The protein encoded by this gene is an alpha subunit of guanine nucleotide binding proteins (G proteins). The encoded protein contains the guanine nucleotide binding site and is involved in the hormonal regulation of adenylate cyclase. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013],
show all
Function:
Function:Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems. The G(i) proteins are involved in hormonal regulation of adenylate cyclase: they inhibit the cyclase in response to beta-adrenergic stimuli.,similarity:Belongs to the G-alpha family. G(i/o/t/z) subfamily.,subunit:G proteins are composed of 3 units; alpha, beta and gamma. The alpha chain contains the guanine nucleotide binding site. Interacts with GPSM1 (By similarity). Interacts with UNC5B.,
show all
Cellular Localization:
Cytoplasm . Cytoplasm, cytoskeleton, microtubule organizing center, centrosome . Cell membrane . Membrane ; Lipid-anchor . Localizes in the centrosomes of interphase and mitotic cells. Detected at the cleavage furrow and/or the midbody.