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:

"
Rhodopsin 7-helix transmembrane proteins
".

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 162: Muscarinic acetylcholine receptor

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
Phosphatidylinositol phospholipase C activity GO:0004435
Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H(2)O = 1,2-diacylglycerol + 1D-myo-inositol 1,4,5-trisphosphate + H(+).
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
G protein-coupled acetylcholine receptor activity GO:0016907
Combining with acetylcholine and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex.
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
G protein-coupled acetylcholine receptor activity GO:0016907
Combining with acetylcholine and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex.
1 P08482 (/IDA)
G protein-coupled acetylcholine receptor activity GO:0016907
Combining with acetylcholine and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex.
1 P12657 (/ISO)
Neurotransmitter receptor activity involved in regulation of postsynaptic membrane potential GO:0099529
Neurotransmitter receptor activity occurring in the postsynaptic membrane that is involved in regulating postsynaptic membrane potential, either directly (ionotropic receptors) or indirectly (e.g. via GPCR activation of an ion channel.)
1 P12657 (/EXP)
Neurotransmitter receptor activity involved in regulation of postsynaptic membrane potential GO:0099529
Neurotransmitter receptor activity occurring in the postsynaptic membrane that is involved in regulating postsynaptic membrane potential, either directly (ionotropic receptors) or indirectly (e.g. via GPCR activation of an ion channel.)
1 P12657 (/IDA)
Neurotransmitter receptor activity involved in regulation of postsynaptic membrane potential GO:0099529
Neurotransmitter receptor activity occurring in the postsynaptic membrane that is involved in regulating postsynaptic membrane potential, either directly (ionotropic receptors) or indirectly (e.g. via GPCR activation of an ion channel.)
1 P12657 (/IMP)

There are 22 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
G protein-coupled acetylcholine receptor signaling pathway GO:0007213
Any series of molecular signals initiated by an acetylcholine receptor on the surface of the target cell binding to one of its physiological ligands, and proceeding with the activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction and ends with regulation of a downstream cellular process, e.g. transcription.
61 A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A0D9SCU6 (/ISS) D2HS68 (/ISS) D2HS68 (/ISS) D2HS68 (/ISS)
(51 more)
Phototransduction, visible light GO:0007603
The sequence of reactions within a cell required to convert absorbed photons from visible light into a molecular signal. A visible light stimulus is electromagnetic radiation that can be perceived visually by an organism; for organisms lacking a visual system, this can be defined as light with a wavelength within the range 380 to 780 nm.
61 A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A0D9SCU6 (/ISS) D2HS68 (/ISS) D2HS68 (/ISS) D2HS68 (/ISS)
(51 more)
Entrainment of circadian clock GO:0009649
The synchronization of a circadian rhythm to environmental time cues such as light.
61 A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A096NB06 (/ISS) A0A0D9SCU6 (/ISS) D2HS68 (/ISS) D2HS68 (/ISS) D2HS68 (/ISS)
(51 more)
Signal transduction GO:0007165
The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
G protein-coupled receptor signaling pathway GO:0007186
A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
Protein kinase C-activating G protein-coupled receptor signaling pathway GO:0007205
The series of molecular signals generated as a consequence of a G protein-coupled receptor binding to its physiological ligand, where the pathway proceeds with activation of protein kinase C (PKC). PKC is activated by second messengers including diacylglycerol (DAG).
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
Phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway GO:0007207
The series of molecular signals generated as a consequence of a G protein-coupled acetylcholine receptor binding to its physiological ligand, where the pathway proceeds with activation of phospholipase C (PLC) and a subsequent release of inositol trisphosphate (IP3) and diacylglycerol (DAG).
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
G protein-coupled acetylcholine receptor signaling pathway GO:0007213
Any series of molecular signals initiated by an acetylcholine receptor on the surface of the target cell binding to one of its physiological ligands, and proceeding with the activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction and ends with regulation of a downstream cellular process, e.g. transcription.
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
Nervous system development GO:0007399
The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
Positive regulation of ion transport GO:0043270
Any process that activates or increases the frequency, rate or extent of the directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
9 P11229 (/IGI) P11229 (/IGI) P11229 (/IGI) P11229 (/IGI) P11229 (/IGI) P11229 (/IGI) P11229 (/IGI) P11229 (/IGI) P11229 (/IGI)
Regulation of glial cell proliferation GO:0060251
Any process that modulates the frequency, rate or extent of glial cell proliferation.
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
G protein-coupled acetylcholine receptor signaling pathway GO:0007213
Any series of molecular signals initiated by an acetylcholine receptor on the surface of the target cell binding to one of its physiological ligands, and proceeding with the activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction and ends with regulation of a downstream cellular process, e.g. transcription.
1 P08482 (/IDA)
G protein-coupled acetylcholine receptor signaling pathway GO:0007213
Any series of molecular signals initiated by an acetylcholine receptor on the surface of the target cell binding to one of its physiological ligands, and proceeding with the activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction and ends with regulation of a downstream cellular process, e.g. transcription.
1 P04761 (/IMP)
G protein-coupled acetylcholine receptor signaling pathway GO:0007213
Any series of molecular signals initiated by an acetylcholine receptor on the surface of the target cell binding to one of its physiological ligands, and proceeding with the activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction and ends with regulation of a downstream cellular process, e.g. transcription.
1 P12657 (/ISO)
Neuromuscular synaptic transmission GO:0007274
The process of synaptic transmission from a neuron to a muscle, across a synapse.
1 P08482 (/IDA)
Neuromuscular synaptic transmission GO:0007274
The process of synaptic transmission from a neuron to a muscle, across a synapse.
1 P12657 (/ISO)
Phototransduction, visible light GO:0007603
The sequence of reactions within a cell required to convert absorbed photons from visible light into a molecular signal. A visible light stimulus is electromagnetic radiation that can be perceived visually by an organism; for organisms lacking a visual system, this can be defined as light with a wavelength within the range 380 to 780 nm.
1 P04761 (/IMP)
Entrainment of circadian clock GO:0009649
The synchronization of a circadian rhythm to environmental time cues such as light.
1 P04761 (/IMP)
Regulation of locomotion GO:0040012
Any process that modulates the frequency, rate or extent of locomotion of a cell or organism.
1 P12657 (/IMP)
Positive regulation of ion transport GO:0043270
Any process that activates or increases the frequency, rate or extent of the directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
1 P12657 (/ISO)
Positive regulation of intracellular protein transport GO:0090316
Any process that activates or increases the frequency, rate or extent of the directed movement of proteins within cells.
1 P08482 (/IDA)
Positive regulation of intracellular protein transport GO:0090316
Any process that activates or increases the frequency, rate or extent of the directed movement of proteins within cells.
1 P12657 (/ISO)

