Guanine Nucleotide-Binding Protein G(I)/G(S)/G(T) Subunit Beta-3

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-3 (340 aa, ~37 kDa) is encoded by the human GNB3 gene. This protein plays a role in the mediation of G protein-coupled receptor signaling.

**Synonyms:** - G Protein, Beta-3 Subunit - GNB3 - GTP-Binding Regulatory Protein Beta-3 Chain - Guanine Nucleotide Binding Protein Beta 3 - Guanine Nucleotide-Binding Protein G(I)/G(S)/G(T) Beta Subunit 3 - Hypertension Associated Protein - Transducin Beta Chain 3