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:

"
Single Helix bin
".

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: Complexin, isoform AB

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 1 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
Neurotransmitter transmembrane transporter activity GO:0005326
Enables the directed movement of a neurotransmitter into, out of or within a cell, or between cells. Neurotransmitters are any chemical substance that is capable of transmitting (or inhibiting the transmission of) a nerve impulse from a neuron to another cell.
6 Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS)

There are 7 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
Neuromuscular synaptic transmission GO:0007274
The process of synaptic transmission from a neuron to a muscle, across a synapse.
6 Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/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.
6 Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/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.
6 Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS)
Regulation of neurotransmitter secretion GO:0046928
Any process that modulates the frequency, rate or extent of the regulated release of a neurotransmitter from a cell.
6 Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP)
Negative regulation of neurotransmitter secretion GO:0046929
Any process that stops, prevents, or reduces the frequency, rate or extent of the regulated release of a neurotransmitter.
6 Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP)
Modulation of chemical synaptic transmission GO:0050804
Any process that modulates the frequency or amplitude of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Amplitude, in this case, refers to the change in postsynaptic membrane potential due to a single instance of synaptic transmission.
6 Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP)
Synaptic growth at neuromuscular junction GO:0051124
The growth of a synapse at a neuromuscular junction, the site of apposition of a motor end plate and the subneural cleft of the skeletal muscle fiber that it innervates.
6 Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP) Q8IPM8 (/IMP)

There are 9 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.
6 Q8IPM8 (/HDA) Q8IPM8 (/HDA) Q8IPM8 (/HDA) Q8IPM8 (/HDA) Q8IPM8 (/HDA) Q8IPM8 (/HDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
6 Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
6 Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS) Q8IPM8 (/ISS)
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.
6 Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA)
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.
6 Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA)
Presynaptic active zone GO:0048786
A specialized region of the plasma membrane and cell cortex of a presynaptic neuron; encompasses a region of the plasma membrane where synaptic vesicles dock and fuse, and a specialized cortical cytoskeletal matrix.
6 Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA)
Type I terminal bouton GO:0061174
Terminal inflated portion of the axon of a glutamatergic neuron, containing the specialized apparatus necessary to release neurotransmitters that will induce the contraction of muscle. The axon terminus is considered to be the whole region of thickening and the terminal bouton is a specialized region of it.
6 Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA) Q8IPM8 (/IDA)
Axon GO:0030424
The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
1 Q9GUM7 (/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.
1 Q9GUM7 (/IDA)