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Categories: Peptides & Proteins / Proteins

Product name			A2m, Recombinant, Rat, aa620-750, His-Tag (Alpha-2-Macroglobulin)
Catalog No			USB-372096
Supplier’s Catalog No			372096
Supplier			US Biologicals
Source antigen			Recombinant, E. coli
Reactivity
Cross reactivity
Applications
Molecular weight			16.9

Storage			-20°C
Other names
Grade			Highly Purified
Purity			~90% (SDS-PAGE)
Form			Supplied as a liquid in Tris, 50% glycerol.
Reactivity life			6 months
Note			For reserch purpose only
Purity			~90% (SDS-PAGE)
Description			Is able to inhibit all four classes of proteinases by a unique 'trapping' mechanism. This protein has a peptide stretch, called the 'bait region' which contains specific cleavage sites for different proteinases. When a proteinase cleaves the bait region, a conformational change is induced in the protein which traps the proteinase. The entrapped enzyme rains active against low molecular weight substrates (activity against high molecular weight substrates is greatly reduced). Following cleavage in the bait region a thioester bond is hydrolyzed and mediates the covalent binding of the protein to the proteinase. Source: Recombinant protein corresponding to aa620-750 from rat A2m, fused to His-Tag at N-terminal, expressed in E. coli. Molecular Weight: ~16.9kD AA Sequence: LIYDLLPVKDLTGFPQGADQREEDTNGCVKQNDTYINGILYSPVQNTNEEDMYGFLKDMGLKVFTNSNIRKPKVCERLRDNKGIPAAYHLVSQSHMDAFLESSESPTETRRSYFPETWIWDLVVVDSAGVA 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.