Ready-to-use ELISA kits are available for the detection of guanine nucleotide binding protein, alpha q polypeptide, an alias of the protein, G protein subunit alpha q. The official gene symbol is GNAQ. The protein, with a mass of 42.1 kDa and length of 359 residues, is reported to be nuclear. It is a member of the G-alpha family, G(q) subfamily and may be known by other names, including: SWS, G-ALPHA-q, guanine nucleotide-binding protein alpha-q, guanine nucleotide binding protein (G protein) q polypeptide.