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 182: gastrin/cholecystokinin type B 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 12 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
Gastrin receptor activity GO:0015054
Combining with gastrin and transmitting the signal across the membrane by activating an associated G-protein to initiate a change in cell activity.
7 P30552 (/ISS) P30553 (/ISS) P30796 (/ISS) P46627 (/ISS) P56481 (/ISS) P56481 (/ISS) P79266 (/ISS)
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).
3 P32239 (/IPI) P56481 (/IPI) P56481 (/IPI)
Cholecystokinin receptor activity GO:0004951
Combining with cholecystokinin and transmitting the signal across the membrane by activating an associated G-protein to initiate a change in cell activity. Cholecystokinin can act as a neuropeptide or as a gastrointestinal hormone.
2 P56481 (/ISO) P56481 (/ISO)
Gastrin receptor activity GO:0015054
Combining with gastrin and transmitting the signal across the membrane by activating an associated G-protein to initiate a change in cell activity.
2 P56481 (/ISO) P56481 (/ISO)
Peptide hormone binding GO:0017046
Interacting selectively and non-covalently with any peptide with hormonal activity in animals.
2 P56481 (/ISO) P56481 (/ISO)
Type B gastrin/cholecystokinin receptor binding GO:0031741
Interacting selectively and non-covalently with a type B gastrin/cholecystokinin receptor.
2 P56481 (/ISO) P56481 (/ISO)
Cholecystokinin receptor activity GO:0004951
Combining with cholecystokinin and transmitting the signal across the membrane by activating an associated G-protein to initiate a change in cell activity. Cholecystokinin can act as a neuropeptide or as a gastrointestinal hormone.
1 P32239 (/IDA)
Gastrin receptor activity GO:0015054
Combining with gastrin and transmitting the signal across the membrane by activating an associated G-protein to initiate a change in cell activity.
1 P32239 (/IDA)
Gastrin receptor activity GO:0015054
Combining with gastrin and transmitting the signal across the membrane by activating an associated G-protein to initiate a change in cell activity.
1 P30553 (/IMP)
Peptide hormone binding GO:0017046
Interacting selectively and non-covalently with any peptide with hormonal activity in animals.
1 P32239 (/IPI)
Type B gastrin/cholecystokinin receptor binding GO:0031741
Interacting selectively and non-covalently with a type B gastrin/cholecystokinin receptor.
1 P32239 (/IDA)
1-phosphatidylinositol-3-kinase regulator activity GO:0046935
Modulates the activity of the enzyme 1-phosphatidylinositol-3-kinase activity.
1 P32239 (/TAS)

There are 43 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
Positive regulation of cytosolic calcium ion concentration GO:0007204
Any process that increases the concentration of calcium ions in the cytosol.
7 P30552 (/ISS) P30553 (/ISS) P30796 (/ISS) P46627 (/ISS) P56481 (/ISS) P56481 (/ISS) P79266 (/ISS)
Positive regulation of cell population proliferation GO:0008284
Any process that activates or increases the rate or extent of cell proliferation.
7 P30552 (/ISS) P30553 (/ISS) P30796 (/ISS) P46627 (/ISS) P56481 (/ISS) P56481 (/ISS) P79266 (/ISS)
Gastric acid secretion GO:0001696
The regulated release of gastric acid (hydrochloric acid) by parietal or oxyntic cells during digestion.
2 P56481 (/IGI) P56481 (/IGI)
Gastric acid secretion GO:0001696
The regulated release of gastric acid (hydrochloric acid) by parietal or oxyntic cells during digestion.
2 P56481 (/IMP) P56481 (/IMP)
Histamine secretion GO:0001821
The regulated release of histamine by a cell or tissue. It is formed by decarboxylation of histidine and it acts through receptors in smooth muscle and in secretory systems.
2 P56481 (/ISO) P56481 (/ISO)
Behavioral defense response GO:0002209
A behavioral response seeking to protect an organism from an a perceived external threat to that organism.
2 P56481 (/ISO) P56481 (/ISO)
Apoptotic process GO:0006915
A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
2 P56481 (/ISO) P56481 (/ISO)
Phospholipase C-activating G protein-coupled receptor signaling pathway GO:0007200
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 phospholipase C (PLC) and a subsequent increase in the concentration of inositol trisphosphate (IP3) and diacylglycerol (DAG).
