Description
Key facts
Detection method:Colorimetric,
Sample types:Inhibitor compounds,
Assay type:Enzyme activity,
Assay Platform:Microplate reader
Product details:
MMP9 Inhibitor Screening Assay Kit (Colorimetric) (ab139448) is a complete assay system designed to screen MMP9 inhibitors using a thiopeptide as a chromogenic substrate (Ac-PLG-[2-mercapto-4-methyl-pentanoyl]-LG-OC
). The MMP cleavage site peptide bond is replaced by a thioester bond in the thiopeptide. Hydrolysis of this bond by an MMP produces a sulfhydryl group, which reacts with DTNB [5,5'-dithiobis(2-nitrobenzoic acid), Ellman's reagent] to form 2-nitro-5-thiobenzoic acid, which can be detected by its absorbance at 412 nm (e=13,600 M
at pH 6.0 and above). The assays are performed in a convenient 96-well microplate format.
This kit is useful to screen inhibitors of MMP9, a potential therapeutic target. The MMP inhibitor NNGH is also included as a prototypic control inhibitor.
Thiol inhibitors should not be used with this kit, as they may interfere with the colorimetric assay.
Properties and Storage Information:
Shipped at conditions-Dry Ice, Appropriate short-term storage conditions--80°C, Appropriate long-term storage conditions-Multi, Storage information-Please refer to protocols
Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
The MMP-9 protein also known as matrix metalloproteinase-9 or gelatinase B functions as an enzyme involved in the breakdown of extracellular matrix proteins. It consists of a zinc ion at its active site and facilitates the degradation of type IV and V collagens fibronectin and elastin. MMP-9 has a molecular weight of approximately 92 kDa and is expressed in a variety of tissues including the liver lungs and immune cells. This enzyme can exist in monomer and dimer forms with its activity regulated by tissue inhibitors of metalloproteinases (TIMPs).
Biological function summary
Matrix metalloproteinase-9 profoundly influences tissue remodeling inflammation and angiogenesis. It does not form part of a larger protein complex but interacts closely with substrates in the extracellular matrix. MMP-9 plays important roles in processes such as embryogenesis reproduction and wound healing through the remodeling of surrounding tissues. The MMP-9 protein is often measured using assays like ELISA or analyzed via techniques such as Western blotting to determine its expression levels and activity in different biological contexts.
Pathways
MMP-9 participates in the matrix metalloproteinase pathway and the NF-kB signaling pathway. These pathways are essential in orchestrating processes such as tissue remodeling and inflammatory responses. MMP-9 acts alongside other matrix metalloproteinases including MMP-2 and is regulated by factors like cytokines growth factors and hormones ensuring the precision of extracellular matrix degradation during physiological processes.
Matrix metalloproteinase-9 has associations with cancer invasion and metastasis as well as chronic inflammatory diseases like rheumatoid arthritis. In cancer upregulated MMP-9 expression aids tumor cells in breaching the basement membrane facilitating metastasis. The disorder-associated pathways often involve interactions with proteins like vascular endothelial growth factor (VEGF) and transforming growth factor-beta (TGF-beta). Understanding MMP-9's role in these conditions can contribute to developing targeted therapies that inhibit its activity potentially mitigating disease progression.
