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: waiting to be named.

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 1: syntaxin-binding protein 5 isoform X1

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 7 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
SNARE binding GO:0000149
Interacting selectively and non-covalently with a SNARE (soluble N-ethylmaleimide-sensitive factor attached protein receptor) protein.
5 A4V4D2 (/ISS) Q86NY8 (/ISS) Q8SX12 (/ISS) Q9VYK5 (/ISS) Q9VYK6 (/ISS)
Syntaxin-1 binding GO:0017075
Interacting selectively and non-covalently with the SNAP receptor syntaxin-1.
2 Q8K400 (/IDA) Q9WU70 (/IDA)
Syntaxin-1 binding GO:0017075
Interacting selectively and non-covalently with the SNAP receptor syntaxin-1.
2 Q5T5C0 (/ISS) Q5T5C0 (/ISS)
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).
1 Q8K400 (/IPI)
Syntaxin-1 binding GO:0017075
Interacting selectively and non-covalently with the SNAP receptor syntaxin-1.
1 Q8K400 (/IPI)
Syntaxin-1 binding GO:0017075
Interacting selectively and non-covalently with the SNAP receptor syntaxin-1.
1 Q8K400 (/ISO)
Syntaxin binding GO:0019905
Interacting selectively and non-covalently with a syntaxin, a SNAP receptor involved in the docking of synaptic vesicles at the presynaptic zone of a synapse.
1 Q8K400 (/IPI)

There are 25 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
Exocytosis GO:0006887
A process of secretion by a cell that results in the release of intracellular molecules (e.g. hormones, matrix proteins) contained within a membrane-bounded vesicle. Exocytosis can occur either by full fusion, when the vesicle collapses into the plasma membrane, or by a kiss-and-run mechanism that involves the formation of a transient contact, a pore, between a granule (for exemple of chromaffin cells) and the plasma membrane. The latter process most of the time leads to only partial secretion of the granule content. Exocytosis begins with steps that prepare vesicles for fusion with the membrane (tethering and docking) and ends when molecules are secreted from the cell.
5 A4V4D2 (/ISS) Q86NY8 (/ISS) Q8SX12 (/ISS) Q9VYK5 (/ISS) Q9VYK6 (/ISS)
Golgi to plasma membrane transport GO:0006893
The directed movement of substances from the Golgi to the plasma membrane in transport vesicles that move from the trans-Golgi network to the plasma membrane, where they fuse and release their contents by exocytosis.
5 A4V4D2 (/ISS) Q86NY8 (/ISS) Q8SX12 (/ISS) Q9VYK5 (/ISS) Q9VYK6 (/ISS)
Establishment or maintenance of cell polarity GO:0007163
Any cellular process that results in the specification, formation or maintenance of anisotropic intracellular organization or cell growth patterns.
5 A4V4D2 (/NAS) Q86NY8 (/NAS) Q8SX12 (/NAS) Q9VYK5 (/NAS) Q9VYK6 (/NAS)
Neurotransmitter secretion GO:0007269
The regulated release of neurotransmitter from the presynapse into the synaptic cleft via calcium-regulated exocytosis during synaptic transmission.
5 A4V4D2 (/NAS) Q86NY8 (/NAS) Q8SX12 (/NAS) Q9VYK5 (/NAS) Q9VYK6 (/NAS)
Long-term memory GO:0007616
The memory process that deals with the storage, retrieval and modification of information a long time (typically weeks, months or years) after receiving that information. This type of memory is typically dependent on gene transcription regulated by second messenger activation.
5 A4V4D2 (/IMP) Q86NY8 (/IMP) Q8SX12 (/IMP) Q9VYK5 (/IMP) Q9VYK6 (/IMP)
Synaptic vesicle exocytosis GO:0016079
Fusion of intracellular membrane-bounded vesicles with the pre-synaptic membrane of the neuronal cell resulting in release of neurotransmitter into the synaptic cleft.
5 A4V4D2 (/ISS) Q86NY8 (/ISS) Q8SX12 (/ISS) Q9VYK5 (/ISS) Q9VYK6 (/ISS)
Synaptic vesicle priming GO:0016082
A process that converts synaptic vesicles to a state of competence for calcium triggered fusion with the active zone membrane by bringing the two membranes into very close proximity. Priming typically (but not always) occurs after docking (Jahn and Fasshauer, 2012). Primed vesicles are also capable of spontaneously fusing with the active zone membrane.
5 A4V4D2 (/NAS) Q86NY8 (/NAS) Q8SX12 (/NAS) Q9VYK5 (/NAS) Q9VYK6 (/NAS)
Regulation of neuromuscular synaptic transmission GO:1900073
Any process that modulates the frequency, rate or extent of neuromuscular synaptic transmission.
5 A4V4D2 (/IMP) Q86NY8 (/IMP) Q8SX12 (/IMP) Q9VYK5 (/IMP) Q9VYK6 (/IMP)
Regulation of exocytosis GO:0017157
Any process that modulates the frequency, rate or extent of exocytosis.
