Listed are ELISA Kits for the detection of folylpolyglutamyl synthetase, an alias name of folylpolyglutamate synthase. The human protein, encoded by the gene FPGS, is 587 amino acid residues long and has a mass of 64,609 daltons. However, there are up to 4 reported isoforms. It is a member of the Folylpolyglutamate synthase family. This protein is reported to have a cytoplasmic and mitochondrial cellular localization. This target may also be known as: folylpolyglutamate synthase mitochondrial, folylpoly-gamma-glutamate synthetase, tetrahydrofolate synthase, and tetrahydrofolylpolyglutamate synthase.