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 69: MAGUK p55 subfamily member 6

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 8 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).
18 D3ZAA9 (/IPI) Q14168 (/IPI) Q9JLB0 (/IPI) Q9JLB0 (/IPI) Q9NZW5 (/IPI) Q9NZW5 (/IPI) Q9NZW5 (/IPI) Q9NZW5 (/IPI) Q9NZW5 (/IPI) Q9NZW5 (/IPI)
(8 more)
Guanylate kinase activity GO:0004385
Catalysis of the reaction: ATP + GMP = ADP + GDP.
2 Q9JLB0 (/ISS) Q9JLB0 (/ISS)
Structural constituent of postsynaptic density GO:0098919
The action of a molecule that contributes to the structural integrity of a postsynaptic density.
2 D3ZAA9 (/IDA) Q9WV34 (/IDA)
Structural constituent of postsynaptic density GO:0098919
The action of a molecule that contributes to the structural integrity of a postsynaptic density.
2 D3ZAA9 (/IMP) Q9WV34 (/IMP)
PDZ domain binding GO:0030165
Interacting selectively and non-covalently with a PDZ domain of a protein, a domain found in diverse signaling proteins.
1 D3ZAA9 (/IPI)
PDZ domain binding GO:0030165
Interacting selectively and non-covalently with a PDZ domain of a protein, a domain found in diverse signaling proteins.
1 Q9WV34 (/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 Q9WV34 (/IPI)
Structural constituent of postsynaptic density GO:0098919
The action of a molecule that contributes to the structural integrity of a postsynaptic density.
1 Q9WV34 (/ISO)

There are 13 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
Protein-containing complex assembly GO:0065003
The aggregation, arrangement and bonding together of a set of macromolecules to form a protein-containing complex.
13 Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS)
(3 more)
Open tracheal system development GO:0007424
The process whose specific outcome is the progression of an open tracheal system over time, from its formation to the mature structure. An open tracheal system is a respiratory system, a branched network of epithelial tubes that supplies oxygen to target tissues via spiracles. An example of this is found in Drosophila melanogaster.
5 M9PDB2 (/IMP) Q7KT16 (/IMP) Q8MR96 (/IMP) Q8SXI6 (/IMP) Q9VIJ4 (/IMP)
Septate junction assembly GO:0019991
The assembly of a septate junction, an intercellular junction found in invertebrate epithelia that is characterized by a ladder like appearance in electron micrographs and thought to provide structural strength and to provide a barrier to diffusion of solutes through the intercellular space.
5 M9PDB2 (/IMP) Q7KT16 (/IMP) Q8MR96 (/IMP) Q8SXI6 (/IMP) Q9VIJ4 (/IMP)
Dorsal trunk growth, open tracheal system GO:0035001
Growth of epithelial tubes that originate from pits in an open tracheal system and grow towards each other to meet and form a continuous open tube called the dorsal trunk. The dorsal trunk extends from the anterior spiracle to the posterior spiracle of the larva and forms the main airway of the insect tracheal system.
5 M9PDB2 (/IMP) Q7KT16 (/IMP) Q8MR96 (/IMP) Q8SXI6 (/IMP) Q9VIJ4 (/IMP)
Regulation of tube size, open tracheal system GO:0035151
Ensuring that an epithelial tube in an open tracheal system is of the correct length and diameter. Tracheal tubes undergo highly regulated tube-size increases during development, expanding up to 40 times their initial size by the end of larval life. Tube size appears to be controlled by regulation of apical membrane expansion and secretion, rather than by changes in cell number, size or shape.
5 M9PDB2 (/IMP) Q7KT16 (/IMP) Q8MR96 (/IMP) Q8SXI6 (/IMP) Q9VIJ4 (/IMP)
Regulation of tube length, open tracheal system GO:0035159
Ensuring that a tube in an open tracheal system is of the correct length.
5 M9PDB2 (/IMP) Q7KT16 (/IMP) Q8MR96 (/IMP) Q8SXI6 (/IMP) Q9VIJ4 (/IMP)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
2 Q14168 (/ISS) Q9WV34 (/ISS)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
1 D3ZAA9 (/IPI)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
1 Q9WV34 (/ISO)
Excitatory postsynaptic potential GO:0060079
A process that leads to a temporary increase in postsynaptic potential due to the flow of positively charged ions into the postsynaptic cell. The flow of ions that causes an EPSP is an excitatory postsynaptic current (EPSC) and makes it easier for the neuron to fire an action potential.
1 Q9WV34 (/IMP)
Excitatory postsynaptic potential GO:0060079
A process that leads to a temporary increase in postsynaptic potential due to the flow of positively charged ions into the postsynaptic cell. The flow of ions that causes an EPSP is an excitatory postsynaptic current (EPSC) and makes it easier for the neuron to fire an action potential.
1 Q14168 (/ISS)
Long-term synaptic potentiation GO:0060291
A process that modulates synaptic plasticity such that synapses are changed resulting in the increase in the rate, or frequency of synaptic transmission at the synapse.
1 Q9WV34 (/IMP)
Long-term synaptic potentiation GO:0060291
A process that modulates synaptic plasticity such that synapses are changed resulting in the increase in the rate, or frequency of synaptic transmission at the synapse.
1 Q14168 (/ISS)

