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 2: syntaxin-6 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 3 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).
12 O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O60499 (/IPI) O60499 (/IPI)
(2 more)
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.
10 O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O60499 (/IPI) O60499 (/IPI)
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 Q9JKK1 (/ISO)

There are 20 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 protein localization GO:0032880
Any process that modulates the frequency, rate or extent of any process in which a protein is transported to, or maintained in, a specific location.
10 O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O60499 (/IMP) O60499 (/IMP)
Vesicle fusion GO:0006906
Fusion of the membrane of a transport vesicle with its target membrane.
8 O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI) O43752 (/IPI)
Endocytic recycling GO:0032456
The directed movement of membrane-bounded vesicles from recycling endosomes back to the plasma membrane where they are recycled for further rounds of transport.
8 O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP)
Retrograde transport, endosome to Golgi GO:0042147
The directed movement of membrane-bounded vesicles from endosomes back to the trans-Golgi network where they are recycled for further rounds of transport.
8 O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP)
Golgi ribbon formation GO:0090161
The formation of a continuous ribbon of interconnected Golgi stacks of flat cisternae.
8 O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP) O43752 (/IMP)
Retrograde transport, endosome to Golgi GO:0042147
The directed movement of membrane-bounded vesicles from endosomes back to the trans-Golgi network where they are recycled for further rounds of transport.
2 O60499 (/IDA) O60499 (/IDA)
Vesicle fusion GO:0006906
Fusion of the membrane of a transport vesicle with its target membrane.
1 Q9JKK1 (/ISO)
Vesicle fusion GO:0006906
Fusion of the membrane of a transport vesicle with its target membrane.
1 Q5ZL19 (/ISS)
Endosome organization GO:0007032
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of endosomes.
1 Q9JKK1 (/IMP)
Endosome organization GO:0007032
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of endosomes.
1 Q5ZL19 (/ISS)
Synaptic vesicle to endosome fusion GO:0016189
Fusion of a synaptic vesicle with an endosome.
1 Q63635 (/IDA)
Synaptic vesicle to endosome fusion GO:0016189
Fusion of a synaptic vesicle with an endosome.
1 Q63635 (/IMP)
Synaptic vesicle to endosome fusion GO:0016189
Fusion of a synaptic vesicle with an endosome.
1 Q9JKK1 (/ISO)
Vesicle-mediated transport GO:0016192
A cellular transport process in which transported substances are moved in membrane-bounded vesicles; transported substances are enclosed in the vesicle lumen or located in the vesicle membrane. The process begins with a step that directs a substance to the forming vesicle, and includes vesicle budding and coating. Vesicles are then targeted to, and fuse with, an acceptor membrane.
1 Q63635 (/IDA)
Vesicle-mediated transport GO:0016192
A cellular transport process in which transported substances are moved in membrane-bounded vesicles; transported substances are enclosed in the vesicle lumen or located in the vesicle membrane. The process begins with a step that directs a substance to the forming vesicle, and includes vesicle budding and coating. Vesicles are then targeted to, and fuse with, an acceptor membrane.
1 Q9JKK1 (/ISO)
Endocytic recycling GO:0032456
The directed movement of membrane-bounded vesicles from recycling endosomes back to the plasma membrane where they are recycled for further rounds of transport.
1 Q9JKK1 (/ISO)
Regulation of protein localization GO:0032880
Any process that modulates the frequency, rate or extent of any process in which a protein is transported to, or maintained in, a specific location.
1 Q9JKK1 (/ISO)
Retrograde transport, endosome to Golgi GO:0042147
The directed movement of membrane-bounded vesicles from endosomes back to the trans-Golgi network where they are recycled for further rounds of transport.
1 Q9JKK1 (/ISO)
Golgi ribbon formation GO:0090161
The formation of a continuous ribbon of interconnected Golgi stacks of flat cisternae.
1 Q9JKK1 (/ISO)
Regulation of cellular protein localization GO:1903827
Any process that modulates the frequency, rate or extent of cellular protein localization. Cellular protein localization is any process in which a protein is transported to, and/or maintained in, a specific location and encompasses movement within the cell, from within the cell to the cell surface, or from one location to another at the surface of a cell.
1 Q9JKK1 (/IMP)

There are 36 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
Trans-Golgi network GO:0005802
The network of interconnected tubular and cisternal structures located within the Golgi apparatus on the side distal to the endoplasmic reticulum, from which secretory vesicles emerge. The trans-Golgi network is important in the later stages of protein secretion where it is thought to play a key role in the sorting and targeting of secreted proteins to the correct destination.
