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首页> 外文期刊>Biophysical Chemistry: An International Journal Devoted to the Physical Chemistry of Biological Phenomena >Hydration of diglycyl tripeptides with non-polar side chains: a volumetric study
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Hydration of diglycyl tripeptides with non-polar side chains: a volumetric study

机译：具有非极性侧链的二甘氨酰三肽的水合：一项体积研究

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摘要

We have determined the apparent molar volumes and the apparent molar adiabatic compressibilities at 25 degrees C of 10 X-Gly-Gly and Gly-Gly-X tripeptides in which X represents a residue with a non-polar side chain. We also have determined the changes in volume and compressibility which accompany neutralization of the amino and carboxyl termini in these tripeptides. The mutual influence of the non-polar side chain of the X residue and the terminal amino and carboxyl groups on the hydration of each other depends on the chemical nature of the side chain and the state of ionization of the termini. We interpret our data in terms of the hydration of the component aliphatic, aromatic, and charged atomic groups, as well as the mutual interactions between these groups. (C) 1998 Elsevier Science B.V. All rights reserved. [References: 52]
机译：我们已经确定了10 X-Gly-Gly和Gly-Gly-X三肽在25℃下的表观摩尔体积和表观摩尔绝热可压缩性，其中X代表具有非极性侧链的残基。我们还确定了伴随这些三肽中氨基和羧基末端的中和而产生的体积和可压缩性的变化。 X残基的非极性侧链与末端氨基和羧基对彼此水合的相互影响取决于侧链的化学性质和末端的电离状态。我们根据脂族，芳族和带电原子基团的水合作用以及这些基团之间的相互作用来解释我们的数据。 （C）1998 Elsevier Science B.V.保留所有权利。 [参考：52]

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