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A Simple and Fast Method for the Isolation of Basolateral Plasma Membranes from Rat Small-intestinal Epithelial Cells

Overview
Journal Biochem J
Specialty Biochemistry
Date 1980 Jan 15
PMID 6245639
Citations 44
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Abstract

A method was developed for the analytical and preparative isolation of basolateral plasma membranes from rat small intestine. They were separated on a self-orientating Percoll (modified colloidal silica) gradient starting with a heavy microsomal-membrane fraction and involving centrifugation at 48,000 g for 1 h. (Na+ + K+)-stimulated ATPase activity, used as a marker enzyme for the basolateral plasma membrane, is enriched 20-fold compared with that found in the homogenate of isolated intestinal epithelial cells.

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