11 O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O60499 (/IDA) O60499 (/IDA)
(1 more)
Golgi apparatus GO:0005794
A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
10 O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) Q63635 (/IDA) Q9JKK1 (/IDA)
Trans-Golgi network membrane GO:0032588
The lipid bilayer surrounding any of the compartments that make up the trans-Golgi network.
10 O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O60499 (/TAS) O60499 (/TAS)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
10 O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O60499 (/IDA) O60499 (/IDA)
Golgi membrane GO:0000139
The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
8 O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
8 O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA)
Early endosome GO:0005769
A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.
8 O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/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.
8 O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/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.
8 O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS)
Clathrin-coated vesicle GO:0030136
A vesicle with a coat formed of clathrin connected to the membrane via one of the clathrin adaptor complexes.
8 O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS) O43752 (/TAS)
SNARE complex GO:0031201
A protein complex involved in membrane fusion; a stable ternary complex consisting of a four-helix bundle, usually formed from one R-SNARE and three Q-SNAREs with an ionic layer sandwiched between hydrophobic layers. One well-characterized example is the neuronal SNARE complex formed of synaptobrevin 2, syntaxin 1a, and SNAP-25.
8 O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA) O43752 (/IDA)
Trans-Golgi network membrane GO:0032588
The lipid bilayer surrounding any of the compartments that make up the trans-Golgi network.
8 O43752 (/ISS) O43752 (/ISS) O43752 (/ISS) O43752 (/ISS) O43752 (/ISS) O43752 (/ISS) O43752 (/ISS) O43752 (/ISS)
Vesicle GO:0031982
Any small, fluid-filled, spherical organelle enclosed by membrane.
2 O60499 (/IDA) O60499 (/IDA)
Trans-Golgi network membrane GO:0032588
The lipid bilayer surrounding any of the compartments that make up the trans-Golgi network.
2 Q63635 (/IDA) Q9JKK1 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q9JKK1 (/ISO)
Early endosome GO:0005769
A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.
1 Q9JKK1 (/ISO)
Early endosome GO:0005769
A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.
1 Q5ZL19 (/ISS)
Golgi apparatus GO:0005794
A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
1 Q9JKK1 (/ISO)
Trans-Golgi network GO:0005802
The network of interconnected tubular and cisternal structures located within the Golgi apparatus on the side distal to the endoplasmic reticulum, from which secretory vesicles emerge. The trans-Golgi network is important in the later stages of protein secretion where it is thought to play a key role in the sorting and targeting of secreted proteins to the correct destination.
1 Q9JKK1 (/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 Q9JKK1 (/ISO)
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 Q63635 (/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 Q9JKK1 (/ISO)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q9JKK1 (/IDA)
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.
1 Q63635 (/IDA)
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.
1 Q9JKK1 (/ISO)
Integral component of synaptic vesicle membrane GO:0030285
The component of the synaptic vesicle 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.
1 Q63635 (/EXP)
Integral component of synaptic vesicle membrane GO:0030285
The component of the synaptic vesicle 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.
1 Q63635 (/IDA)
Integral component of synaptic vesicle membrane GO:0030285
The component of the synaptic vesicle 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.
1 Q9JKK1 (/ISO)
SNARE complex GO:0031201
A protein complex involved in membrane fusion; a stable ternary complex consisting of a four-helix bundle, usually formed from one R-SNARE and three Q-SNAREs with an ionic layer sandwiched between hydrophobic layers. One well-characterized example is the neuronal SNARE complex formed of synaptobrevin 2, syntaxin 1a, and SNAP-25.
1 Q9JKK1 (/ISO)
Trans-Golgi network membrane GO:0032588
The lipid bilayer surrounding any of the compartments that make up the trans-Golgi network.
1 Q9JKK1 (/ISO)
Terminal bouton GO:0043195
Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal bouton is a specialized region of it.
1 Q63635 (/HDA)
Phagocytic vesicle GO:0045335
A membrane-bounded intracellular vesicle that arises from the ingestion of particulate material by phagocytosis.
1 Q9JKK1 (/IMP)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
1 Q9JKK1 (/ISO)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
1 Q5ZL19 (/ISS)
Recycling endosome GO:0055037
An organelle consisting of a network of tubules that functions in targeting molecules, such as receptors transporters and lipids, to the plasma membrane.
1 G3H7H9 (/IDA)
Recycling endosome GO:0055037
An organelle consisting of a network of tubules that functions in targeting molecules, such as receptors transporters and lipids, to the plasma membrane.
1 Q9JKK1 (/ISO)
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