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Direct measurement of inositol in bovine myelin basic protein
R Smith1, P E Braun, M A Ferguson
1Department of Biochemistry, McGill University, Montreal PQ, Canada.
The Biochemical Journal
|November 15, 1987
Abstract:
Myelin basic protein has been isolated from bovine central-nervous-system myelin by four methods, none of which exposes the protein to acid. After purification the inositol content of both hydrolysed and unhydrolysed protein was quantified by g.c.-m.s. Basic protein prepared by all methods contained less than 4 mol % of inositol. It is concluded, contrary to a previous proposal, that covalent binding to phosphoinositides does not represent a general mechanism for attachment of this cytoplasmically-oriented protein to its membrane.