2 P56481 (/ISO) P56481 (/ISO)
Positive regulation of cytosolic calcium ion concentration GO:0007204
Any process that increases the concentration of calcium ions in the cytosol.
2 P56481 (/ISO) P56481 (/ISO)
Positive regulation of cell population proliferation GO:0008284
Any process that activates or increases the rate or extent of cell proliferation.
2 P56481 (/ISO) P56481 (/ISO)
Positive regulation of synaptic transmission, GABAergic GO:0032230
Any process that activates, maintains or increases the frequency, rate or extent of GABAergic synaptic transmission, the process of communication from a neuron to another neuron across a synapse using the neurotransmitter gamma-aminobutyric acid (GABA).
2 P56481 (/ISO) P56481 (/ISO)
Cholecystokinin signaling pathway GO:0038188
The series of molecular signals generated as a consequence of cholecystokinin binding to a receptor on the surface of the cell, and proceeding with the activated receptor transmitting the signal to a heterotrimeric G-protein complex to initiate a change in cell activity. Ends with regulation of a downstream cellular process, e.g. transcription.
2 P56481 (/ISO) P56481 (/ISO)
Estrous cycle GO:0044849
A type of ovulation cycle, which occurs in most mammalian therian females, where the endometrium is resorbed if pregnancy does not occur.
2 P56481 (/ISO) P56481 (/ISO)
PH reduction GO:0045851
Any process that reduces the internal pH of an organism, part of an organism or a cell, measured by the concentration of the hydrogen ion.
2 P56481 (/IMP) P56481 (/IMP)
Digestive tract development GO:0048565
The process whose specific outcome is the progression of the digestive tract over time, from its formation to the mature structure. The digestive tract is the anatomical structure through which food passes and is processed.
2 P56481 (/IMP) P56481 (/IMP)
Gland development GO:0048732
The process whose specific outcome is the progression of a gland over time, from its formation to the mature structure. A gland is an organ specialised for secretion.
2 P56481 (/IMP) P56481 (/IMP)
Positive regulation of synaptic transmission GO:0050806
Any process that activates or increases the frequency, rate or extent of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse.
2 P56481 (/ISO) P56481 (/ISO)
Regulation of sensory perception of pain GO:0051930
Any process that modulates the frequency, rate or extent of the sensory perception of pain, the series of events required for an organism to receive a painful stimulus, convert it to a molecular signal, and recognize and characterize the signal.
2 P56481 (/ISO) P56481 (/ISO)
Positive regulation of synaptic transmission, glutamatergic GO:0051968
Any process that activates, maintains or increases the frequency, rate or extent of glutamatergic synaptic transmission, the process of communication from a neuron to another neuron across a synapse using the neurotransmitter glutamate.
2 P56481 (/ISO) P56481 (/ISO)
ERK1 and ERK2 cascade GO:0070371
An intracellular protein kinase cascade containing at least ERK1 or ERK2 (MAPKs), a MEK (a MAPKK) and a MAP3K. The cascade may involve 4 different kinases, as it can also contain an additional tier: the upstream MAP4K. The kinases in each tier phosphorylate and activate the kinase in the downstream tier to transmit a signal within a cell.
2 P56481 (/ISO) P56481 (/ISO)
Positive regulation of somatostatin secretion GO:0090274
Any process that increases the rate, frequency, extent of the regulated release of somatostatin from secretory granules in the D cells of the pancreas.
2 P56481 (/ISO) P56481 (/ISO)
Positive regulation of behavioral fear response GO:2000987
Any process that activates or increases the frequency, rate or extent of behavioral fear response.
2 P56481 (/ISO) P56481 (/ISO)
Histamine secretion GO:0001821
The regulated release of histamine by a cell or tissue. It is formed by decarboxylation of histidine and it acts through receptors in smooth muscle and in secretory systems.
1 P30553 (/IMP)
Behavioral defense response GO:0002209
A behavioral response seeking to protect an organism from an a perceived external threat to that organism.
1 P30553 (/IMP)
Apoptotic process GO:0006915
A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
1 P30553 (/IMP)
Cell surface receptor signaling pathway GO:0007166
A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
1 P32239 (/NAS)
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).