2 Q5DQR4 (/IDA) Q8K400 (/IDA)
Regulation of exocytosis GO:0017157
Any process that modulates the frequency, rate or extent of exocytosis.
2 Q5T5C0 (/TAS) Q5T5C0 (/TAS)
Positive regulation of exocytosis GO:0045921
Any process that activates or increases the frequency, rate or extent of exocytosis.
2 Q5T5C0 (/ISS) Q5T5C0 (/ISS)
Regulation of synaptic vesicle exocytosis GO:2000300
Any process that modulates the frequency, rate or extent of synaptic vesicle exocytosis.
2 Q5DQR4 (/IDA) Q8K400 (/IDA)
Regulation of synaptic vesicle exocytosis GO:2000300
Any process that modulates the frequency, rate or extent of synaptic vesicle exocytosis.
2 Q5DQR4 (/IMP) Q8K400 (/IMP)
Exocytosis GO:0006887
A process of secretion by a cell that results in the release of intracellular molecules (e.g. hormones, matrix proteins) contained within a membrane-bounded vesicle. Exocytosis can occur either by full fusion, when the vesicle collapses into the plasma membrane, or by a kiss-and-run mechanism that involves the formation of a transient contact, a pore, between a granule (for exemple of chromaffin cells) and the plasma membrane. The latter process most of the time leads to only partial secretion of the granule content. Exocytosis begins with steps that prepare vesicles for fusion with the membrane (tethering and docking) and ends when molecules are secreted from the cell.
1 Q8K400 (/IDA)
Axonogenesis GO:0007409
De novo generation of a long process of a neuron, including the terminal branched region. Refers to the morphogenesis or creation of shape or form of the developing axon, which carries efferent (outgoing) action potentials from the cell body towards target cells.
1 Q8K400 (/TAS)
Regulation of synaptic vesicle priming GO:0010807
Any process that modulates the frequency, rate or extent of synaptic vesicle priming. Synaptic vesicle priming is the formation of SNARE-containing complexes, bringing synaptic vesicle membrane and plasma membranes into close proximity and thereby facilitating membrane fusion.
1 Q8K400 (/IDA)
Regulation of synaptic vesicle priming GO:0010807
Any process that modulates the frequency, rate or extent of synaptic vesicle priming. Synaptic vesicle priming is the formation of SNARE-containing complexes, bringing synaptic vesicle membrane and plasma membranes into close proximity and thereby facilitating membrane fusion.
1 Q8K400 (/IMP)
Glucose homeostasis GO:0042593
Any process involved in the maintenance of an internal steady state of glucose within an organism or cell.
1 Q5DQR4 (/IMP)
Positive regulation of exocytosis GO:0045921
Any process that activates or increases the frequency, rate or extent of exocytosis.
1 Q8K400 (/IDA)
Positive regulation of exocytosis GO:0045921
Any process that activates or increases the frequency, rate or extent of exocytosis.
1 Q9WU70 (/TAS)
Negative regulation of insulin secretion GO:0046676
Any process that stops, prevents, or reduces the frequency, rate or extent of the regulated release of insulin.
1 Q5DQR4 (/IDA)
Synaptic vesicle cycle GO:0099504
A biological process in which synaptic vesicles are loaded with neurotransmitters, move to the active zone, exocytose and are then recycled via endocytosis, ultimately leading to reloading with neurotransmitters.
1 Q9WU70 (/IDA)
Synaptic vesicle cycle GO:0099504
A biological process in which synaptic vesicles are loaded with neurotransmitters, move to the active zone, exocytose and are then recycled via endocytosis, ultimately leading to reloading with neurotransmitters.
1 Q9WU70 (/IMP)
Synaptic vesicle cycle GO:0099504
A biological process in which synaptic vesicles are loaded with neurotransmitters, move to the active zone, exocytose and are then recycled via endocytosis, ultimately leading to reloading with neurotransmitters.
1 Q8K400 (/ISO)
Regulation of synaptic vesicle exocytosis GO:2000300
Any process that modulates the frequency, rate or extent of synaptic vesicle exocytosis.
1 Q5DQR4 (/EXP)

There are 27 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
Neuromuscular junction GO:0031594
The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.
7 A4V4D2 (/IDA) Q5DQR4 (/IDA) Q86NY8 (/IDA) Q8SX12 (/IDA) Q9VYK5 (/IDA) Q9VYK6 (/IDA) Q9WU70 (/IDA)
Synaptic vesicle GO:0008021
A secretory organelle, typically 50 nm in diameter, of presynaptic nerve terminals; accumulates in high concentrations of neurotransmitters and secretes these into the synaptic cleft by fusion with the 'active zone' of the presynaptic plasma membrane.
5 A4V4D2 (/NAS) Q86NY8 (/NAS) Q8SX12 (/NAS) Q9VYK5 (/NAS) Q9VYK6 (/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.
