e.g. Grb2) or those of their target molecules (e.g. SAM68).
1 Q9UKW4 (/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 Q9UKW4 (/EXP)
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 Q9R0C8 (/IMP)
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 Q9R0C8 (/ISO)
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 Q9UKW4 (/TAS)
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 Q9R0C8 (/IGI)
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 Q9UKW4 (/TAS)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
1 Q9UKW4 (/TAS)
Epidermal growth factor receptor binding GO:0005154
Interacting selectively and non-covalently with the epidermal growth factor receptor.
1 Q9R0C8 (/IPI)
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 Q9R0C8 (/IGI)

There are 28 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
Regulation of GTPase activity GO:0043087
Any process that modulates the rate of GTP hydrolysis by a GTPase.
2 Q9R0C8 (/IGI) Q9UKW4 (/IGI)
Vesicle fusion GO:0006906
Fusion of the membrane of a transport vesicle with its target membrane.
1 Q9R0C8 (/IGI)
Cellular response to DNA damage stimulus GO:0006974
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 stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
1 Q9UKW4 (/IMP)
Cellular response to DNA damage stimulus GO:0006974
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 stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
1 Q9R0C8 (/ISO)
Integrin-mediated signaling pathway GO:0007229
A series of molecular signals initiated by the binding of extracellular ligand to an integrin on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 Q9R0C8 (/IGI)
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 Q9R0C8 (/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 Q9UKW4 (/TAS)
Regulation of cell size GO:0008361
Any process that modulates the size of a cell.
1 Q9UKW4 (/IGI)
Cell migration GO:0016477
The controlled self-propelled movement of a cell from one site to a destination guided by molecular cues. Cell migration is a central process in the development and maintenance of multicellular organisms.
1 Q9R0C8 (/IGI)
Cell projection assembly GO:0030031
Formation of a prolongation or process extending from a cell, e.g. a flagellum or axon.
1 Q9R0C8 (/IGI)
Lamellipodium assembly GO:0030032
Formation of a lamellipodium, a thin sheetlike extension of the surface of a migrating cell.
1 Q9R0C8 (/IGI)
Platelet activation GO:0030168
A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
1 Q9UKW4 (/TAS)
Neutrophil chemotaxis GO:0030593
The directed movement of a neutrophil cell, the most numerous polymorphonuclear leukocyte found in the blood, in response to an external stimulus, usually an infection or wounding.
1 Q9R0C8 (/IGI)
Positive regulation of B cell proliferation GO:0030890
Any process that activates or increases the rate or extent of B cell proliferation.
1 Q9UKW4 (/IMP)
Positive regulation of B cell proliferation GO:0030890
Any process that activates or increases the rate or extent of B cell proliferation.
1 Q9R0C8 (/ISO)
Fc-epsilon receptor signaling pathway GO:0038095
A series of molecular signals initiated by the binding of the Fc portion of immunoglobulin E (IgE) to an Fc-epsilon receptor on the surface of a signal-receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription. The Fc portion of an immunoglobulin is its C-terminal constant region.
1 Q9UKW4 (/TAS)
Fc-gamma receptor signaling pathway involved in phagocytosis GO:0038096
An Fc-gamma receptor signaling pathway that contributes to the endocytic engulfment of external particulate material by phagocytes.
1 Q9UKW4 (/TAS)
Response to drug GO:0042493
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 drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
1 Q9UKW4 (/IMP)
Response to drug GO:0042493
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 drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
1 Q9R0C8 (/ISO)
Positive regulation of apoptotic process GO:0043065
Any process that activates or increases the frequency, rate or extent of cell death by apoptotic process.
1 Q9UKW4 (/TAS)
Regulation of GTPase activity GO:0043087
Any process that modulates the rate of GTP hydrolysis by a GTPase.
1 Q9R0C8 (/ISO)
Positive regulation of phosphatidylinositol 3-kinase activity GO:0043552
Any process that activates or increases the frequency, rate or extent of phosphatidylinositol 3-kinase activity.
1 Q9R0C8 (/IGI)
Positive regulation of cell adhesion GO:0045785
Any process that activates or increases the frequency, rate or extent of cell adhesion.
1 Q9R0C8 (/IGI)
Vascular endothelial growth factor receptor signaling pathway GO:0048010
Any series of molecular signals initiated by the binding of an extracellular ligand to a vascular endothelial growth factor receptor (VEGFR) located on the surface of the receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 Q9UKW4 (/TAS)
Ephrin receptor signaling pathway GO:0048013
The series of molecular signals generated as a consequence of an ephrin receptor binding to an ephrin.
1 Q9UKW4 (/TAS)
B cell receptor signaling pathway GO:0050853
A series of molecular signals initiated by the cross-linking of an antigen receptor on a B cell.
1 Q9UKW4 (/IMP)
B cell receptor signaling pathway GO:0050853
A series of molecular signals initiated by the cross-linking of an antigen receptor on a B cell.
1 Q9R0C8 (/ISO)
Regulation of small GTPase mediated signal transduction GO:0051056
Any process that modulates the frequency, rate or extent of small GTPase mediated signal transduction.
1 Q9UKW4 (/TAS)

There are 5 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 Q9R0C8 (/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 Q9UKW4 (/TAS)
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 Q9R0C8 (/IDA)
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 Q9UKW4 (/IDA)
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 Q9R0C8 (/ISO)
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