Ready-to-use ELISA kits are available for the detection of Galpha 13, an alias of the protein, G protein subunit alpha 13. The official gene symbol is GNA13. The protein, with a mass of 44.1 kDa and length of 377 residues, is reported to be cytoplasmic, nuclear and membrane-associated. It is a member of the G-alpha family, G(12) subfamily and may be known by other names, including: G13, guanine nucleotide binding protein (G protein) alpha 13, g alpha-13, and guanine nucleotide-binding protein subunit alpha-13.