2 Q5T5C0 (/IDA) Q5T5C0 (/IDA)
Acetylcholine-gated channel complex GO:0005892
A homo- or hetero-pentameric protein complex that forms a transmembrane channel through which ions may pass in response to acetylcholine binding.
2 Q5T5C0 (/ISS) Q5T5C0 (/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.
1 Q8K400 (/ISO)
Acetylcholine-gated channel complex GO:0005892
A homo- or hetero-pentameric protein complex that forms a transmembrane channel through which ions may pass in response to acetylcholine binding.
1 Q8K400 (/IDA)
Synaptic vesicle GO:0008021
A secretory organelle, typically 50 nm in diameter, of presynaptic nerve terminals; accumulates in high concentrations of neurotransmitters and secretes these into the synaptic cleft by fusion with the 'active zone' of the presynaptic plasma membrane.
1 Q9WU70 (/EXP)
Synaptic vesicle GO:0008021
A secretory organelle, typically 50 nm in diameter, of presynaptic nerve terminals; accumulates in high concentrations of neurotransmitters and secretes these into the synaptic cleft by fusion with the 'active zone' of the presynaptic plasma membrane.
1 Q9WU70 (/IDA)
Synaptic vesicle GO:0008021
A secretory organelle, typically 50 nm in diameter, of presynaptic nerve terminals; accumulates in high concentrations of neurotransmitters and secretes these into the synaptic cleft by fusion with the 'active zone' of the presynaptic plasma membrane.
1 Q8K400 (/ISO)
Secretory granule GO:0030141
A small subcellular vesicle, surrounded by a membrane, that is formed from the Golgi apparatus and contains a highly concentrated protein destined for secretion. Secretory granules move towards the periphery of the cell and upon stimulation, their membranes fuse with the cell membrane, and their protein load is exteriorized. Processing of the contained protein may take place in secretory granules.
1 Q8K400 (/NAS)
Secretory granule GO:0030141
A small subcellular vesicle, surrounded by a membrane, that is formed from the Golgi apparatus and contains a highly concentrated protein destined for secretion. Secretory granules move towards the periphery of the cell and upon stimulation, their membranes fuse with the cell membrane, and their protein load is exteriorized. Processing of the contained protein may take place in secretory granules.
1 Q9WU70 (/TAS)
Neuromuscular junction GO:0031594
The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.
1 Q5DQR4 (/EXP)
Neuromuscular junction GO:0031594
The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.
1 Q5DQR4 (/IMP)
Neuromuscular junction GO:0031594
The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.
1 Q8K400 (/ISO)
Extrinsic component of neuronal dense core vesicle membrane GO:0098674
The component of the neuronal dense core vesicle 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 Q8K400 (/IDA)
Extrinsic component of neuronal dense core vesicle membrane GO:0098674
The component of the neuronal dense core vesicle 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 Q8K400 (/IMP)
Schaffer collateral - CA1 synapse GO:0098685
A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.
1 Q9WU70 (/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 Q8K400 (/ISO)
Hippocampal mossy fiber to CA3 synapse GO:0098686
One of the giant synapses that form between the mossy fiber axons of dentate gyrus granule cells and the large complex spines of CA3 pyramidal cells. It consists of a giant bouton known as the mossy fiber expansion, synapsed to the complex, multiheaded spine (thorny excresence) of a CA3 pyramidal cell.
1 Q8K400 (/IDA)
Hippocampal mossy fiber to CA3 synapse GO:0098686
One of the giant synapses that form between the mossy fiber axons of dentate gyrus granule cells and the large complex spines of CA3 pyramidal cells. It consists of a giant bouton known as the mossy fiber expansion, synapsed to the complex, multiheaded spine (thorny excresence) of a CA3 pyramidal cell.
1 Q8K400 (/IMP)
Presynapse GO:0098793
The part of a synapse that is part of the presynaptic cell.
1 Q8K400 (/IDA)
Extrinsic component of presynaptic membrane GO:0098888
The component of the presynaptic 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 Q9WU70 (/IDA)
Extrinsic component of presynaptic membrane GO:0098888
The component of the presynaptic 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 Q8K400 (/ISO)
Neuronal dense core vesicle GO:0098992
A dense core vesicle (granule) that is part of a neuron. These vesicles typically contain neuropeptides. They can be found in all parts of neurons, including the soma, dendrites, axonal swellings (varicosities) and synaptic terminals.
1 Q5DQR4 (/IDA)
Neuronal dense core vesicle GO:0098992
A dense core vesicle (granule) that is part of a neuron. These vesicles typically contain neuropeptides. They can be found in all parts of neurons, including the soma, dendrites, axonal swellings (varicosities) and synaptic terminals.
1 Q5DQR4 (/IMP)
Presynaptic cytosol GO:0099523
The region of the cytosol consisting of all cytosol that is part of the presynapse.
1 Q9WU70 (/IDA)
Presynaptic cytosol GO:0099523
The region of the cytosol consisting of all cytosol that is part of the presynapse.
1 Q8K400 (/ISO)
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