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:

"
SH2 domain
".

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 33: RAS p21 protein activator 1

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 36 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
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
3 P50904 (/IDA) Q8IR23 (/IDA) Q8IR23 (/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).
3 E9PYG6 (/IPI) P20936 (/IPI) P50904 (/IPI)
Phosphotyrosine residue binding GO:0001784
Interacting selectively and non-covalently with a phosphorylated tyrosine residue within a protein.
2 Q8IR23 (/IDA) Q8IR23 (/IDA)
Fibroblast growth factor receptor binding GO:0005104
Interacting selectively and non-covalently with the fibroblast growth factor receptor (FGFR).
2 Q8IR23 (/IDA) Q8IR23 (/IDA)
Torso binding GO:0005122
Interacting selectively and non-covalently with the torso (tor) protein, a receptor tyrosine kinase.
2 Q8IR23 (/IDA) Q8IR23 (/IDA)
Phosphotyrosine residue binding GO:0001784
Interacting selectively and non-covalently with a phosphorylated tyrosine residue within a protein.
1 P20936 (/IPI)
Phosphotyrosine residue binding GO:0001784
Interacting selectively and non-covalently with a phosphorylated tyrosine residue within a protein.
1 E9PYG6 (/ISO)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 P20936 (/TAS)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
1 P20936 (/EXP)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
1 E9PYG6 (/ISO)
GTPase activator activity GO:0005096
Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
1 P20936 (/TAS)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 P20936 (/IPI)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 E9PYG6 (/ISO)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 P09851 (/ISS)
Platelet-derived growth factor receptor binding GO:0005161
Interacting selectively and non-covalently with the platelet-derived growth factor receptor.
1 P50904 (/IDA)
Platelet-derived growth factor receptor binding GO:0005161
Interacting selectively and non-covalently with the platelet-derived growth factor receptor.
1 P50904 (/IPI)
Platelet-derived growth factor receptor binding GO:0005161
Interacting selectively and non-covalently with the platelet-derived growth factor receptor.
1 E9PYG6 (/ISO)
Transcription factor binding GO:0008134
Interacting selectively and non-covalently with a transcription factor, a protein required to initiate or regulate transcription.
1 P50904 (/IPI)
Transcription factor binding GO:0008134
Interacting selectively and non-covalently with a transcription factor, a protein required to initiate or regulate transcription.
1 E9PYG6 (/ISO)
Potassium channel inhibitor activity GO:0019870
Stops, prevents, or reduces the activity of a potassium channel.
1 P20936 (/NAS)
Kinase binding GO:0019900
Interacting selectively and non-covalently with a kinase, any enzyme that catalyzes the transfer of a phosphate group.
1 P50904 (/IPI)
Kinase binding GO:0019900
Interacting selectively and non-covalently with a kinase, any enzyme that catalyzes the transfer of a phosphate group.
1 E9PYG6 (/ISO)
Receptor tyrosine kinase binding GO:0030971
Interacting selectively and non-covalently with a receptor that possesses protein tyrosine kinase activity.
1 P50904 (/IPI)
Receptor tyrosine kinase binding GO:0030971
Interacting selectively and non-covalently with a receptor that possesses protein tyrosine kinase activity.
1 E9PYG6 (/ISO)
Protein kinase B binding GO:0043422
Interacting selectively and non-covalently with protein kinase B, an intracellular kinase that is important in regulating glucose metabolism.
1 P50904 (/IPI)
Protein kinase B binding GO:0043422
Interacting selectively and non-covalently with protein kinase B, an intracellular kinase that is important in regulating glucose metabolism.
1 E9PYG6 (/ISO)
Ion channel binding GO:0044325
Interacting selectively and non-covalently with one or more specific sites on an ion channel, a protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient.
1 P50904 (/IPI)
Ion channel binding GO:0044325
Interacting selectively and non-covalently with one or more specific sites on an ion channel, a protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient.
