GNB1 Antibody – Rabbit Polyclonal

Heterotrimeric guanine nucleotide-binding proteins (G proteins), which integrate signals between receptors and effector proteins, are composed of an alpha, a beta, and a gamma subunit. These subunits are encoded by families of related genes. This gene encodes a beta subunit. Beta subunits are important regulators of alpha subunits, as well as of certain signal transduction receptors and effectors. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

G-beta 1: Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein- effector interaction. Belongs to the WD repeat G protein beta family.

Protein type: G protein, heterotrimeric beta; G protein, heterotrimeric; G protein

Chromosomal Location of Human Ortholog: 1p36.33

Cellular Component: cytosol; dendrite; heterotrimeric G-protein complex; intracellular; lysosomal membrane; membrane; myelin sheath; photoreceptor inner segment; plasma membrane

Molecular Function: GTPase activity; GTPase binding; protein binding; protein complex binding; signal transducer activity; spectrin binding; type 1 angiotensin receptor binding

Biological Process: acetylcholine receptor signaling, muscarinic pathway; cell proliferation; dopamine receptor, adenylate cyclase activating pathway; elevation of cytosolic calcium ion concentration; G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); platelet activation; protein folding; Ras protein signal transduction; retina development in camera-type eye; rhodopsin mediated signaling; sensory perception of taste; signal transduction; Wnt receptor signaling pathway, calcium modulating pathway