There are 24 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
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
13 Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS) Q9NZW5 (/NAS)
(3 more)
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.
13 Q9NZW5 (/HDA) Q9NZW5 (/HDA) Q9NZW5 (/HDA) Q9NZW5 (/HDA) Q9NZW5 (/HDA) Q9NZW5 (/HDA) Q9NZW5 (/HDA) Q9NZW5 (/HDA) Q9NZW5 (/HDA) Q9NZW5 (/HDA)
(3 more)
Septate junction GO:0005918
A cell-cell junction that forms a continuous band around each cell in an epithelium; within the septate junction the membranes of adjacent cells maintain a constant distance of approximately 15 nm; found in arthropods.
5 M9PDB2 (/IDA) Q7KT16 (/IDA) Q8MR96 (/IDA) Q8SXI6 (/IDA) Q9VIJ4 (/IDA)
Lateral plasma membrane GO:0016328
The portion of the plasma membrane at the lateral side of the cell. In epithelial cells, lateral plasma membranes are on the sides of cells which lie at the interface of adjacent cells.
5 M9PDB2 (/IDA) Q7KT16 (/IDA) Q8MR96 (/IDA) Q8SXI6 (/IDA) Q9VIJ4 (/IDA)
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 D3ZAA9 (/ISS) Q9WV34 (/ISS)
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 Q9JLB0 (/IDA) Q9JLB0 (/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.
2 Q14168 (/ISS) Q9WV34 (/ISS)
Integral component of membrane GO:0016021
The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
2 Q9JLB0 (/ISS) Q9JLB0 (/ISS)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
2 D3ZAA9 (/IDA) Q9WV34 (/IDA)
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 Q14168 (/IDA)
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 Q9WV34 (/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 D3ZAA9 (/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 Q9WV34 (/ISO)
Dendrite membrane GO:0032590
The portion of the plasma membrane surrounding a dendrite.
1 Q9WV34 (/IDA)
Dendrite membrane GO:0032590
The portion of the plasma membrane surrounding a dendrite.
1 Q14168 (/ISS)
Dendritic spine GO:0043197
A small, membranous protrusion from a dendrite that forms a postsynaptic compartment - typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable including \thin\, \stubby\, \mushroom\, and \branched\, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.
1 Q9WV34 (/IDA)
Dendritic spine GO:0043197
A small, membranous protrusion from a dendrite that forms a postsynaptic compartment - typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable including \thin\, \stubby\, \mushroom\, and \branched\, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.
1 Q14168 (/ISS)
Dendritic shaft GO:0043198
Cylindric portion of the dendrite, directly stemming from the perikaryon, and carrying the dendritic spines.
1 Q9WV34 (/IDA)
Dendritic shaft GO:0043198
Cylindric portion of the dendrite, directly stemming from the perikaryon, and carrying the dendritic spines.
1 Q14168 (/ISS)
Schaffer collateral - CA1 synapse GO:0098685
A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.
1 Q9WV34 (/IDA)
Schaffer collateral - CA1 synapse GO:0098685
A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.
1 Q9WV34 (/IMP)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 D3ZAA9 (/IMP)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 Q9WV34 (/ISO)
Anchored component of postsynaptic density membrane GO:0099031
The component of the postsynaptic density membrane consisting of the gene products that are tethered to the membrane only by a covalently attached anchor, such as a lipid group that is embedded in the membrane. Gene products with peptide sequences that are embedded in the membrane are excluded from this grouping.
1 Q9WV34 (/IDA)