Matrix metalloproteinase-9, MMP-9, 92 kDa gelatinase, Gelatinase B, GELB, MMP9, CLG4B.
Matrix metalloproteinase-9, MMP-9, 92 kDa gelatinase, Gelatinase B, GELB, MMP9, CLG4B.
MMP-9 is synthesized as an inactive proenzyme (proMMP-9) and requires activation to become functional. The activation process involves the cleavage of the propeptide domain, which exposes the active site of the enzyme. This activation can be mediated by various proteases, including Cathepsin K . The active form of MMP-9 has a molecular weight of approximately 93 kDa .
MMP-9 is produced by a variety of cell types, including monocytes, macrophages, neutrophils, keratinocytes, fibroblasts, osteoclasts, and endothelial cells . It is involved in several physiological and pathological processes, such as:
Recombinant human MMP-9 is produced using various expression systems, such as Chinese Hamster Ovary (CHO) cells . The recombinant protein is often supplied in a buffered aqueous solution containing Tris-HCl, calcium chloride, sodium chloride, and Brij-35 . It is typically purified to a high degree of purity (>90%) and is used in various research applications, including studies on ECM degradation, cancer biology, and inflammatory diseases .
Recombinant MMP-9 is widely used in biochemical and physiological studies to understand its role in various biological processes. Some of the key applications include: