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:

"
Periplasmic binding protein-like II
".

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 45: Putative glutamate receptor ionotropic NMDA 3A

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 30 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).
5 A2AIR4 (/IPI) A2AIR5 (/IPI) Q69Z52 (/IPI) Q8TCU5 (/IPI) Q9R1M7 (/IPI)
Glycine binding GO:0016594
Interacting selectively and non-covalently with glycine, aminoethanoic acid.
4 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO) Q91ZU9 (/ISO)
Neurotransmitter binding GO:0042165
Interacting selectively and non-covalently with a neurotransmitter, any chemical substance that is capable of transmitting (or inhibiting the transmission of) a nerve impulse from a neuron to another cell.
4 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO) Q91ZU9 (/ISO)
Ionotropic glutamate receptor activity GO:0004970
Catalysis of the transmembrane transfer of an ion by a channel that opens when glutamate has been bound by the channel complex or one of its constituent parts.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
NMDA glutamate receptor activity GO:0004972
An cation channel that opens in response to binding by extracellular glutmate, but only if glycine is also bound and the membrane is depolarized. Voltage gating is indirect, due to ejection of bound magnesium from the pore at permissive voltages.
3 A2AIR4 (/IMP) A2AIR5 (/IMP) Q69Z52 (/IMP)
NMDA glutamate receptor activity GO:0004972
An cation channel that opens in response to binding by extracellular glutmate, but only if glycine is also bound and the membrane is depolarized. Voltage gating is indirect, due to ejection of bound magnesium from the pore at permissive voltages.
3 A2AIR4 (/IPI) A2AIR5 (/IPI) Q69Z52 (/IPI)
NMDA glutamate receptor activity GO:0004972
An cation channel that opens in response to binding by extracellular glutmate, but only if glycine is also bound and the membrane is depolarized. Voltage gating is indirect, due to ejection of bound magnesium from the pore at permissive voltages.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Calcium channel activity GO:0005262
Enables the facilitated diffusion of a calcium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
3 A2AIR4 (/IDA) A2AIR5 (/IDA) Q69Z52 (/IDA)
Calcium channel activity GO:0005262
Enables the facilitated diffusion of a calcium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
3 A2AIR4 (/IMP) A2AIR5 (/IMP) Q69Z52 (/IMP)
Glycine binding GO:0016594
Interacting selectively and non-covalently with glycine, aminoethanoic acid.
3 Q8TCU5 (/IDA) Q8VHN2 (/IDA) Q9R1M7 (/IDA)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Protein phosphatase 2A binding GO:0051721
Interacting selectively and non-covalently with the enzyme protein phosphatase 2A.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Transmitter-gated ion channel activity involved in regulation of postsynaptic membrane potential GO:1904315
Any transmitter-gated ion channel activity that is involved in regulation of postsynaptic membrane potential.
3 A2AIR4 (/IDA) A2AIR5 (/IDA) Q69Z52 (/IDA)
Transmitter-gated ion channel activity involved in regulation of postsynaptic membrane potential GO:1904315
Any transmitter-gated ion channel activity that is involved in regulation of postsynaptic membrane potential.
3 A2AIR4 (/IMP) A2AIR5 (/IMP) Q69Z52 (/IMP)
NMDA glutamate receptor activity GO:0004972
An cation channel that opens in response to binding by extracellular glutmate, but only if glycine is also bound and the membrane is depolarized. Voltage gating is indirect, due to ejection of bound magnesium from the pore at permissive voltages.
2 Q8TCU5 (/IDA) Q9R1M7 (/IDA)
Neurotransmitter binding GO:0042165
Interacting selectively and non-covalently with a neurotransmitter, any chemical substance that is capable of transmitting (or inhibiting the transmission of) a nerve impulse from a neuron to another cell.
2 Q8VHN2 (/IDA) Q9R1M7 (/IDA)
Ionotropic glutamate receptor activity GO:0004970
Catalysis of the transmembrane transfer of an ion by a channel that opens when glutamate has been bound by the channel complex or one of its constituent parts.
1 Q9R1M7 (/IDA)
Ionotropic glutamate receptor activity GO:0004970
Catalysis of the transmembrane transfer of an ion by a channel that opens when glutamate has been bound by the channel complex or one of its constituent parts.
1 Q9R1M7 (/TAS)
NMDA glutamate receptor activity GO:0004972
An cation channel that opens in response to binding by extracellular glutmate, but only if glycine is also bound and the membrane is depolarized. Voltage gating is indirect, due to ejection of bound magnesium from the pore at permissive voltages.
1 Q9R1M7 (/TAS)
Cation channel activity GO:0005261
Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
1 Q8VHN2 (/IDA)
Cation channel activity GO:0005261
Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
1 Q91ZU9 (/ISO)
Cation channel activity GO:0005261
Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
1 O60391 (/ISS)
Glycine binding GO:0016594
Interacting selectively and non-covalently with glycine, aminoethanoic acid.
1 O60391 (/ISS)
Neurotransmitter receptor activity GO:0030594
Combining with a neurotransmitter and transmitting the signal to initiate a change in cell activity.
1 Q8VHN2 (/IDA)
Neurotransmitter receptor activity GO:0030594
Combining with a neurotransmitter and transmitting the signal to initiate a change in cell activity.
1 Q91ZU9 (/ISO)
Neurotransmitter receptor activity GO:0030594
Combining with a neurotransmitter and transmitting the signal to initiate a change in cell activity.
1 O60391 (/ISS)
Neurotransmitter binding GO:0042165
Interacting selectively and non-covalently with a neurotransmitter, any chemical substance that is capable of transmitting (or inhibiting the transmission of) a nerve impulse from a neuron to another cell.
1 O60391 (/ISS)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
1 Q8TCU5 (/IPI)
Protein phosphatase 2A binding GO:0051721
Interacting selectively and non-covalently with the enzyme protein phosphatase 2A.
1 Q9R1M7 (/IDA)
Protein phosphatase 2A binding GO:0051721
Interacting selectively and non-covalently with the enzyme protein phosphatase 2A.
1 Q8TCU5 (/ISS)