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
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.
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/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.
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
9 P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS) P11229 (/TAS)
Postsynaptic density GO:0014069
An electron dense network of proteins within and adjacent to the postsynaptic membrane of an asymmetric, neuron-neuron synapse. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
1 P08482 (/IDA)
Postsynaptic density GO:0014069
An electron dense network of proteins within and adjacent to the postsynaptic membrane of an asymmetric, neuron-neuron synapse. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
1 P12657 (/ISO)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 P08482 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 P12657 (/ISO)
Dendrite GO:0030425
A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
1 P08482 (/IDA)
Dendrite GO:0030425
A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
1 P12657 (/ISO)
Asymmetric synapse GO:0032279
A type of synapse occurring between an axon and a dendritic spine or dendritic shaft. Asymmetric synapses, the most abundant synapse type in the central nervous system, involve axons that contain predominantly spherical vesicles and contain a thickened postsynaptic density. Most or all synapses of this type are excitatory.
1 P08482 (/IDA)
Asymmetric synapse GO:0032279
A type of synapse occurring between an axon and a dendritic spine or dendritic shaft. Asymmetric synapses, the most abundant synapse type in the central nervous system, involve axons that contain predominantly spherical vesicles and contain a thickened postsynaptic density. Most or all synapses of this type are excitatory.
1 P12657 (/ISO)
Axon terminus GO:0043679
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 button is a specialized region of it.
1 P08482 (/IDA)
Axon terminus GO:0043679
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 button is a specialized region of it.
1 P12657 (/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.
1 P08482 (/TAS)
Schaffer collateral - CA1 synapse GO:0098685
A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.
1 P12657 (/EXP)
Schaffer collateral - CA1 synapse GO:0098685
A synapse between the Schaffer collateral axon of a CA3 pyramidal cell and a CA1 pyramidal cell.
1 P12657 (/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 P12657 (/IMP)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 P08482 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 P12657 (/ISO)
Cholinergic synapse GO:0098981
A synapse that uses acetylcholine as a neurotransmitter.
1 P12657 (/IDA)
Integral component of postsynaptic membrane GO:0099055
The component of the postsynaptic 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 P12657 (/IDA)
Integral component of presynaptic membrane GO:0099056
The component of the presynaptic 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 P08482 (/IDA)
Integral component of presynaptic membrane GO:0099056
The component of the presynaptic 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 P12657 (/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.
1 P08482 (/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.
1 P12657 (/ISO)
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