期刊
FEBS LETTERS
卷 573, 期 1-3, 页码 135-138出版社
WILEY
DOI: 10.1016/j.febslet.2004.07.073
关键词
curculin; taste-modifying protein; sweet taste; heterodimer; recombinant protein; reconstitution
Curculin from Curculigo latifolia is a unique sweet protein that exhibits both sweet-tasting and taste-modifying activities. We isolated a gene that encodes a novel protein highly homologous to curculin. Using cDNAs of the previously known curculin (designated as curculin1) and the novel curculin isoform (curculin2), we produced a panel of homodimeric and heterodimeric recombinant curculins by Escherichia coli expression systems. It was revealed that sweet-tasting and taste-modifying activities were exhibited solely by the heterodimer of curculin1 and curculin2. (C) 2004 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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