There are 19 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
Ionotropic glutamate receptor signaling pathway GO:0035235
A series of molecular signals initiated by glutamate binding to a glutamate receptor on the surface of the target cell, followed by the movement of ions through a channel in the receptor complex. Ends with regulation of a downstream cellular process, e.g. transcription.
4 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO) Q91ZU9 (/ISO)
Calcium ion transport GO:0006816
The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
3 A2AIR4 (/IMP) A2AIR5 (/IMP) Q69Z52 (/IMP)
Calcium ion transport GO:0006816
The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Dendrite development GO:0016358
The process whose specific outcome is the progression of the dendrite over time, from its formation to the mature structure.
3 A2AIR4 (/IMP) A2AIR5 (/IMP) Q69Z52 (/IMP)
Response to ethanol GO:0045471
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 an ethanol stimulus.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Rhythmic process GO:0048511
Any process pertinent to the generation and maintenance of rhythms in the physiology of an organism.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Prepulse inhibition GO:0060134
The process in which a startle magnitude is reduced when the startling stimulus is preceded by a low-intensity prepulse.
3 A2AIR4 (/IMP) A2AIR5 (/IMP) Q69Z52 (/IMP)
Regulation of synaptic vesicle exocytosis GO:2000300
Any process that modulates the frequency, rate or extent of synaptic vesicle exocytosis.
3 A2AIR4 (/IDA) A2AIR5 (/IDA) Q69Z52 (/IDA)
Regulation of synaptic vesicle exocytosis GO:2000300
Any process that modulates the frequency, rate or extent of synaptic vesicle exocytosis.
3 A2AIR4 (/IMP) A2AIR5 (/IMP) Q69Z52 (/IMP)
Ionotropic glutamate receptor signaling pathway GO:0035235
A series of molecular signals initiated by glutamate binding to a glutamate receptor on the surface of the target cell, followed by the movement of ions through a channel in the receptor complex. Ends with regulation of a downstream cellular process, e.g. transcription.
2 Q8VHN2 (/IDA) Q9R1M7 (/IDA)
Calcium ion transport GO:0006816
The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
1 Q9R1M7 (/IDA)
Calcium ion transport GO:0006816
The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
1 Q8TCU5 (/ISS)
Ionotropic glutamate receptor signaling pathway GO:0035235
A series of molecular signals initiated by glutamate binding to a glutamate receptor on the surface of the target cell, followed by the movement of ions through a channel in the receptor complex. Ends with regulation of a downstream cellular process, e.g. transcription.
1 O60391 (/ISS)
Response to ethanol GO:0045471
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 an ethanol stimulus.
1 Q8TCU5 (/IDA)
Rhythmic process GO:0048511
Any process pertinent to the generation and maintenance of rhythms in the physiology of an organism.
1 Q9R1M7 (/IDA)
Protein insertion into membrane GO:0051205
The process that results in the incorporation of a protein into a biological membrane. Incorporation in this context means having some part or covalently attached group that is inserted into the the hydrophobic region of one or both bilayers.
1 Q91ZU9 (/IMP)
Protein insertion into membrane GO:0051205
The process that results in the incorporation of a protein into a biological membrane. Incorporation in this context means having some part or covalently attached group that is inserted into the the hydrophobic region of one or both bilayers.
1 O60391 (/ISS)
Regulation of calcium ion transport GO:0051924
Any process that modulates the frequency, rate or extent of the directed movement of calcium ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
1 Q91ZU9 (/IMP)
Regulation of calcium ion transport GO:0051924
Any process that modulates the frequency, rate or extent of the directed movement of calcium ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
1 O60391 (/ISS)