1 P32239 (/TAS)
Phospholipase C-activating G protein-coupled receptor signaling pathway GO:0007200
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 phospholipase C (PLC) and a subsequent increase in the concentration of inositol trisphosphate (IP3) and diacylglycerol (DAG).
1 P32239 (/IDA)
Phospholipase C-activating G protein-coupled receptor signaling pathway GO:0007200
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 phospholipase C (PLC) and a subsequent increase in the concentration of inositol trisphosphate (IP3) and diacylglycerol (DAG).
1 P32239 (/TAS)
Positive regulation of cytosolic calcium ion concentration GO:0007204
Any process that increases the concentration of calcium ions in the cytosol.
1 P32239 (/IDA)
Digestion GO:0007586
The whole of the physical, chemical, and biochemical processes carried out by multicellular organisms to break down ingested nutrients into components that may be easily absorbed and directed into metabolism.
1 P30553 (/IEP)
Positive regulation of cell population proliferation GO:0008284
Any process that activates or increases the rate or extent of cell proliferation.
1 P32239 (/IDA)
Positive regulation of cell population proliferation GO:0008284
Any process that activates or increases the rate or extent of cell proliferation.
1 P30553 (/IMP)
Positive regulation of synaptic transmission, GABAergic GO:0032230
Any process that activates, maintains or increases the frequency, rate or extent of GABAergic synaptic transmission, the process of communication from a neuron to another neuron across a synapse using the neurotransmitter gamma-aminobutyric acid (GABA).
1 P30553 (/IMP)
Response to insulin GO:0032868
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 insulin stimulus. Insulin is a polypeptide hormone produced by the islets of Langerhans of the pancreas in mammals, and by the homologous organs of other organisms.
1 P30553 (/IEP)
Cholecystokinin signaling pathway GO:0038188
The series of molecular signals generated as a consequence of cholecystokinin binding to a receptor on the surface of the cell, and proceeding with the activated receptor transmitting the signal to a heterotrimeric G-protein complex to initiate a change in cell activity. Ends with regulation of a downstream cellular process, e.g. transcription.
1 P32239 (/IDA)
Estrous cycle GO:0044849
A type of ovulation cycle, which occurs in most mammalian therian females, where the endometrium is resorbed if pregnancy does not occur.
1 P30553 (/IDA)
Positive regulation of synaptic transmission GO:0050806
Any process that activates or increases the frequency, rate or extent of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse.
1 P30553 (/IMP)
Regulation of sensory perception of pain GO:0051930
Any process that modulates the frequency, rate or extent of the sensory perception of pain, the series of events required for an organism to receive a painful stimulus, convert it to a molecular signal, and recognize and characterize the signal.
1 P30553 (/IMP)
Positive regulation of synaptic transmission, glutamatergic GO:0051968
Any process that activates, maintains or increases the frequency, rate or extent of glutamatergic synaptic transmission, the process of communication from a neuron to another neuron across a synapse using the neurotransmitter glutamate.
1 P30553 (/IMP)
ERK1 and ERK2 cascade GO:0070371
An intracellular protein kinase cascade containing at least ERK1 or ERK2 (MAPKs), a MEK (a MAPKK) and a MAP3K. The cascade may involve 4 different kinases, as it can also contain an additional tier: the upstream MAP4K. The kinases in each tier phosphorylate and activate the kinase in the downstream tier to transmit a signal within a cell.
1 P30553 (/IMP)
Positive regulation of somatostatin secretion GO:0090274
Any process that increases the rate, frequency, extent of the regulated release of somatostatin from secretory granules in the D cells of the pancreas.
1 P30553 (/IMP)
Positive regulation of behavioral fear response GO:2000987
Any process that activates or increases the frequency, rate or extent of behavioral fear response.
1 P30553 (/IMP)

There are 8 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
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
2 P56481 (/ISO) P56481 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 P56481 (/ISO) P56481 (/ISO)
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 P56481 (/ISO) P56481 (/ISO)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
2 P56481 (/IDA) P56481 (/IDA)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 P30553 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 P30553 (/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.
1 P30553 (/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.
1 P32239 (/TAS)