The ELISA kits listed below target C3, the symbol for the human gene, complement C3. The protein encoded by C3 has a predicted amino acid length of 1663, a mass of 187.1 kDa, and a secreted subcellular localization. Glycosylation has been reported. Pathologic involvement is reported in Complement component 3 deficiency. C3 may also be known by the following names: epididymis secretory sperm binding protein Li 62p, complement component C3b, complement component 3, acylation-stimulating protein cleavage product, C3a anaphylatoxin, C3 PZP-like alpha-2-macroglobulin domain-containing protein 1, and AHUS5. Orthologs of the gene, including human, mouse, rat, bovine, chicken, primate, guinea pig, fish, plant, and other mammalian are available targets of several ELISA kits.