1 E9PYG6 (/ISO)
Protein-containing complex binding GO:0044877
Interacting selectively and non-covalently with a macromolecular complex.
1 P50904 (/IDA)
Protein-containing complex binding GO:0044877
Interacting selectively and non-covalently with a macromolecular complex.
1 P50904 (/IPI)
Protein-containing complex binding GO:0044877
Interacting selectively and non-covalently with a macromolecular complex.
1 E9PYG6 (/ISO)
GTPase binding GO:0051020
Interacting selectively and non-covalently with a GTPase, any enzyme that catalyzes the hydrolysis of GTP.
1 P20936 (/IPI)
GTPase binding GO:0051020
Interacting selectively and non-covalently with a GTPase, any enzyme that catalyzes the hydrolysis of GTP.
1 E9PYG6 (/ISO)
GTPase binding GO:0051020
Interacting selectively and non-covalently with a GTPase, any enzyme that catalyzes the hydrolysis of GTP.
1 P09851 (/ISS)
Protein tyrosine kinase binding GO:1990782
Interacting selectively and non-covalently with protein tyrosine kinase.
1 P50904 (/IPI)
Protein tyrosine kinase binding GO:1990782
Interacting selectively and non-covalently with protein tyrosine kinase.
1 E9PYG6 (/ISO)

There are 56 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
Vasculogenesis GO:0001570
The differentiation of endothelial cells from progenitor cells during blood vessel development, and the de novo formation of blood vessels and tubes.
6 P09851 (/ISS) P20936 (/ISS) P50904 (/ISS) Q4RUN4 (/ISS) Q59GK3 (/ISS) Q5RCK2 (/ISS)
Negative regulation of neuron apoptotic process GO:0043524
Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process in neurons.
6 P09851 (/ISS) P20936 (/ISS) P50904 (/ISS) Q4RUN4 (/ISS) Q59GK3 (/ISS) Q5RCK2 (/ISS)
Negative regulation of cell-matrix adhesion GO:0001953
Any process that stops, prevents, or reduces the rate or extent of cell adhesion to the extracellular matrix.
5 P09851 (/ISS) P50904 (/ISS) Q4RUN4 (/ISS) Q59GK3 (/ISS) Q5RCK2 (/ISS)
Negative regulation of cell adhesion GO:0007162
Any process that stops, prevents, or reduces the frequency, rate or extent of cell adhesion.
5 P09851 (/ISS) P50904 (/ISS) Q4RUN4 (/ISS) Q59GK3 (/ISS) Q5RCK2 (/ISS)
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.
5 P09851 (/ISS) P50904 (/ISS) Q4RUN4 (/ISS) Q59GK3 (/ISS) Q5RCK2 (/ISS)
Regulation of actin filament polymerization GO:0030833
Any process that modulates the frequency, rate or extent of the assembly of actin filaments by the addition of actin monomers to a filament.
5 P09851 (/ISS) P50904 (/ISS) Q4RUN4 (/ISS) Q59GK3 (/ISS) Q5RCK2 (/ISS)
Mitotic cytokinesis GO:0000281
A cell cycle process that results in the division of the cytoplasm of a cell after mitosis, resulting in the separation of the original cell into two daughter cells.
4 P09851 (/ISS) P20936 (/ISS) P50904 (/ISS) Q5RCK2 (/ISS)
Negative regulation of apoptotic process GO:0043066
Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process.
4 P50904 (/ISS) Q4RUN4 (/ISS) Q59GK3 (/ISS) Q5RCK2 (/ISS)
Blood vessel development GO:0001568
The process whose specific outcome is the progression of a blood vessel over time, from its formation to the mature structure. The blood vessel is the vasculature carrying blood.
3 F1R3X3 (/IGI) F6NI34 (/IGI) F8W2K7 (/IGI)
Blood vessel development GO:0001568
The process whose specific outcome is the progression of a blood vessel over time, from its formation to the mature structure. The blood vessel is the vasculature carrying blood.
