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:

"
GI Alpha 1, domain 2-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.
« Back to all FunFams

FunFam 28: Guanine nucleotide-binding protein alpha-5 subunit

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 4 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).
2 Q04665 (/IPI) Q54R41 (/IPI)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
1 Q04665 (/IDA)
Adenylate cyclase activator activity GO:0010856
Increases the activity of the enzyme that catalyzes the reaction: ATP = 3',5'-cyclic AMP + diphosphate.
1 Q04665 (/IDA)
G protein-coupled glucose receptor activity GO:1990576
Combining with an extracellular glucose molecule 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 Q04665 (/IPI)

There are 16 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
Negative regulation of transcription by RNA polymerase II GO:0000122
Any process that stops, prevents, or reduces the frequency, rate or extent of transcription mediated by RNA polymerase II.
1 Q04665 (/IMP)
Carbon catabolite repression of transcription from RNA polymerase II promoter by glucose GO:0000433
A transcription regulation process in which the presence of glucose leads to a decrease in the frequency, rate, or extent of transcription of specific RNA polymerase II-transcribed genes involved in the metabolism of other carbon sources. Carbon catabolite repression is a mechanism of genetic regulation which the accumulation of catabolites of one substance in the cell represses the formation of enzymes that contribute to the catabolism of other substances.
1 Q04665 (/IMP)
Adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway GO:0007193
The series of molecular signals generated as a consequence of a G protein-coupled receptor binding to its physiological ligand, where the pathway proceeds through inhibition of adenylyl cyclase activity and a subsequent decrease in the concentration of cyclic AMP (cAMP).
1 Q54R41 (/IDA)
Negative regulation of induction of conjugation with cellular fusion GO:0010515
Any process that stops, prevents, or reduces the frequency or rate of initiation of conjugation with cellular fusion.
1 Q04665 (/IMP)
Adenylate cyclase-activating glucose-activated G protein-coupled receptor signaling pathway GO:0010619
The series of molecular signals generated as a consequence of glucose binding to a G protein-coupled receptor, where the pathway proceeds with activation of adenylyl cyclase and a subsequent increase in the concentration of cyclic AMP (cAMP).
1 Q04665 (/IMP)
Negative regulation of cGMP-mediated signaling GO:0010754
Any process that decreases the rate, frequency or extent of cGMP-mediated signaling. cGMP-mediated signaling is a series of molecular signals in which a cell uses cyclic GMP to convert an extracellular signal into a response.
1 Q54R41 (/IMP)
Negative regulation of phosphatidylinositol 3-kinase signaling GO:0014067
Any process that stops, prevents, or reduces the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade.
1 Q54R41 (/IMP)
Negative regulation of cell growth GO:0030308
Any process that stops, prevents, or reduces the frequency, rate, extent or direction of cell growth.
1 Q54R41 (/IMP)
Regulation of aggregate size involved in sorocarp development GO:0031157
Any process that modulates the size of the aggregate formed during sorocarp formation.
1 Q54R41 (/IMP)
Negative regulation of G protein-coupled receptor signaling pathway GO:0045744
Any process that stops, prevents, or reduces the frequency, rate or extent of G protein-coupled receptor signaling pathway.
1 Q54R41 (/IMP)
Negative regulation of developmental process GO:0051093
Any process that stops, prevents or reduces the rate or extent of development, the biological process whose specific outcome is the progression of an organism over time from an initial condition (e.g. a zygote, or a young adult) to a later condition (e.g. a multicellular animal or an aged adult).
1 Q54R41 (/TAS)
Negative regulation of positive chemotaxis to cAMP GO:0061123
Any process that decreases the rate, frequency, or extent of directed movement of a motile cell or organism up a concentration gradient of 3',5'-cAMP.
1 Q54R41 (/IMP)
Negative regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway GO:0106072
Any process that stops, prevents or reduces the frequency, rate or extent of an adenylate cyclase-activating G protein-coupled receptor signaling pathway.
1 Q54R41 (/IMP)
Negative regulation of protein localization to plasma membrane GO:1903077
Any process that stops, prevents or reduces the frequency, rate or extent of protein localization to plasma membrane.
1 Q54R41 (/IMP)
Negative regulation of asexual reproduction GO:1903665
Any process that stops, prevents or reduces the frequency, rate or extent of asexual reproduction.
1 Q54R41 (/IMP)
Signal transduction involved in regulation of aerobic respiration GO:1903759
Any signal transduction that is involved in regulation of aerobic respiration.
1 Q04665 (/IMP)

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
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 Q04665 (/HDA)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
1 Q04665 (/HDA)
Heterotrimeric G-protein complex GO:0005834
Any of a family of heterotrimeric GTP-binding and hydrolyzing proteins; they belong to a superfamily of GTPases that includes monomeric proteins such as EF-Tu and RAS. Heterotrimeric G-proteins consist of three subunits; the alpha subunit contains the guanine nucleotide binding site and possesses GTPase activity; the beta and gamma subunits are tightly associated and function as a beta-gamma heterodimer; extrinsic plasma membrane proteins (cytoplasmic face) that function as a complex to transduce signals from G protein-coupled receptors to an effector protein.
1 Q04665 (/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 Q54R41 (/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 Q54R41 (/TAS)
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 Q20701 (/IDA)
Cell division site GO:0032153
The eventual plane of cell division (also known as cell cleavage or cytokinesis) in a dividing cell. In Eukaryotes, the cleavage apparatus, composed of septin structures and the actomyosin contractile ring, forms along this plane, and the mitotic, or meiotic, spindle is aligned perpendicular to the division plane. In bacteria, the cell division site is generally located at mid-cell and is the site at which the cytoskeletal structure, the Z-ring, assembles.
1 Q04665 (/HDA)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 Q20701 (/IDA)
Mitotic spindle pole body GO:0044732
The microtubule organizing center that forms as part of the mitotic cell cycle; functionally homologous to the animal cell centrosome.
1 Q04665 (/HDA)
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 Q20701 (/IDA)