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:

"
SH3 Domains
".

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 4: Sorbin and SH3 domain-containing protein 1 isoform...

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 19 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).
6 O60504 (/IPI) O94875 (/IPI) Q3UTJ2 (/IPI) Q62417 (/IPI) Q8K0M3 (/IPI) Q9BX66 (/IPI)
Insulin receptor binding GO:0005158
Interacting selectively and non-covalently with the insulin receptor.
2 Q62417 (/IDA) Q9BX66 (/IDA)
Structural constituent of cytoskeleton GO:0005200
The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
2 O60504 (/TAS) O94875 (/TAS)
Transcription factor binding GO:0008134
Interacting selectively and non-covalently with a transcription factor, a protein required to initiate or regulate transcription.
2 Q62417 (/IPI) Q9R1Z8 (/IPI)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 O94875 (/HDA)
Actin binding GO:0003779
Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
1 Q9BX66 (/TAS)
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 Q9BX66 (/IC)
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 Q62417 (/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 Q9BX66 (/ISS)
Insulin receptor binding GO:0005158
Interacting selectively and non-covalently with the insulin receptor.
1 Q62417 (/IPI)
Insulin receptor binding GO:0005158
Interacting selectively and non-covalently with the insulin receptor.
1 Q62417 (/ISO)
Cytoskeletal protein binding GO:0008092
Interacting selectively and non-covalently with any protein component of any cytoskeleton (actin, microtubule, or intermediate filament cytoskeleton).
1 Q9BX66 (/TAS)
Cytoskeletal adaptor activity GO:0008093
The binding activity of a molecule that brings together a cytoskeletal protein and one or more other molecules, permitting them to function in a coordinated way.
1 O94875 (/TAS)
Structural constituent of muscle GO:0008307
The action of a molecule that contributes to the structural integrity of a muscle fiber.
1 O94875 (/TAS)
Vinculin binding GO:0017166
Interacting selectively and non-covalently with vinculin, a protein found in muscle, fibroblasts, and epithelial cells that binds actin and appears to mediate attachment of actin filaments to integral proteins of the plasma membrane.
1 O60504 (/IPI)
Vinculin binding GO:0017166
Interacting selectively and non-covalently with vinculin, a protein found in muscle, fibroblasts, and epithelial cells that binds actin and appears to mediate attachment of actin filaments to integral proteins of the plasma membrane.
1 Q9R1Z8 (/ISO)
Protein kinase binding GO:0019901
Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate.
1 Q62417 (/IDA)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
1 Q3UTJ2 (/IPI)
Ubiquitin protein ligase binding GO:0031625
Interacting selectively and non-covalently with a ubiquitin protein ligase enzyme, any of the E3 proteins.
1 Q62417 (/ISO)

