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MW: 50,000
Extinction Coefficient: 1.35

Frozen in 50 mM Tris-HCl, pH 8.0, with 200 mM NaCl and 0.05% NaN3.

The IgG fc fragment does not bind antigen; however, it does contain the classic antigenic determinants and biological activity with respect to cytotrophic reactions, binding of complement and catabolic rate control.

Storage: -20°C

Purity: >=95% by SDS-PAGE. No reaction by IEP to antisera to human IgG-fab.

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 or further manufacturing use only.

Ref: Ref: Ricardo, M.J. et al. 1984. Clinical Diagnosis and Management by Laboratory Methods (J.B. Henry, ed.), 860; Poljak, R. J. 1985. Methods Enzymol. 116, 190.