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.,
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.
Brain,Cerebellum,Kidney,Lung,Mammary gland,Testis,
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