Probable G-protein coupled receptor 133 is a protein that in humans is encoded by the GPR133gene.
This gene encodes a member of the adhesion-GPCR family of receptors. Family members are characterized by an extended extracellular region with a variable number of protein domains coupled to a TM7 domain via a domain known as the GPCR-Autoproteolysis INducing (GAIN) domain.
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Bjarnadóttir TK, Fredriksson R, Höglund PJ et al. (2005). "The human and mouse repertoire of the adhesion family of G-protein-coupled receptors.". Genomics84 (1): 23–33. doi:10.1016/j.ygeno.2003.12.004. PMID15203201.CS1 maint: Explicit use of et al. (link)