There are 38 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
Muscle contraction GO:0006936
A process in which force is generated within muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis.
2 O60504 (/TAS) Q9BX66 (/TAS)
Acetylcholine receptor signaling pathway GO:0095500
The series of molecular signals generated as a consequence of an acetylcholine receptor binding to one of its physiological ligands.
2 Q3UTJ2 (/IGI) Q62417 (/IGI)
Regulation of skeletal muscle acetylcholine-gated channel clustering GO:1904393
Any process that modulates the frequency, rate or extent of skeletal muscle acetylcholine-gated channel clustering.
2 Q3UTJ2 (/IGI) Q62417 (/IGI)
Negative regulation of transcription by RNA polymerase II GO:0000122
Any process that stops, prevents, or reduces the frequency, rate or extent of transcription mediated by RNA polymerase II.
1 Q9R1Z8 (/IGI)
Negative regulation of transcription by RNA polymerase II GO:0000122
Any process that stops, prevents, or reduces the frequency, rate or extent of transcription mediated by RNA polymerase II.
1 Q9R1Z8 (/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 O60504 (/TAS)
Cell-matrix adhesion GO:0007160
The binding of a cell to the extracellular matrix via adhesion molecules.
1 Q9BX66 (/TAS)
Notch signaling pathway GO:0007219
A series of molecular signals initiated by the binding of an extracellular ligand to the receptor Notch on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 Q3UTJ2 (/IDA)
Insulin receptor signaling pathway GO:0008286
The series of molecular signals generated as a consequence of the insulin receptor binding to insulin.
1 Q62417 (/IC)
Insulin receptor signaling pathway GO:0008286
The series of molecular signals generated as a consequence of the insulin receptor binding to insulin.
1 Q62417 (/IDA)
Insulin receptor signaling pathway GO:0008286
The series of molecular signals generated as a consequence of the insulin receptor binding to insulin.
1 Q9BX66 (/ISS)
Cell-substrate adhesion GO:0031589
The attachment of a cell to the underlying substrate via adhesion molecules.
1 Q9R1Z8 (/IDA)
Cellular response to insulin stimulus GO:0032869
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 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 Q62417 (/IC)
Cellular response to insulin stimulus GO:0032869
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 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 Q62417 (/IMP)
Cellular response to insulin stimulus GO:0032869
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 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 Q9BX66 (/ISS)
Stress fiber assembly GO:0043149
The aggregation, arrangement and bonding together of a set of components to form a stress fiber. A stress fiber is a contractile actin filament bundle that consists of short actin filaments with alternating polarity.
1 Q62417 (/IDA)
Stress fiber assembly GO:0043149
The aggregation, arrangement and bonding together of a set of components to form a stress fiber. A stress fiber is a contractile actin filament bundle that consists of short actin filaments with alternating polarity.
1 Q9BX66 (/ISS)
Positive regulation of MAPK cascade GO:0043410
Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the MAPK cascade.
1 Q8K0M3 (/IDA)
Positive regulation of MAPK cascade GO:0043410
Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the MAPK cascade.
1 Q9R1Z8 (/IMP)
Positive regulation of glycogen biosynthetic process GO:0045725
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of glycogen.
1 Q62417 (/IMP)
Positive regulation of glycogen biosynthetic process GO:0045725
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of glycogen.
1 Q9BX66 (/ISS)
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 Q62417 (/IDA)
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 Q62417 (/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 Q9BX66 (/ISS)
Positive regulation of insulin receptor signaling pathway GO:0046628
Any process that increases the frequency, rate or extent of insulin receptor signaling.
1 Q62417 (/IDA)
Positive regulation of insulin receptor signaling pathway GO:0046628
Any process that increases the frequency, rate or extent of insulin receptor signaling.
1 Q9BX66 (/ISS)
Positive regulation of lipid biosynthetic process GO:0046889
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of lipids.
1 Q62417 (/IMP)
Positive regulation of lipid biosynthetic process GO:0046889
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of lipids.
1 Q9BX66 (/ISS)
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 Q62417 (/IDA)
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 Q9BX66 (/ISS)
Positive regulation of cytoskeleton organization GO:0051495
Any process that activates or increases the frequency, rate or extent of the formation, arrangement of constituent parts, or disassembly of cytoskeletal structures.
1 O60504 (/NAS)
Positive regulation of stress fiber assembly GO:0051496
Any process that activates or increases the frequency, rate or extent of the assembly of a stress fiber, a bundle of microfilaments and other proteins found in fibroblasts.
1 O60504 (/IDA)
Positive regulation of stress fiber assembly GO:0051496
Any process that activates or increases the frequency, rate or extent of the assembly of a stress fiber, a bundle of microfilaments and other proteins found in fibroblasts.
1 Q9R1Z8 (/ISO)
Cell growth involved in cardiac muscle cell development GO:0061049
The growth of a cardiac muscle cell, where growth contributes to the progression of the cell over time from its initial formation to its mature state.
1 O35413 (/IGI)
Cell growth involved in cardiac muscle cell development GO:0061049
The growth of a cardiac muscle cell, where growth contributes to the progression of the cell over time from its initial formation to its mature state.
1 Q3UTJ2 (/ISO)
Cell growth involved in cardiac muscle cell development GO:0061049
The growth of a cardiac muscle cell, where growth contributes to the progression of the cell over time from its initial formation to its mature state.
1 O94875 (/ISS)
Positive regulation of protein localization to plasma membrane GO:1903078
Any process that activates or increases the frequency, rate or extent of protein localization to plasma membrane.
1 Q62417 (/IMP)
Positive regulation of protein localization to plasma membrane GO:1903078
Any process that activates or increases the frequency, rate or extent of protein localization to plasma membrane.
1 Q9BX66 (/ISS)