3 F1R3X3 (/IMP) F6NI34 (/IMP) F8W2K7 (/IMP)
Ephrin receptor signaling pathway GO:0048013
The series of molecular signals generated as a consequence of an ephrin receptor binding to an ephrin.
3 F1R3X3 (/IGI) F6NI34 (/IGI) F8W2K7 (/IGI)
Mushroom body development GO:0016319
The process whose specific outcome is the progression of the mushroom body over time, from its formation to the mature structure. The mushroom body is composed of the prominent neuropil structures of the insect central brain, thought to be crucial for olfactory associated learning. These consist mainly of a bulbous calyx and tightly packaged arrays of thin parallel fibers of the Kenyon cells.
2 Q8IR23 (/IMP) Q8IR23 (/IMP)
Regulation of endocytosis GO:0030100
Any process that modulates the frequency, rate or extent of endocytosis.
2 Q8IR23 (/IMP) Q8IR23 (/IMP)
Negative regulation of fibroblast growth factor receptor signaling pathway GO:0040037
Any process that stops, prevents, or reduces the frequency, rate or extent of fibroblast growth factor receptor signaling pathway activity.
2 Q8IR23 (/IGI) Q8IR23 (/IGI)
Behavioral response to ethanol GO:0048149
Any process that results in a change in the behavior of an organism as a result of an ethanol stimulus.
2 Q8IR23 (/IMP) Q8IR23 (/IMP)
Negative regulation of torso signaling pathway GO:0120177
Any process that stops, prevents, or reduces the frequency, rate or extent of the torso signaling pathway.
2 Q8IR23 (/IMP) Q8IR23 (/IMP)
MAPK cascade GO:0000165
An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain an additional tiers: the upstream MAP4K. The kinases in each tier phosphorylate and activate the kinase in the downstream tier to transmit a signal within a cell.
1 P20936 (/TAS)
Positive regulation of protein phosphorylation GO:0001934
Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.
1 P50904 (/IMP)
Positive regulation of protein phosphorylation GO:0001934
Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.
1 E9PYG6 (/ISO)
Negative regulation of cell-matrix adhesion GO:0001953
Any process that stops, prevents, or reduces the rate or extent of cell adhesion to the extracellular matrix.
1 P20936 (/IDA)
Negative regulation of cell-matrix adhesion GO:0001953
Any process that stops, prevents, or reduces the rate or extent of cell adhesion to the extracellular matrix.
1 E9PYG6 (/ISO)
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 P50904 (/NAS)
Negative regulation of cell adhesion GO:0007162
Any process that stops, prevents, or reduces the frequency, rate or extent of cell adhesion.
1 P20936 (/IDA)
Negative regulation of cell adhesion GO:0007162
Any process that stops, prevents, or reduces the frequency, rate or extent of cell adhesion.
1 E9PYG6 (/ISO)
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 P20936 (/IDA)
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 E9PYG6 (/ISO)
Regulation of cell shape GO:0008360
Any process that modulates the surface configuration of a cell.
1 P20936 (/NAS)
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.
1 P50904 (/NAS)
Male genitalia development GO:0030539
The process whose specific outcome is the progression of the male genitalia over time, from its formation to the mature structure.
1 P50904 (/IEP)
Regulation of actin filament polymerization GO:0030833
Any process that modulates the frequency, rate or extent of the assembly of actin filaments by the addition of actin monomers to a filament.
1 P20936 (/IDA)
Regulation of actin filament polymerization GO:0030833
Any process that modulates the frequency, rate or extent of the assembly of actin filaments by the addition of actin monomers to a filament.
1 E9PYG6 (/ISO)
Response to insulin GO:0032868
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 insulin stimulus. Insulin is a polypeptide hormone produced by the islets of Langerhans of the pancreas in mammals, and by the homologous organs of other organisms.
1 P50904 (/IEP)
Intracellular signal transduction GO:0035556
The process in which a signal is passed on to downstream components within the cell, which become activated themselves to further propagate the signal and finally trigger a change in the function or state of the cell.