There are 25 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
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
5 A2AIR4 (/IDA) A2AIR5 (/IDA) Q69Z52 (/IDA) Q8TCU5 (/IDA) Q91ZU9 (/IDA)
NMDA selective glutamate receptor complex GO:0017146
An assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex. NMDA receptors are composed of assemblies of NR1 subunits (Figure 3) and NR2 subunits, which can be one of four separate gene products (NR2A-D). Expression of both subunits are required to form functional channels. The glutamate binding domain is formed at the junction of NR1 and NR2 subunits. NMDA receptors are permeable to calcium ions as well as being permeable to other ions. Thus NMDA receptor activation leads to a calcium influx into the post-synaptic cells, a signal thought to be crucial for the induction of NMDA-receptor dependent LTP and LTD.
4 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO) Q91ZU9 (/ISO)
Postsynaptic membrane GO:0045211
A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane.
4 A2AIR4 (/IDA) A2AIR5 (/IDA) Q69Z52 (/IDA) Q9R1M7 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
4 A2AIR4 (/IDA) A2AIR5 (/IDA) Q69Z52 (/IDA) Q9R1M7 (/IDA)
Integral component of postsynaptic density membrane GO:0099061
The component of the postsynaptic density 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.
4 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO) Q91ZU9 (/ISO)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
NMDA selective glutamate receptor complex GO:0017146
An assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex. NMDA receptors are composed of assemblies of NR1 subunits (Figure 3) and NR2 subunits, which can be one of four separate gene products (NR2A-D). Expression of both subunits are required to form functional channels. The glutamate binding domain is formed at the junction of NR1 and NR2 subunits. NMDA receptors are permeable to calcium ions as well as being permeable to other ions. Thus NMDA receptor activation leads to a calcium influx into the post-synaptic cells, a signal thought to be crucial for the induction of NMDA-receptor dependent LTP and LTD.
3 Q8TCU5 (/IDA) Q8VHN2 (/IDA) Q9R1M7 (/IDA)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
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.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Postsynaptic membrane GO:0045211
A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
3 A2AIR4 (/IMP) A2AIR5 (/IMP) Q69Z52 (/IMP)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
3 A2AIR4 (/ISO) A2AIR5 (/ISO) Q69Z52 (/ISO)
Integral component of postsynaptic density membrane GO:0099061
The component of the postsynaptic density 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 Q8VHN2 (/IDA) Q9R1M7 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q8TCU5 (/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 Q8TCU5 (/NAS)
NMDA selective glutamate receptor complex GO:0017146
An assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex. NMDA receptors are composed of assemblies of NR1 subunits (Figure 3) and NR2 subunits, which can be one of four separate gene products (NR2A-D). Expression of both subunits are required to form functional channels. The glutamate binding domain is formed at the junction of NR1 and NR2 subunits. NMDA receptors are permeable to calcium ions as well as being permeable to other ions. Thus NMDA receptor activation leads to a calcium influx into the post-synaptic cells, a signal thought to be crucial for the induction of NMDA-receptor dependent LTP and LTD.
1 Q91ZU9 (/IMP)
NMDA selective glutamate receptor complex GO:0017146
An assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex. NMDA receptors are composed of assemblies of NR1 subunits (Figure 3) and NR2 subunits, which can be one of four separate gene products (NR2A-D). Expression of both subunits are required to form functional channels. The glutamate binding domain is formed at the junction of NR1 and NR2 subunits. NMDA receptors are permeable to calcium ions as well as being permeable to other ions. Thus NMDA receptor activation leads to a calcium influx into the post-synaptic cells, a signal thought to be crucial for the induction of NMDA-receptor dependent LTP and LTD.
1 O60391 (/ISS)
NMDA selective glutamate receptor complex GO:0017146
An assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex. NMDA receptors are composed of assemblies of NR1 subunits (Figure 3) and NR2 subunits, which can be one of four separate gene products (NR2A-D). Expression of both subunits are required to form functional channels. The glutamate binding domain is formed at the junction of NR1 and NR2 subunits. NMDA receptors are permeable to calcium ions as well as being permeable to other ions. Thus NMDA receptor activation leads to a calcium influx into the post-synaptic cells, a signal thought to be crucial for the induction of NMDA-receptor dependent LTP and LTD.
1 O60391 (/NAS)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 Q8TCU5 (/IDA)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 Q91ZU9 (/IMP)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 O60391 (/ISS)
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 Q8TCU5 (/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 Q8VHN2 (/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 Q91ZU9 (/ISO)