Principle of the Assay: This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-TIMP-1 polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-TIMP-1 polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the TIMP-1 amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of TIMP-1 can be calculated!!Background/Introduction: Tissue inhibitor of metalloproteinase 1 (TIMP1), also known as Erythroid Potentiating Activity (EPA), is a 28,000 MW glycoprotein that is expressed from the several tissues of organisms. This protein is a member of the TIMP family. The glycoprotein is a natural inhibitor of the matrix metalloproteinases (MMPs), a group of peptidases involved in degradation of the extracellular matrix. It plays a major role in modulating the activity of interstitial collagenase as well as a number of connective tissue metalloendoproteases. Decreased TIMP1 and increased cathepsin V/L2 levels might play a role in the matrix degradation that is a hallmark of keratoconus corneas. It is able to promote cell proliferation in a wide range of cell types, and may also have an anti-apoptotic function.
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The Human TIMP-2 (Catalog #AAA494824) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA494824 ELISA Kit recognizes Human TIMP-2. It is sometimes possible for the material contained within the vial of "TIMP-2, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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