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MW: Hp 2-2: 170,000-900,000
Extinction Coefficient: 1.20

Salt-free lyophilized solid.

Haptoglobin 2-2 (Hp 2-2) is the least effective of the three haptoglobin phenotypes in binding free hemoglobin and therefore provides less antioxidant benefits than Hp 1-1. Hp 2-2 is associated with renal failure, familial epilepsy, hypertension, atherosclerosis and coronary heart diseases.
Individuals who are phenotype 2-2 have the lowest concentration of haptoglobin in plasma.

Storage: -20°C

Purity: >=95% by SDS-PAGE, no visible alpha-1 light chain by SDS-PAGE

Prepared from plasma shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA approved tests.

Athens Research & Technology products are laboratory reagents and are not to be administered to humans or used for any drug purpose. For research use only.

Ref:
Smithies, O et al. 1955. Biochem. J. 61, 629.
Sadrzadeh, S.M.H. et al. 2004. Clin. Chem. 50, 1095.