Abstract
Density as a function of temperature is determined for a set of α-chymotrypsin and bovine serum albumin solutions in pure water both in the native and the degraded state, the latter achieved by heating them above the denaturation temperature. This allows the temperature of maximum density (TMD) to be obtained against composition. Partial molar volume at infinite dilution of the protein is also calculated. Thermodynamic consistency between composition dependence of TMD and temperature dependence of partial volume is checked, obtaining satisfactory results. TMD behaviour against mass fraction for both native proteins is very similar, but important differences between native and degraded states, and also between the degraded forms of both proteins are found. These results show, for the first time, the strong effects that protein degradation have over the TMD of aqueous solutions, and therefore, over the microscopic structure of water.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
