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:

"
YojJ-like
".

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 6: acid-sensing ion channel 2

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 14 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
Ligand-gated sodium channel activity GO:0015280
Enables the transmembrane transfer of a sodium ion by a channel that opens when a specific ligand has been bound by the channel complex or one of its constituent parts.
5 Q708S6 (/IDA) Q708S7 (/IDA) Q708S7 (/IDA) Q925H0 (/IDA) Q925H0 (/IDA)
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).
4 Q16515 (/IPI) Q16515 (/IPI) Q925H0 (/IPI) Q925H0 (/IPI)
Acid-sensing ion channel activity GO:0044736
Enables the transmembrane transfer of a sodium ion by a neuronal, voltage-insensitive channel that opens when an extracellular proton has been bound by the channel complex.
4 Q708S6 (/ISS) Q708S7 (/ISS) Q708S7 (/ISS) Q7T1N4 (/ISS)
Ion channel activity GO:0005216
Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
3 Q62962 (/IDA) Q925H0 (/IDA) Q925H0 (/IDA)
Cation channel activity GO:0005261
Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
3 Q708S6 (/IGI) Q708S7 (/IGI) Q708S7 (/IGI)
Ion channel activity GO:0005216
Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
2 Q925H0 (/ISO) Q925H0 (/ISO)
Voltage-gated sodium channel activity GO:0005248
Enables the transmembrane transfer of a sodium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
2 Q925H0 (/ISO) Q925H0 (/ISO)
Cation channel activity GO:0005261
Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
2 Q925H0 (/IDA) Q925H0 (/IDA)
Cation channel activity GO:0005261
Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Ligand-gated sodium channel activity GO:0015280
Enables the transmembrane transfer of a sodium ion by a channel that opens when a specific ligand has been bound by the channel complex or one of its constituent parts.
2 Q16515 (/TAS) Q16515 (/TAS)
Ion gated channel activity GO:0022839
Enables the transmembrane transfer of a solute by a channel that opens in response to a specific ion stimulus.
2 Q925H0 (/IDA) Q925H0 (/IDA)
Ion gated channel activity GO:0022839
Enables the transmembrane transfer of a solute by a channel that opens in response to a specific ion stimulus.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Voltage-gated sodium channel activity GO:0005248
Enables the transmembrane transfer of a sodium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
1 Q62962 (/IDA)
Cation channel activity GO:0005261
Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
1 Q708S6 (/IPI)

