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Guanine nucleotide-binding protein subunit beta-4 is a protein that in humans is encoded by the GNB4gene.[1][2][3]
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.[3]
↑Ruiz-Velasco V, Ikeda SR, Puhl HL (Feb 2002). "Cloning, tissue distribution, and functional expression of the human G protein beta 4-subunit". Physiol Genomics. 8 (1): 41–50. doi:10.1152/physiolgenomics.00085.2001. PMID11842130.
Pietruck F, Moritz A, Montemurro M, et al. (1996). "Selectively enhanced cellular signaling by Gi proteins in essential hypertension. G alpha i2, G alpha i3, G beta 1, and G beta 2 are not mutated". Circ. Res. 79 (5): 974–83. doi:10.1161/01.res.79.5.974. PMID8888689.
Asano T, Morishita R, Ueda H, Kato K (1999). "Selective association of G protein beta(4) with gamma(5) and gamma(12) subunits in bovine tissues". J. Biol. Chem. 274 (30): 21425–9. doi:10.1074/jbc.274.30.21425. PMID10409705.
Huang L, Shanker YG, Dubauskaite J, et al. (2000). "Ggamma13 colocalizes with gustducin in taste receptor cells and mediates IP3 responses to bitter denatonium". Nat. Neurosci. 2 (12): 1055–62. doi:10.1038/15981. PMID10570481.
Evanko DS, Thiyagarajan MM, Siderovski DP, Wedegaertner PB (2001). "Gbeta gamma isoforms selectively rescue plasma membrane localization and palmitoylation of mutant Galphas and Galphaq". J. Biol. Chem. 276 (26): 23945–53. doi:10.1074/jbc.M101154200. PMID11294873.
Huang L, Max M, Margolskee RF, et al. (2003). "G protein subunit G gamma 13 is coexpressed with G alpha o, G beta 3, and G beta 4 in retinal ON bipolar cells". J. Comp. Neurol. 455 (1): 1–10. doi:10.1002/cne.10396. PMID12454992.
Cuello F, Schulze RA, Heemeyer F, et al. (2003). "Activation of heterotrimeric G proteins by a high energy phosphate transfer via nucleoside diphosphate kinase (NDPK) B and Gbeta subunits. Complex formation of NDPK B with Gbeta gamma dimers and phosphorylation of His-266 IN Gbeta". J. Biol. Chem. 278 (9): 7220–6. doi:10.1074/jbc.M210304200. PMID12486123.
Sprague RS, Bowles EA, Olearczyk JJ, et al. (2003). "The role of G protein beta subunits in the release of ATP from human erythrocytes". J. Physiol. Pharmacol. 53 (4 Pt 1): 667–74. PMID12512701.
Rosskopf D, Nikula C, Manthey I, et al. (2003). "The human G protein beta4 subunit: gene structure, expression, Ggamma and effector interaction". FEBS Lett. 544 (1–3): 27–32. doi:10.1016/S0014-5793(03)00441-1. PMID12782285.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.