1 P20936 (/NAS)
Cellular response to platelet-derived growth factor stimulus GO:0036120
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 platelet-derived growth factor stimulus.
1 P50904 (/IDA)
Cellular response to platelet-derived growth factor stimulus GO:0036120
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 platelet-derived growth factor stimulus.
1 E9PYG6 (/ISO)
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 P50904 (/IDA)
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 E9PYG6 (/ISO)
Negative regulation of apoptotic process GO:0043066
Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process.
1 P20936 (/IDA)
Negative regulation of apoptotic process GO:0043066
Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process.
1 E9PYG6 (/ISO)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
1 P50904 (/IMP)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
1 E9PYG6 (/ISO)
Cellular response to fibroblast growth factor stimulus GO:0044344
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 an fibroblast growth factor stimulus.
1 P50904 (/IEP)
Positive regulation of glucose import GO:0046326
Any process that activates or increases the frequency, rate or extent of the import of the hexose monosaccharide glucose into a cell or organelle.
1 P50904 (/IMP)
Positive regulation of glucose import GO:0046326
Any process that activates or increases the frequency, rate or extent of the import of the hexose monosaccharide glucose into a cell or organelle.
1 E9PYG6 (/ISO)
Ephrin receptor signaling pathway GO:0048013
The series of molecular signals generated as a consequence of an ephrin receptor binding to an ephrin.
1 P20936 (/TAS)
Positive regulation of fibroblast proliferation GO:0048146
Any process that activates or increases the frequency, rate or extent of multiplication or reproduction of fibroblast cells.
1 P50904 (/IMP)
Positive regulation of fibroblast proliferation GO:0048146
Any process that activates or increases the frequency, rate or extent of multiplication or reproduction of fibroblast cells.
1 E9PYG6 (/ISO)
Blood vessel morphogenesis GO:0048514
The process in which the anatomical structures of blood vessels are generated and organized. The blood vessel is the vasculature carrying blood.
1 P20936 (/IMP)
Blood vessel morphogenesis GO:0048514
The process in which the anatomical structures of blood vessels are generated and organized. The blood vessel is the vasculature carrying blood.
1 E9PYG6 (/ISO)
Positive regulation of peptidyl-tyrosine phosphorylation GO:0050731
Any process that activates or increases the frequency, rate or extent of the phosphorylation of peptidyl-tyrosine.
1 P50904 (/IMP)
Positive regulation of peptidyl-tyrosine phosphorylation GO:0050731
Any process that activates or increases the frequency, rate or extent of the phosphorylation of peptidyl-tyrosine.
1 E9PYG6 (/ISO)
Regulation of RNA metabolic process GO:0051252
Any process that modulates the frequency, rate or extent of the chemical reactions and pathways involving RNA.
1 P20936 (/NAS)
Cellular response to epidermal growth factor stimulus GO:0071364
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 an epidermal growth factor stimulus.
1 P50904 (/IDA)
Cellular response to epidermal growth factor stimulus GO:0071364
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 an epidermal growth factor stimulus.
1 E9PYG6 (/ISO)
Activation of GTPase activity GO:0090630
Any process that initiates the activity of an inactive GTPase through the replacement of GDP by GTP.
1 P50904 (/IDA)
Activation of GTPase activity GO:0090630
Any process that initiates the activity of an inactive GTPase through the replacement of GDP by GTP.
1 E9PYG6 (/ISO)

There are 11 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.
3 P50904 (/IDA) Q8IR23 (/IDA) Q8IR23 (/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 E9PYG6 (/TAS) P20936 (/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.
2 E9PYG6 (/IDA) P50904 (/IDA)
Ruffle GO:0001726
Projection at the leading edge of a crawling cell; the protrusions are supported by a microfilament meshwork.
1 E9PYG6 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 P20936 (/NAS)
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 E9PYG6 (/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.
1 E9PYG6 (/ISO)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 P50904 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 E9PYG6 (/ISO)
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
1 P50904 (/IDA)
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
1 E9PYG6 (/ISO)