期刊
CHEMICAL COMMUNICATIONS
卷 51, 期 92, 页码 16498-16501出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc06097d
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The cationic tripeptide GAG undergoes three conformational changes in binary mixtures of water and ethanol. At 17 mol% of ethanol conformational sampling is shifted from pPII towards beta-strands. A more pronounced shift in the same direction occurs at 40 mol%. At ca. 55 mol% of ethanol and above a peptide concentration of ca. 0.2 M the ternary peptide-water-ethanolmixture forms a hydrogel which is comprised of unusually large crystalline like non-beta sheet fibrils forming a sample spanning matrix.
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