Anti-guanine nucleotide binding protein (G protein), beta polypeptide 2 antibodies enable researchers to detect and measure the guanine nucleotide binding protein (G protein), beta polypeptide 2 antigen in biological samples. This target is a reported synonym of the GNB2 gene, which encodes G protein subunit beta 2. This protein is known to function in GPCR signaling pathways, among other biological roles. The human version of guanine nucleotide binding protein (G protein), beta polypeptide 2 has a canonical amino acid length of 340 residues and a protein mass of 37.3 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane and cytoplasm of cells and widely expressed in many tissue types. Other names for this target antigen include HG2C1, SSS4, and SSS4; NEDHYDF.