Analytical Biochemistry 1987-04-01

Tresyl activation of a hydroxyalkyl ligand for coupling to a hydrazide gel: stable immobilization of T-2 toxin for affinity purification of T-2 antibody.

K I Allam, M Ehrat, D Cecchini, B A Warden, R W Giese

Index: Anal. Biochem. 162(1) , 171-7, (1987)

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Abstract

A stable T-2 hydrazide gel is prepared by activating T-2 toxin with tresyl chloride followed by coupling to agarose-adipic acid hydrazide. Utilized as an affinity chromatography column, this T-2 hydrazide gel purifies a monoclonal antibody for T-2 in high yield directly from ascites fluid. Specific antibody trapped on the column is eluted either with excess T-2 or at pH 11.6. Much less successful are two other T-2 affinity columns that were prepared and evaluated: T-2 bovine serum albumin Affi-Gel 15 and T-2 hexylamine Sepharose.

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