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Facile preparation and some applications of an affinity matrix with a cleavable connector arm containing a disulfide bond

Jayabaskaran, Chellathai and Davison, Peter F and Paulus, Henry (1987) Facile preparation and some applications of an affinity matrix with a cleavable connector arm containing a disulfide bond. In: Preparative Biochemistry and Biotechnology, 17 (2). pp. 121-141.

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A versatile affinity matrix in which the ligand of interest is linked to the matrix through a connector arm containing a disulfide bond is described. It can be synthesized from any amino-substituted matrix by successive reaction with 2-imino-thio-lane, 5, 5'-dithiobis(2-nitrobenzoic acid), and a thiol derivative of the ligand of choice. The repertoire of ligands can be significantly increased by the appropriate use of avidin-biotin bridges. After adsorption of the material to be fractionated, elution can be effected by reducing the disulfide bond in the connector arm with dithiothreitol. Examples of the preparation and use of various affinity matrices based on amino-substituted Sepharose 6MB are given. One involves the immobilization of the Fab' fragment of a monoclonal antibody against Aspergillus oryzae β-galactosidase and the specific binding of that enzyme to the resulting immunoaffinity matrix. Another involves the immobilization of N-biotinyl-2-thioethylamine followed by complex formation with avidin. The resulting avidin-substituted matrix was used for the selective adsorption and subsequent recovery of mouse hybridoma cells producing anti-avidin antibodies. By further complexing the avidin-substituted matrix with appropriate biotinylated antigens, it should be possible to fractionate cells producing antibodies against a variety of antigens.

Item Type: Journal Article
Publication: Preparative Biochemistry and Biotechnology
Publisher: Taylore and Francis
Additional Information: Copyright of this article belongs to Taylore and Francis.
Department/Centre: Division of Biological Sciences > Biochemistry
Date Deposited: 24 Feb 2010 07:49
Last Modified: 23 Oct 2018 14:48
URI: http://eprints.iisc.ac.in/id/eprint/25614

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