Principle of the Assay: This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-TIMP-2 polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-TIMP-2 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-2 amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of TIMP-2 can be calculated!!Background/Introduction: TIMP metallopeptidase inhibitor 2, also known as TIMP-2, is a 21-kD protein, which is secreted by human melanoma cells and binds to type IV collagenase proenzyme secreted by the same cells. The TIMP2 gene is a member of the TIMP gene family, It is encoded by 5 exons spanning 83 kb of genomic DNA. The proteins encoded by this gene family are natural inhibitors of the matrix metalloproteinases, a group of peptidases involved in degradation of the extracellular matrix. It has an amino acid sequence with many similarities to human tissue inhibitor of metalloproteinase (TIMP1). TIMP2 is a tissue inhibitor of metalloproteinases, TIMP2 induced a decrease in total protein tyrosine phosphatase (PTP) activity associated with beta-1 integrin subunits as well as dissociation of the phosphatase SHP1 from beta-1.
NCBI and Uniprot Product Information
NCBI Description
This gene belongs to the TIMP gene family. The proteins encoded by this gene family are inhibitors of the matrix metalloproteinases, a group of peptidases involved in degradation of the extracellular matrix (ECM). Expression of this gene is induced in response to mitogenic stimulation and this netrin domain-containing protein is localized to the ECM. Mutations in this gene have been associated with the autosomal dominant disorder Sorsby's fundus dystrophy. [provided by RefSeq, Jul 2008]
Uniprot Description
TIMP3: Complexes with metalloproteinases (such as collagenases) and irreversibly inactivates them by binding to their catalytic zinc cofactor. May form part of a tissue-specific acute response to remodeling stimuli. Known to act on MMP-1, MMP-2, MMP-3, MMP-7, MMP-9, MMP-13, MMP-14 and MMP-15. Interacts with EFEMP1. Belongs to the protease inhibitor I35 (TIMP) family.
Protein type: Secreted, signal peptide; Secreted; Motility/polarity/chemotaxis
Chromosomal Location of Human Ortholog: 22q12.3
Cellular Component: extracellular matrix; proteinaceous extracellular matrix; extracellular space; basement membrane; nucleus
Molecular Function: metalloendopeptidase inhibitor activity; protein binding; protease binding; metal ion binding
Biological Process: negative regulation of metalloenzyme activity; visual perception; response to cytokine stimulus; response to hormone stimulus; negative regulation of membrane protein ectodomain proteolysis
Disease: Fundus Dystrophy, Pseudoinflammatory, Of Sorsby
Research Articles on TIMP-3
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Product Notes
The Human TIMP-3 timp3 (Catalog #AAA494825) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA494825 ELISA Kit recognizes Human TIMP-3. It is sometimes possible for the material contained within the vial of "TIMP-3, 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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