Journal article
A simple approach to the solvent reorganisation Gibbs free energy in electron transfer reactions of redox metalloproteins
We discuss a simple model for the environmental reorganisation Gibbs free energy, E-r, in electron transfer between a metalloprotein and a small reaction partner. The protein is represented as a dielectric globule with low dielectric constant, the metal centres as conducting spheres, all embedded in a continuous solvent with high dielectric constant.
This model has previously reproduced thermodynamic metalloprotein properties. E-r takes an analytic form expressed by a continuous image charge distribution, and depends weakly on the globular radius, indicating that repolarisation at the globule/solvent interface contributes less to these effects than to the work terms and driving force. (C) 1999 Elsevier Science B.V.
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Language: | English |
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Year: | 1999 |
Pages: | 320-324 |
ISSN: | 18734448 and 00092614 |
Types: | Journal article |
DOI: | 10.1016/S0009-2614(99)00231-6 |