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Are unit charges always negligible? |
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| Authors: | I Bertini Giovanni Gori-Savellini Claudio Luchinat |
| Institution: | (1) Department of Chemistry, University of Florence, Via Gino Capponi 7, I-50121 Florence, Italy, IT;(2) Department of Soil Science and Plant Nutrition, University of Florence, P.le delle Cascine 28, I-50144 Florence, Italy, IT |
| Abstract: | The electrostatic contribution to the reduction potentials due to the unit charges of ionizable residues largely explains the span in redox potentials in a series of high-potential Fe4S4 iron-sulfur proteins and mutants. This appears to be a lucky case in which other contributions (in general) larger than that due to unit charges cancel out. Received, accepted: 26 November 1996 |
| Keywords: | Key words HiPIP Ferredoxins Poisson-Boltzmann equation Electrostatic potentials Net charges |
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