Journal
FEBS LETTERS
Volume 486, Issue 2, Pages 131-135Publisher
WILEY
DOI: 10.1016/S0014-5793(00)02258-4
Keywords
cycloamylose; refolding; artificial chaperone; citrate synthase; carbonic anhydrase B; lysozyme
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High molecular weight cyclic alpha -1,4-glucan (referred to as cycloamylose) exhibited an artificial chaperone property toward three enzymes in different categories. The inclusion properties of cycloamylose effectively accommodated detergents, which keep the chemically denatured enzymes from aggregation, and promoted proper protein folding. Chemically denatured citrate synthase was refolded and completely recovered it's enzymatic activity after dilution with polyoxyethylenesorbitan buffer followed by cycloamylose treatment. The refolding was completed within 2 h, and the activity of the refolded citrate synthase was quite stable. Cycloamylose also promoted the refolding of denatured carbonic anhydrase B and denatured lysozyme of a reduced form. (C) 2000 Federation of European Biochemical Societies. Published by Elsevier Science B.V. All rights reserved.
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