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  • Title: The partial molar heat capacity and volume of the peptide backbone group of proteins in aqueous solution.
    Author: Häckel M, Hedwig GR, Hin HJ.
    Journal: Biophys Chem; 1998 Jul 13; 73(1-2):163-77. PubMed ID: 17029721.
    Abstract:
    The partial molar heat capacities have been determined for the series of peptides alanyl(glycyl)(x)glycine, x=1-3, and for the compounds N-acetylglycinamide and N-acetyl glycylglycinamide in aqueous solution over the temperature range 10-100 degrees C using high sensitivity scanning microcalorimetry. The partial molar volumes for these compounds have also been determined over the temperature range from 10 to 90 degrees C using a scanning densimetric method. The results were used to derive the partial molar heat capacities and volumes of the glycyl group at temperatures in the range 10-100 degrees C. The results obtained are critically compared with literature results derived using heat capacity and volume data for some oligoglycines.
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