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Biomedical chromatography : BMC

Screening and chromatographic assessing of a novel IgG biomimetic ligand.


PMID 16708378

Abstract

A novel biomimetic ligand, N-benzyloxycarbonyl-l-tyrosine (N-cbz-l-Tyr), was screened by a combination method of molecular docking and immobilized receptor technique. Then, N-cbz-l-Tyr was immobilized on Sepharose CL-4B to prepare a specific affinity adsorbent for immunoglobulin G (IgG). Scatchard analysis of the binding isotherm for IgG on the adsorbent gave an association constant (K(a)) of 4.91 x 10(6) m(-1) and a theoretical maximum adsorption capacity of 17.3 mg IgG/mL gel. IgG with a purity of 98% was separated from human plasma by this new affinity adsorbent.

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CL4B200 Sepharose® CL-4B, Cross-linked