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Heat does not come in different colours: entropy-enthalpy compensation, free energy windows, quantum confinement, pressure perturbation calorimetry, solvation and the multiple causes of heat capacity effects in biomolecular interactions.
Cooper A, Johnson CM, Lakey JH, Nöllmann M. Cooper A, et al. Biophys Chem. 2001 Nov 28;93(2-3):215-30. doi: 10.1016/s0301-4622(01)00222-8. Biophys Chem. 2001. PMID: 11804727
Entropy-enthalpy compensation is a natural consequence of finite Delta C(p) values and, more generally, can arise as a result of quantum confinement effects, multiple weak interactions, and limited free energy windows, giving rise to thermodynamic homeostasis that m …
Entropy-enthalpy compensation is a natural consequence of finite Delta C(p) values and, more generally, can arise as a result …
Interactions of the peripheral subunit-binding domain of the dihydrolipoyl acetyltransferase component in the assembly of the pyruvate dehydrogenase multienzyme complex of Bacillus stearothermophilus.
Jung HI, Cooper A, Perham RN. Jung HI, et al. Eur J Biochem. 2003 Nov;270(22):4488-96. doi: 10.1046/j.1432-1033.2003.03842.x. Eur J Biochem. 2003. PMID: 14622277
The importance of a positive charge on the side-chain at position 135 for the interaction of the PSBD with E3 and E1 was apparent, although lysine was found to be an imperfect substitute for arginine. The results offer further evidence of entropy-enthalpy compensation ('th …
The importance of a positive charge on the side-chain at position 135 for the interaction of the PSBD with E3 and E1 was apparent, al …
A new level of architectural complexity in the human pyruvate dehydrogenase complex.
Smolle M, Prior AE, Brown AE, Cooper A, Byron O, Lindsay JG. Smolle M, et al. J Biol Chem. 2006 Jul 14;281(28):19772-80. doi: 10.1074/jbc.M601140200. Epub 2006 May 5. J Biol Chem. 2006. PMID: 16679318 Free PMC article.
Here, we present evidence for a novel subunit organization in which E3 and E3BP form subcomplexes with a 1:2 stoichiometry implying the existence of a network of E3 "cross-bridges" linking pairs of E3BPs across the surface of the E2 core assembly. We have als …
Here, we present evidence for a novel subunit organization in which E3 and E3BP form subcomplexes with a 1:2 stoichiometry imp …
Aqueous solubilization of C60 fullerene by natural protein surfactants, latherin and ranaspumin-2.
Vance SJ, Desai V, Smith BO, Kennedy MW, Cooper A. Vance SJ, et al. Biophys Chem. 2016 Jul-Aug;214-215:27-32. doi: 10.1016/j.bpc.2016.05.003. Epub 2016 May 13. Biophys Chem. 2016. PMID: 27214760 Free PMC article.
This promises to be a convenient way to interface a range of hydrophobic nanoparticles and related materials with biological macromolecules, with potential to exploit the versatility of recombinant protein engineering in the development of nano-bio interface devices …
This promises to be a convenient way to interface a range of hydrophobic nanoparticles and related materials with biological m …
Applications of pressure perturbation calorimetry in biophysical studies.
Zhai Y, Okoro L, Cooper A, Winter R. Zhai Y, et al. Biophys Chem. 2011 Jun;156(1):13-23. doi: 10.1016/j.bpc.2010.12.010. Epub 2011 Jan 4. Biophys Chem. 2011. PMID: 21255903 Review.
Pressure perturbation calorimetry (PPC) is a relatively new and efficient technique, to study the volumetric properties of biomolecules in solution. ...
Pressure perturbation calorimetry (PPC) is a relatively new and efficient technique, to study the volumetric properties of biomolecul …
Pressure perturbation calorimetry and the thermodynamics of noncovalent interactions in water: comparison of protein-protein, protein-ligand, and cyclodextrin-adamantane complexes.
Cameron DL, Jakus J, Pauleta SR, Pettigrew GW, Cooper A. Cameron DL, et al. J Phys Chem B. 2010 Dec 16;114(49):16228-35. doi: 10.1021/jp107110t. Epub 2010 Sep 27. J Phys Chem B. 2010. PMID: 20873754
Pressure perturbation calorimetry measurements on a range of cyclodextrin-adamantane, protein-ligand (lysozyme-(GlcNac)(3) and ribonuclease-2'CMP) and protein-protein (cytochrome c peroxidase-pseudoazurin) complexes in aqueous solution show consistent reductions in thermal …
Pressure perturbation calorimetry measurements on a range of cyclodextrin-adamantane, protein-ligand (lysozyme-(GlcNac)(3) and ribonu …
Biofoams and natural protein surfactants.
Cooper A, Kennedy MW. Cooper A, et al. Biophys Chem. 2010 Oct;151(3):96-104. doi: 10.1016/j.bpc.2010.06.006. Epub 2010 Jun 25. Biophys Chem. 2010. PMID: 20615601 Free PMC article. Review.
The ranaspumins from tropical frog foam nests comprise a range of proteins with a mixture of surfactant, carbohydrate binding and antimicrobial activities that together provide a stable, biocompatible, protective foam environment for developing eggs and embry …
The ranaspumins from tropical frog foam nests comprise a range of proteins with a mixture of surfactant, carbohydrate binding …
Ranaspumin-2: structure and function of a surfactant protein from the foam nests of a tropical frog.
Mackenzie CD, Smith BO, Meister A, Blume A, Zhao X, Lu JR, Kennedy MW, Cooper A. Mackenzie CD, et al. Biophys J. 2009 Jun 17;96(12):4984-92. doi: 10.1016/j.bpj.2009.03.044. Biophys J. 2009. PMID: 19527658 Free PMC article.
Despite the lack of any significant sequence similarity, Rsn-2 in solution adopts a compact globular fold characteristic of the cystatin family, comprising a single helix over a four-stranded sheet, in a motif not previously associated with surfactant …
Despite the lack of any significant sequence similarity, Rsn-2 in solution adopts a compact globular fold characteristic of the cysta …
Microcalorimetry of interaction of dihydro-imidazo-phenanthridinium (DIP)-based compounds with duplex DNA.
Guthrie KM, Parenty AD, Smith LV, Cronin L, Cooper A. Guthrie KM, et al. Biophys Chem. 2007 Mar;126(1-3):117-23. doi: 10.1016/j.bpc.2006.05.006. Epub 2006 Jun 5. Biophys Chem. 2007. PMID: 16750289
Isothermal titration (ITC) and differential scanning calorimetry (DSC) have been used to screen the binding thermodynamics of a family of DNA intercalators based on the dihydro-imidazo-phenanthridinium (DIP) framework. ...This ability to vary side chain functionality witho …
Isothermal titration (ITC) and differential scanning calorimetry (DSC) have been used to screen the binding thermodynamics of a famil …
Adsorption of frog foam nest proteins at the air-water interface.
Cooper A, Kennedy MW, Fleming RI, Wilson EH, Videler H, Wokosin DL, Su TJ, Green RJ, Lu JR. Cooper A, et al. Biophys J. 2005 Mar;88(3):2114-25. doi: 10.1529/biophysj.104.046268. Epub 2004 Dec 30. Biophys J. 2005. PMID: 15626715 Free PMC article.
At the highest concentration studied (0.5 mg ml(-1)), the adsorbed layer is characterized by three distinct regions: a protruding top layer of approximately 20 angstroms, a middle layer of approximately 30 angstroms, and a more diffuse submerged layer project …
At the highest concentration studied (0.5 mg ml(-1)), the adsorbed layer is characterized by three distinct regions: a protruding top …
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