TIMP-4, Recombinant, Mouse, aa1-224 (Tissue Inhibitors of Metalloproteinases)

Catalog No : USB-145843
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Product name TIMP-4, Recombinant, Mouse, aa1-224 (Tissue Inhibitors of Metalloproteinases)
Catalog No USB-145843
Supplier’s Catalog No 145843
Supplier US Biologicals
Source antigen Recombinant, NS0 cells
Reactivity
Cross reactivity
Applications
Molecular weight 2526
Storage -20°C
Other names
Grade Highly Purified
Purity ~95% (SDS-PAGE)
Form Supplied as a liquid in Tris, NaCl.
Reactivity life 6 months
Note For reserch purpose only
Purity ~95% (SDS-PAGE)
Description Tissue inhibitors of metalloproteinases (TIMPs) are a family of secreted proteins that regulate the activation and proteolytic activity of the zinc enzymes known as matrix metalloproteinases (MMPs). There are four known members of the family, TIMP-1, -2, -3, and -4. TIMP-4 is produced by a wide range of tissues, particularly brain, heart, ovary and skeletal muscle (1, 2). Limited studies have shown that TIMP-4 has a tumor suppressive effect against Wilm’s tumor, exhibits negative correlation with glioma maligancy and is found in breast carcinoma cells (3, 5). TIMP-4 inhibits MMP-mediated proteolysis by forming a noncovalent binary complex with the MMP active site through its N-terminal domain. In addition, it binds to the hemopexin-like domain of proMMP-2 through its C-terminal domain in a manner similar to TIMP-2 (6). However, unlike TIMP-2, TIMP-4 does not promote proMMP-2 activation by MT1-MMP (MMP-14) (7). Although TIMP-4 is a potent inhibitor of most MMPs, it is not an effective inhibitor of ADAMs, such as TACE (8, 9). Source: Recombinant protein corresponding to aa1-224, Met1-Pro224, from mouse TIMP-4, NS0-derived. Molecular Weight: ~25-26kD Endotoxin: <0.10EU/1ug (LAL method). Biological Activity: Measured by its ability to inhibit human MMP-2 cleavage of a fluorogenic peptide substrate Mca-PLGL-Dpa-AR-NH2. The IC50 value is <3nM, as measured under the described conditions. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.