Aliases for GNAI3 Gene
External Ids for GNAI3 Gene
Previous GeneCards Identifiers for GNAI3 Gene
Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling pathways. G proteins are composed of 3 units: alpha, beta and gamma. This gene encodes an alpha subunit and belongs to the G-alpha family. Mutation in this gene, resulting in a gly40-to-arg substitution, is associated with auriculocondylar syndrome, and shown to affect downstream targets in the G protein-coupled endothelin receptor pathway. [provided by RefSeq, Jun 2012]
GeneCards Summary for GNAI3 Gene
GNAI3 (Guanine Nucleotide Binding Protein (G Protein), Alpha Inhibiting Activity Polypeptide 3) is a Protein Coding gene. Diseases associated with GNAI3 include auriculocondylar syndrome 1 and auriculo-condylar syndrome. Among its related pathways are GPCR Pathway and GPCR Pathway. GO annotations related to this gene include GTP binding and GTPase activity. An important paralog of this gene is GNAQ.
UniProtKB/Swiss-Prot for GNAI3 Gene
Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems. G(k) is the stimulatory G protein of receptor-regulated K(+) channels. The active GTP-bound form prevents the association of RGS14 with centrosomes and is required for the translocation of RGS14 from the cytoplasm to the plasma membrane. May play a role in cell division.
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-receptor binding results in detachment of the G protein, switching it to an 'on' state and permitting Galpha activation of second messenger signalling cascades. There are several types of Galpha proteins; Galphas and Galphai bind directly to adenylyl cyclase and stimulate or inhibit its activity, leading to an increase or decrease in cAMP levels respectively.