Aliases for GNAT2 Gene
External Ids for GNAT2 Gene
Previous GeneCards Identifiers for GNAT2 Gene
Transducin is a 3-subunit guanine nucleotide-binding protein (G protein) which stimulates the coupling of rhodopsin and cGMP-phoshodiesterase during visual impulses. The transducin alpha subunits in rods and cones are encoded by separate genes. This gene encodes the alpha subunit in cones. [provided by RefSeq, Jul 2008]
GeneCards Summary for GNAT2 Gene
GNAT2 (Guanine Nucleotide Binding Protein (G Protein), Alpha Transducing Activity Polypeptide 2) is a Protein Coding gene. Diseases associated with GNAT2 include achromatopsia-4 and achromatopsia. 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 GNAT2 Gene
Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems. Transducin is an amplifier and one of the transducers of a visual impulse that performs the coupling between rhodopsin and cGMP-phosphodiesterase
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.