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

Autor:	Andrew W. Hakin, Gavin R. Hedwig
Rok vydání:	2010
Předmět:	Aqueous solution Chemistry Biophysics Analytical chemistry Thermodynamics Partial molar property Protonation Atmospheric temperature range Biochemistry Heat capacity Dilution Molar volume Side chain Physical and Theoretical Chemistry Molecular Biology
Zdroj:	Journal of Solution Chemistry. 39:1721-1734
ISSN:	1572-8927 0095-9782
Popis:	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, \(V_{2}^{\mathrm{o}}\), were determined. The partial molar heat capacities at infinite dilution, \(C_{p,2}^{\mathrm{o}}\), were also determined for these solutes over the same temperature range. These \(V_{2}^{\mathrm{o}}\) and \(C_{p,2}^{\mathrm{o}}\) 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a394c7618ea222252380c375bc9696e2 https://doi.org/10.1007/s10953-010-9605-y Zobrazit plný text záznamu Full text from SpringerLink