Description_x000D_ General description_x000D_ Matrix metalloproteinase-3 (MMP-3) is also known as stromelysin 1 and the gene encoding it is localized on human chromosome 11q22.3._x000D_ Specificity_x000D_ Reacts with reduced and to a lesser extent non-reduced MMP-3. The propeptide is shed after activation; therefore, the antibody recognizes the pro-form of MMP-3 and not the active forms. May be used to distinguish the latent from the active form of MMP-3. Recognizes Stromelysin-1 and Stromelysin-2, but not Stromelysin-3 or other MMP family members._x000D_ Immunogen_x000D_ synthetic peptide corresponding to the propeptide region of human matrix metalloproteinase-3 (stromelysin-1)._x000D_ Physical form_x000D_ Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 50% glycerol and 15 mM sodium azide._x000D_ Biochem/physiol Actions_x000D_ Matrix metalloproteinase-3 (MMP-3) plays an important role in cartilage degradation. It can act on a large number of substrates like type II, III, IV, IX and X collagens, laminin and fibronectin. MMP-3 can also activate other matrix metalloproteinases like MMP-1,-2 and -13. It has been associated with rheumatoid arthritis.