Anti-Galpha13 antibodies enable researchers to detect and measure the Galpha13 antigen in biological samples. This target is a reported synonym of the GNA13 gene, which encodes G protein subunit alpha 13. This protein is known to function in GPCR signaling pathways and cell differentiation, among other biological roles. The human version of Galpha13 has a canonical amino acid length of 377 residues and a protein mass of 44.1 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane, nucleus, and cytoplasm of cells and widely expressed in many tissue types. Other names for this target antigen include G13, HG1N, and guanine nucleotide-binding protein subunit alpha-13.