The ELISA kits listed below target CHPF, the symbol for the human gene, chondroitin polymerizing factor, and a member of the Chondroitin N-acetylgalactosaminyltransferase family. The protein has an enzyme classification of glucuronosyl-N-acetylgalactosaminyl-proteoglycan 4-beta-N-acetylgalactosaminyltransferase. The protein encoded by CHPF has a predicted amino acid length of 775, a mass of 85.5 kDa, and a cytoplasmic and mitochondrial subcellular localization. There are currently 3 reported isoforms, as well as sites of glycosylation. CHPF may also be known by the following names: CHSY2, chondroitin glucuronyltransferase 2, N-acetylgalactosaminyltransferase 2, N-acetylgalactosaminyl-proteoglycan 3-beta-glucuronosyltransferase II, and chondroitin sulfate synthase 2. Orthologs of the gene, including human, mouse, rat, bovine, chicken, primate, guinea pig, and other mammalian are available targets of several ELISA kits.