Rat MMP-8 Antibody (400102)

Matrix metalloproteinases (MMPs) are a family of zinc and calcium dependent endopeptidases with the combined ability to degrade all the components of the extracellular matrix. MMP-8 (neutrophil collagenase, collagenase 2) is expressed in neutrophils, where it is stored in specific granules. MMP-8 release from the neutrophils is stimulated by various factors such as interleukins 1 and 8, TNF-alpha and GM-CSF. MMP-8 is capable of cleaving types I, II, and III triple-helical collagen, gelatin peptides, fibronectin, proteoglycans, aggrecan, serpins, beta -casein, and peptides such as angiotensin and substance P. In addition to its function in phagocytosis, MMP-8 has a high capacity for infiltrating connective tissue and is implicated in the breakdown of the extracellular matrix in diseases such as rheumatoid arthritis. Structurally, MMP-8 consists of several domains: a pro-domain that is cleaved upon activation, a catalytic domain containing the zinc-binding site, a short hinge region, and a hemopexin-like domain (1). The amino acid sequence of rat MMP-8 shares 91%, 75% and 73% identity with that of mouse, dog and human, respectively.