Aliases for RGS4 Gene
External Ids for RGS4 Gene
Previous HGNC Symbols for RGS4 Gene
Previous GeneCards Identifiers for RGS4 Gene
Regulator of G protein signaling (RGS) family members are regulatory molecules that act as GTPase activating proteins (GAPs) for G alpha subunits of heterotrimeric G proteins. RGS proteins are able to deactivate G protein subunits of the Gi alpha, Go alpha and Gq alpha subtypes. They drive G proteins into their inactive GDP-bound forms. Regulator of G protein signaling 4 belongs to this family. All RGS proteins share a conserved 120-amino acid sequence termed the RGS domain. Regulator of G protein signaling 4 protein is 37% identical to RGS1 and 97% identical to rat Rgs4. This protein negatively regulate signaling upstream or at the level of the heterotrimeric G protein and is localized in the cytoplasm. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2008]
GeneCards Summary for RGS4 Gene
RGS4 (Regulator Of G-Protein Signaling 4) is a Protein Coding gene. Diseases associated with RGS4 include schizophrenia and psychotic disorder. Among its related pathways are Signaling by GPCR and Peptide ligand-binding receptors. GO annotations related to this gene include GTPase activator activity and G-protein alpha-subunit binding. An important paralog of this gene is RGS18.
UniProtKB/Swiss-Prot for RGS4 Gene
Inhibits signal transduction by increasing the GTPase activity of G protein alpha subunits thereby driving them into their inactive GDP-bound form. Activity on G(z)-alpha is inhibited by phosphorylation of the G-protein. Activity on G(z)-alpha and G(i)-alpha-1 is inhibited by palmitoylation of the G-protein.
Heterotrimeric G proteins are membrane bound GTPases that are linked to 7-TM receptors. Each G protein contains an alpha-, beta- and gamma-subunit and is bound to GDP in the 'off' state. Ligand binding causes a receptor conformational change, detaching the G protein and switching it 'on'.