Spectrophotometric method for quantitative determination of nonionic, ionic and zwitterionic detergents

Rajakumari, Sona and Srinivasan, Malathi and Rajasekharan, Ram (2006) Spectrophotometric method for quantitative determination of nonionic, ionic and zwitterionic detergents. In: Journal of Biochemical and Biophysical Methods, 68 (2). pp. 133-137.

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Abstract

Detergents serve as means of solubilizing biological membranes and thus play an important role in purification and characterization of membrane proteins. We report here a simple method to estimate the amount of detergent bound to a protein or present in an aqueous solution. The method is based on the turbidity caused by the addition of a detergent to triolein. Detergent bound to an integral membrane protein, lysophosphatidic acid acyltransferase, was separated by native gel electrophoresis and the amount of detergent bound to the same was estimated. This method is applicable for Triton X-100, sodium dodecyl sulfate and zwitterionic detergent, and was validated in the presence of reagents commonly used in membrane protein solubilization and purification.

Item Type:	Journal Article
Publication:	Journal of Biochemical and Biophysical Methods
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier
Keywords:	Detergents; Turbidometric; Lysophosphatidic acid acyltransferase; Membrane solubilization; Protein-bound detergent
Department/Centre:	Division of Biological Sciences > Biochemistry
Date Deposited:	12 Oct 2006
Last Modified:	19 Sep 2010 04:32
URI:	http://eprints.iisc.ac.in/id/eprint/8733

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