Description
Matrix metalloproteinases are members of a unique family of proteolytic enzymes that have a zinc ion at their active sites and can degrade collagens, elastin and other components of the extracellular matrix (ECM). These enzymes are present in normal healthy individuals and have been shown to have an important role in processes such as wound healing, pregnancy, and bone resorption. However, overexpression and activation of MMPs have been linked with a range of pathological processes and disease states involved in the breakdown and remodeling of the ECM. Such diseases include tumor invasion and metastasis, rheumatoid arthritis, periodontal disease and vascular processes such as angiogenesis, intimal hyperplasia, atherosclerosis and aneurysms. Recently, MMPs have been linked to neurodegenerative diseases such as Alzheimer's, and amyotrophic lateral sclerosis (ALS). Natural inhibitors of MMPs, tissue inhibitor of matrix metalloproteinases (TIMPs) exist and synthetic inhibitors have been developed which offer hope of new treatment options for these diseases.
Abbr
MMP-9, Recombinant (Human)
Applications
Immunoblotting (1 µg protein/lane) Substrate Cleavage Assay (1 µg protein/lane) Zymography (1 µg protein/lane)
Product Overview
Recombinant, human pro-MMP-9 expressed in CHO cells. A portion (less than 10%) of the enzyme may be seen as a naturally-occurring dimer. Dimerization does not interfere with activation. May contain up to 10% TIMP proteins. During storage, a small portion (less than 10%) of the enzyme may also become activated. Requires activation prior to use. A simple activation protocol is included.
Enzyme Commission Number
EC 3.4.24.35
Activity
>1,300 pmoles/min/µg
Unit Definition
Specific activity is determined using 10 μM (7-methoxycoumarin-4-yl) acetyl-Pro-Leu-Gly-Leu-(3-[2, 4-dinitrophenyl]-L-2, 3-diaminopropionyl)-Ala-Arg-NH₂ (excitation 320 nm, emission 405 nm), and 20 ng enzyme in 100 μl of 50 mM Tris-HCl, pH 7.5, 10 mM CaCl₂, 150 mM NaCl, and 0.05% BRIJ-35 Detergent at room temperature.
Storage
< -70°C; Avoid freeze/thaw
Buffer
In 150 mM NaCl, 50 mM Tris-HCl, 10 mM CaCl₂, 0.05% BRIJ-35 Detergent, pH 7.5.
Synonyms
Gelatinase B; EC 3.4.24.35; 92-kDa gelatinase; matrix metalloproteinase 9; type V collagenase; 92-kDa type IV collagenase; macrophage gelatinase; 95 kDa type IV collagenase/gelatinase; collagenase IV; collagenase type IV; gelatinase MMP 9; MMP 9; type IV collagen metalloproteinase
Download Datasheet