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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-required 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.

Product Citations:
Franco, Andrea, et al. "Human Fc Receptor–Like 5 Binds Intact IgG via Mechanisms Distinct from Those of Fc Receptors."The Journal of Immunology?190, no. 11 (2013): 5739-5746.

Bakovic?, Maja Puc?ic?, et al. "High-Throughput IgG Fc N-Glycosylation Profiling by Mass Spectrometry of Glycopeptides."?Journal of proteome research?12, no. 2 (2013): 821-831

Barb, Adam W., et al. "NMR Characterization of immunoglobulin G Fc glycan motion on enzymatic sialylation."?Biochemistry?51, no. 22 (2012): 4618-4626.

Padmanabhan A, et al. Intravenous immunoglobulin for the treatment of severe refractory heparin induced thrombocytopenia. Chest, Available online 17 April 2017 in press, corrected proof.

Anquetil F, et al. IgM and IgA Rheumatoid Factors Purified from Rheumatoid Arthritis Sera Boost the Fc Receptor– and Complement-Dependent Effector Functions of the Disease-Specific Anti–Citrullinated Protein Autoantibodies. J Immunol. 2015 Apr 15;194(8):3664-74. doi: 10.4049/jimmunol.1402334. Epub 2015 Mar 13.

Frank M, et al. Immunoglobulin G1 Fc domain motions: implications for Fc engineering. J Mol Biol. 2014 Apr 17;426(8):1799-811. doi: 10.1016/j.jmb.2014.01.011. Epub 2014 Feb 9.

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.