Thermodynamics of protein model compounds: apparent molar volumes and isobaric heat capacities of selected cyclic dipeptides and their transfer properties from water to aqueous urea solutions at T = 298.15 K
Literature Information
Andrew W. Hakin, Jin L. Liu, Meghan O'Shea, Brianne Zorzetti
The effects of added protein denaturant (urea) on the volumetric and thermochemical properties of several protein model compounds (cyclic dipeptides) have been investigated at T = 298.15 K and p = 0.1 MPa. Relative densities and specific heat capacities are reported for the cyclic dipeptides cyclo-glycylglycine, cyclo-alanylalanine and cyclo-sarcosylsarcosine in aqueous urea solutions in the concentration range 1 ≤ m(urea)/mol kg−1 ≤ 11. The measurements were performed using a Sodev O2D vibrating tube densimeter and a Picker dynamic microcalorimeter. Apparent molar volumes and heat capacities have been calculated and their concentration dependences have been modeled to give partial molar properties at infinite dilution. The partial molar properties have been used to calculate thermodynamic parameters describing the transfer of the cyclic dipeptides from water to aqueous urea solutions. Estimates of transfer properties for the glycyl group and the alanyl side chain have been obtained using the principles of group additivity. The interaction of urea with the investigated protein model compounds is discussed in terms of the role of urea as a protein denaturant.
Related Literature
Hydrogen adsorption and desorption at the Pt(110)-(1×2) surface: experimental and theoretical study
Kees-Jan Weststrate, Ludo Juurlink
DOI: 10.1039/C3CP44503H
Adsorption of diferrocenylacetylene on Au(111) studied by scanning tunneling microscopy
Rebecca C. Quardokus, Natalie A. Wasio, Ryan P. Forrest, Craig S. Lent, Steven A. Corcelli, John A. Christie, Kenneth W. Henderson, S. Alex Kandel
DOI: 10.1039/C3CP50225B
Reliable contact fabrication on nanostructured Bi2Te3-based thermoelectric materials
Shien-Ping Feng, Ya-Huei Chang, Jian Yang, Bed Poudel, Bo Yu, Zhifeng Ren, Gang Chen
DOI: 10.1039/C3CP50993A
Effective bulk and surface temperatures of the catalyst bed of FT-IR cells used for in situ and operando studies
Haoguang Li, Mickael Rivallan, Frederic Thibault-Starzyk, Arnaud Travert
DOI: 10.1039/C3CP50442E
Low-lying excited-states of 5-benzyluracil
Marco Micciarelli, Carlo Altucci, Bartolomeo Della Ventura, Raffaele Velotta, Valer Toşa, Adán B. Gónzalez Pérez, Martin Pérez Rodríguez, Ángel R. de Lera, Attila Bende
DOI: 10.1039/C3CP50343G
QM/MM simulations of vibrational spectra of bacteriorhodopsin and channelrhodopsin-2
Kai Welke, Hiroshi C. Watanabe, Tino Wolter, Marcus Elstner
DOI: 10.1039/C3CP44181D
Microscopic effects of the bonding configuration of nitrogen-doped graphene on its reactivity toward hydrogen peroxide reduction reaction
Ping Wu, Pan Du, Hui Zhang, Chenxin Cai
DOI: 10.1039/C3CP50900A
Computational study of the spin-state energies and UV-Visspectra of bis(1,4,7-triazacyclononane) complexes of some first-row transition metal cations
Matija Zlatar, Maja Gruden-Pavlović, Mireia Güell
DOI: 10.1039/C2CP43735J
A novel method for automatic single molecule tracking of blinking molecules at low intensities
Christoph Kölbl, Beate Stempfle
DOI: 10.1039/C3CP44693J
You might also like
What precautions should be taken when handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3)?
When handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3), it ...
What precautions should be taken when handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9)?
When handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9), it...
How should waste containing 2-[2-(2-Methoxyethoxy)ethoxy]ethyl 4-methylbenzenesulfonate (CAS: 62921-74-8) be handled?
Waste containing this compound (CAS: 62921-74-8) should be handled according to ...
How should waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate be handled?
Waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate should be collected i...
How is 5-({4-[(2S,4R)-4-Hydroxy-2-methyltetrahydro-2H-pyran-4-yl]-2-thienyl}sulfanyl)-1-methyl-1,3-dihydro-2H-indol-2-one (CAS: 166882-70-8) typically synthesized?
This compound can be synthesized using a multi-step process involving the conjug...
Are there alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid (CAS: 7312-27-8) in synthesis?
There are several alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid in syn...
How should Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84-9) be stored?
Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84...
How should waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) be handled?
Waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) should be coll...
How is Methyl 5-iodo-2-methylbenzoate (CAS: 103440-54-6) typically synthesized?
Methyl 5-iodo-2-methylbenzoate can be synthesized through the iodination of meth...
How is 5-Chloro[1,2,4]triazolo[1,5-a]pyridine (CAS: 1427399-34-5) typically synthesized?
5-Chloro[1,2,4]triazolo[1,5-a]pyridine is commonly synthesized via the condensat...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














