Mechanistic Studies of the Lithium Enolate of 4-Fluoroacetophenone: Rapid-Injection NMR Study of Enolate Formation, Dynamics, and Aldol Reactivity
Mechanistic Studies of the Lithium Enolate of 4-Fluoroacetophenone: Rapid-Injection NMR Study of Enolate Formation, Dynamics, and Aldol Reactivity
Kristopher J. Kolonko, Daniel J. Wherritt and Hans J. Reich
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja207218f/aop/images/medium/ja-2011-07218f_0005.gif
Journal of the American Chemical Society
DOI: 10.1021/ja207218f
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The feasibility of parameterizing four-state equilibria using relaxation dispersion measurements
The feasibility of parameterizing four-state equilibria using relaxation dispersion measurements
Abstract Coupled equilibria play important roles in controlling information flow in biochemical systems, including allosteric molecules and multidomain proteins. In the simplest case, two equilibria are coupled to produce four interconverting states. In this study, we assessed the feasibility of determining the degree of coupling between two equilibria in a four-state system via relaxation dispersion measurements. A major bottleneck in this effort is the lack of efficient approaches to...
[NMR paper] Perturbation of the conformational equilibria in Ras by selective mutations as studie
Perturbation of the conformational equilibria in Ras by selective mutations as studied by 31P NMR spectroscopy.
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FEBS Lett. 2004 Dec 17;578(3):305-10
Authors: Spoerner M, Wittinghofer A, Kalbitzer HR
Ras regulates a variety of different signal transduction pathways acting as molecular switch. It was shown by liquid and solid-state (31)P NMR spectroscopy that Ras exists in the...
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[NMR paper] Tautomerism, acid-base equilibria, and H-bonding of the six histidines in subtilisin
Tautomerism, acid-base equilibria, and H-bonding of the six histidines in subtilisin BPN' by NMR.
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Protein Sci. 2003 Apr;12(4):794-810
Authors: Day RM, Thalhauser CJ, Sudmeier JL, Vincent MP, Torchilin EV, Sanford DG, Bachovchin CW, Bachovchin WW
We have determined by (15)N, (1)H, and (13)C NMR, the chemical behavior of the six histidines in subtilisin BPN' and their PMSF and peptide boronic acid complexes in aqueous solution as a...
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[NMR paper] pH-dependent equilibria of yeast Met80Ala-iso-1-cytochrome c probed by NMR spectrosco
pH-dependent equilibria of yeast Met80Ala-iso-1-cytochrome c probed by NMR spectroscopy: a comparison with the wild-type protein.
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Chem Biol. 1995 Jun;2(6):377-83
Authors: Banci L, Bertini I, Bren KL, Gray HB, Turano P
BACKGROUND: Cytochrome c has five distinct pH-dependent conformational states, including two alkaline forms of unknown structure. It is believed that in both of the alkaline forms a...
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[NMR paper] Low-affinity platelet factor 4 1H NMR derived aggregate equilibria indicate a physiol
Low-affinity platelet factor 4 1H NMR derived aggregate equilibria indicate a physiologic preference for monomers over dimers and tetramers.
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Biochemistry. 1991 Jan 29;30(4):925-34
Authors: Mayo KH
Low-affinity platelet factor 4 (LA-PF4), unlike another related, sequentially homologous (about 50%) platelet-specific protein, platelet factor 4 (PF4), is an active mitogenic and chemotactic...