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Protein Ontology Report - heterotrimeric G-protein complex

GO:0005834 -
Ontology Information
PRO ID GO:0005834 Show OBO stanza
PRO name heterotrimeric G-protein complex
Other: RELATED: heterotrimeric G-protein GTPase activity
Definition 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. [ISBN:0198547684]
Comment See also the molecular function term 'G protein-coupled receptor activity ; GO:0004930'.
PRO Category
Parent GO:0032991 protein-containing complex
Term Hierarchy Visualization DAG     OLS     Cytoscape