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Categories: Peptides & Proteins / Proteins

Product name			Haptoglobin, beta, Recombinant, Human
Catalog No			USB-H1820-01F
Supplier’s Catalog No			H1820-01F
Supplier			US Biologicals
Source antigen			Recombinant, E. coli
Reactivity
Cross reactivity
Applications
Molecular weight			31.76

Storage			-20°C
Other names
Grade			Purified
Purity			~90% by SDS-PAGE
Form			Supplied as a liquid in 20mM Tris-HCl, pH 8.0, 50% glycerol.
Reactivity life			6 months
Note			For reserch purpose only
Purity			~90% by SDS-PAGE
Description			Recombinant Haptoglobin b-chain comprises a 245aa fragment (162-406) corresponding to the mature haptoglobin b-chain and is expressed in E. coli with an amino-terminal hexahistidine tag. Haptoglobin is a glycoprotein secreted in the blood plasma that binds free haemoglobin thereby inhibiting its oxidative activity and preventing iron loss following haemolysis. Haptoglobin also regulates the activity of many cell types of the immune system and is an extracellular chaperone. Haptoglobin is produced mostly by hepatocytes but also by other tissues: e.g. skin, lung and kidney. Applications: Suitable for antigenic applications in immunological protocols as well as calibrators and controls. Other applications have not been tested. Recommended Dilutions: Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months 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.