The Partial Molar Volumes and Heat Capacities of the Arginyl Side-chain of Proteins in Aqueous Solution over the Temperature Range 288.15 to 328.15 K

被引：0
作者：
Gavin R. Hedwig
Andrew W. Hakin
机构：
[1] Massey University,Institute of Fundamental Sciences–Chemistry
[2] University of Lethbridge,Department of Chemistry and Biochemistry
来源：
Journal of Solution Chemistry | 2010年 / 39卷
关键词：
Partial molar volume; Partial molar heat capacity; -Acetylarginamide; Aqueous solution; Arginyl side-chain contribution;
D O I：
暂无
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学科分类号：
摘要：
Solution densities over the temperature range 288.15 to 328.15 K have been measured for aqueous solutions of N-acetylarginamide monotrifluoroacetate and sodium trifluoroacetate, from which the partial molar volumes at infinite dilution, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$V_{2}^{\mathrm{o}}$\end{document}, were determined. The partial molar heat capacities at infinite dilution, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$C_{p,2}^{\mathrm{o}}$\end{document}, were also determined for these solutes over the same temperature range. These \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$V_{2}^{\mathrm{o}}$\end{document} and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$C_{p,2}^{\mathrm{o}}$\end{document} results, along with relevant data taken from the literature, have been used to calculate the contributions of the protonated arginyl side-chain to the thermodynamic properties. These new side-chain values were critically compared with those obtained previously using alternative side-chain model compounds.
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页码：1721 / 1734
页数：13
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