There are 35 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 homotrimerization GO:0070207
The formation of a protein homotrimer, a macromolecular structure consisting of three noncovalently associated identical subunits.
4 Q708S6 (/ISS) Q708S7 (/ISS) Q708S7 (/ISS) Q7T1N4 (/ISS)
Cellular response to pH GO:0071467
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 a pH stimulus. pH is a measure of the acidity or basicity of an aqueous solution.
4 Q708S6 (/ISS) Q708S7 (/ISS) Q708S7 (/ISS) Q7T1N4 (/ISS)
Sodium ion transport GO:0006814
The directed movement of sodium ions (Na+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
3 Q62962 (/IDA) Q925H0 (/IDA) Q925H0 (/IDA)
Regulation of systemic arterial blood pressure by aortic arch baroreceptor feedback GO:0003026
The process that modulates blood pressure by sensing the amount of stretch occurring in the aorta and responding to the input via central nervous system control.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Cation transport GO:0006812
The directed movement of cations, atoms or small molecules with a net positive charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
2 Q925H0 (/IDA) Q925H0 (/IDA)
Cation transport GO:0006812
The directed movement of cations, atoms or small molecules with a net positive charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Sodium ion transport GO:0006814
The directed movement of sodium ions (Na+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
2 Q925H0 (/ISO) Q925H0 (/ISO)
Chemical synaptic transmission GO:0007268
The vesicular release of classical neurotransmitter molecules from a presynapse, across a chemical synapse, the subsequent activation of neurotransmitter receptors at the postsynapse of a target cell (neuron, muscle, or secretory cell) and the effects of this activation on the postsynaptic membrane potential and ionic composition of the postsynaptic cytosol. This process encompasses both spontaneous and evoked release of neurotransmitter and all parts of synaptic vesicle exocytosis. Evoked transmission starts with the arrival of an action potential at the presynapse.
2 Q16515 (/TAS) Q16515 (/TAS)
Central nervous system development GO:0007417
The process whose specific outcome is the progression of the central nervous system over time, from its formation to the mature structure. The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the brain and spinal cord. In those invertebrates with a central nervous system it typically consists of a brain, cerebral ganglia and a nerve cord.
2 Q16515 (/TAS) Q16515 (/TAS)
Peripheral nervous system development GO:0007422
The process whose specific outcome is the progression of the peripheral nervous system over time, from its formation to the mature structure. The peripheral nervous system is one of the two major divisions of the nervous system. Nerves in the PNS connect the central nervous system (CNS) with sensory organs, other organs, muscles, blood vessels and glands.
2 Q16515 (/TAS) Q16515 (/TAS)
Phototransduction GO:0007602
The sequence of reactions within a cell required to convert absorbed photons into a molecular signal.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Sensory perception of sound GO:0007605
The series of events required for an organism to receive an auditory stimulus, convert it to a molecular signal, and recognize and characterize the signal. Sonic stimuli are detected in the form of vibrations and are processed to form a sound.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Response to mechanical stimulus GO:0009612
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a mechanical stimulus.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Response to acidic pH GO:0010447
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a pH stimulus with pH < 7. pH is a measure of the acidity or basicity of an aqueous solution.
2 Q925H0 (/IDA) Q925H0 (/IDA)
Response to acidic pH GO:0010447
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a pH stimulus with pH < 7. pH is a measure of the acidity or basicity of an aqueous solution.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Monovalent inorganic cation transport GO:0015672
The directed movement of inorganic cations with a valency of one into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Inorganic cations are atoms or small molecules with a positive charge which do not contain carbon in covalent linkage.
2 Q16515 (/TAS) Q16515 (/TAS)
Regulation of vasoconstriction GO:0019229
Any process that modulates the frequency, rate or extent of reductions in the diameter of blood vessels.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Ion transmembrane transport GO:0034220
A process in which an ion is transported across a membrane.
2 Q925H0 (/IDA) Q925H0 (/IDA)
Ion transmembrane transport GO:0034220
A process in which an ion is transported across a membrane.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Ion transmembrane transport GO:0034220
A process in which an ion is transported across a membrane.
2 Q16515 (/TAS) Q16515 (/TAS)
Regulation of ion transmembrane transport GO:0034765
Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Protein localization to synapse GO:0035418
Any process in which a protein is transported to, and/or maintained at the synapse, the junction between a nerve fiber of one neuron and another neuron or muscle fiber or glial cell.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Cellular response to drug GO:0035690
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 a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
2 Q925H0 (/ISO) Q925H0 (/ISO)
Regulation of membrane potential GO:0042391
Any process that modulates the establishment or extent of a membrane potential, the electric potential existing across any membrane arising from charges in the membrane itself and from the charges present in the media on either side of the membrane.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Negative regulation of apoptotic process GO:0043066
Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Sensory perception of sour taste GO:0050915
The series of events required to receive a sour taste stimulus, convert it to a molecular signal, and recognize and characterize the signal. This is a neurological process.
2 Q16515 (/IMP) Q16515 (/IMP)
Sensory perception of sour taste GO:0050915
The series of events required to receive a sour taste stimulus, convert it to a molecular signal, and recognize and characterize the signal. This is a neurological process.
2 Q925H0 (/ISO) Q925H0 (/ISO)
Detection of mechanical stimulus involved in sensory perception GO:0050974
The series of events in which a mechanical stimulus is received and converted into a molecular signal as part of sensory perception.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Positive regulation of synapse assembly GO:0051965
Any process that activates, maintains or increases the frequency, rate or extent of synapse assembly, the aggregation, arrangement and bonding together of a set of components to form a synapse.
2 Q925H0 (/IMP) Q925H0 (/IMP)
Cellular response to acidic pH GO:0071468
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 a pH stimulus with pH < 7. pH is a measure of the acidity or basicity of an aqueous solution.
2 Q925H0 (/ISO) Q925H0 (/ISO)
Positive regulation of cation channel activity GO:2001259
Any process that activates or increases the frequency, rate or extent of cation channel activity.
2 Q925H0 (/ISO) Q925H0 (/ISO)
Cellular response to drug GO:0035690
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 a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
1 Q62962 (/IDA)
Sodium ion transmembrane transport GO:0035725
A process in which a sodium ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
1 Q7T1N4 (/ISS)
Cellular response to acidic pH GO:0071468
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 a pH stimulus with pH < 7. pH is a measure of the acidity or basicity of an aqueous solution.
1 Q62962 (/IDA)
Positive regulation of cation channel activity GO:2001259
Any process that activates or increases the frequency, rate or extent of cation channel activity.
1 Q62962 (/IDA)

There are 10 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
Integral component of plasma membrane GO:0005887
The component of the plasma 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.
5 Q708S6 (/IDA) Q708S7 (/IDA) Q708S7 (/IDA) Q925H0 (/IDA) Q925H0 (/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.
2 Q16515 (/TAS) Q16515 (/TAS)
Integral component of plasma membrane GO:0005887
The component of the plasma 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 Q16515 (/TAS) Q16515 (/TAS)
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 Q925H0 (/IDA) Q925H0 (/IDA)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
2 Q925H0 (/IDA) Q925H0 (/IDA)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
2 Q925H0 (/IDA) Q925H0 (/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.
2 Q925H0 (/IDA) Q925H0 (/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 Q925H0 (/IDA) Q925H0 (/IDA)
Integral component of plasma membrane GO:0005887
The component of the plasma 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 Q708S6 (/IPI)
Integral component of plasma membrane GO:0005887
The component of the plasma 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 Q7T1N4 (/ISS)
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