ELISA kits for the study of the target, AOM are available in ready-to-use formats. The protein is also known as collagen type II alpha 1 chain or COL2A1. It is a 1487-residue protein with a secreted localization. In addition, up to 3 isoforms have been discovered. Other alias names for this target include: collagen type II alpha 1, collagen II alpha-1 polypeptide, cartilage collagen, alpha-1 type II collagen, and collagen alpha-1(II) chain, and AOM.