There are 41 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
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
3 Q62417 (/IDA) Q9BX66 (/IDA) Q9R1Z8 (/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 O60504 (/TAS) Q9BX66 (/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 Q3UTJ2 (/IDA) Q9BX66 (/IDA)
Focal adhesion GO:0005925
Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
2 Q9BX66 (/IDA) Q9R1Z8 (/IDA)
Synapse GO:0045202
The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
2 Q3UTJ2 (/IDA) Q62417 (/IDA)
Stress fiber GO:0001725
A contractile actin filament bundle that consists of short actin filaments with alternating polarity, cross-linked by alpha-actinin and possibly other actin bundling proteins, and with myosin present in a periodic distribution along the fiber.
1 Q62417 (/IDA)
Stress fiber GO:0001725
A contractile actin filament bundle that consists of short actin filaments with alternating polarity, cross-linked by alpha-actinin and possibly other actin bundling proteins, and with myosin present in a periodic distribution along the fiber.
1 Q9BX66 (/ISS)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 Q62417 (/ISO)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 Q62417 (/ISS)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 O94875 (/NAS)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 O94875 (/TAS)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 O94875 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q3UTJ2 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q9R1Z8 (/IDA)
Centrosome GO:0005813
A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
1 Q9BX66 (/IDA)
Centrosome GO:0005813
A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
1 Q62417 (/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 Q62417 (/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 Q9BX66 (/ISS)
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.
1 Q62417 (/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 Q62417 (/ISO)
Insulin receptor complex GO:0005899
A disulfide-bonded, heterotetrameric receptor complex. The alpha chains are entirely extracellular, while each beta chain has one transmembrane domain. The ligand binds to the alpha subunit extracellular domain and the kinase is associated with the beta subunit intracellular domain.
1 Q62417 (/ISO)
Cell-cell adherens junction GO:0005913
An adherens junction which connects a cell to another cell.
1 Q62417 (/IDA)
Cell-cell adherens junction GO:0005913
An adherens junction which connects a cell to another cell.
1 Q9BX66 (/ISS)
Cell-cell adherens junction GO:0005913
An adherens junction which connects a cell to another cell.
1 Q9BX66 (/TAS)
Zonula adherens GO:0005915
A cell-cell adherens junction which forms a continuous belt near the apex of epithelial cells.
1 Q9BX66 (/TAS)
Cell-substrate adherens junction GO:0005924
An adherens junction which connects a cell to the extracellular matrix.
1 Q62417 (/IDA)
Cell-substrate adherens junction GO:0005924
An adherens junction which connects a cell to the extracellular matrix.
1 Q9BX66 (/ISS)
Focal adhesion GO:0005925
Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
1 O60504 (/HDA)
Focal adhesion GO:0005925
Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
1 Q62417 (/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 O35413 (/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 Q3UTJ2 (/ISO)
Actin cytoskeleton GO:0015629
The part of the cytoskeleton (the internal framework of a cell) composed of actin and associated proteins. Includes actin cytoskeleton-associated complexes.
1 O94875 (/TAS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q62417 (/IDA)
Nuclear matrix GO:0016363
The dense fibrillar network lying on the inner side of the nuclear membrane.
1 Q62417 (/IDA)
Z disc GO:0030018
Platelike region of a muscle sarcomere to which the plus ends of actin filaments are attached.
1 O94875 (/NAS)
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 O35413 (/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 Q3UTJ2 (/ISO)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 O35413 (/IDA)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 Q3UTJ2 (/ISO)
Membrane raft GO:0045121
Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
1 Q62417 (/IDA)
Membrane raft GO:0045121
Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
1 Q9BX66 (/ISS)
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