Long-range electron transfer in proteins: A renormalized-perturbation-expansion approach

Carla Goldman
Phys. Rev. A 43, 4500 – Published 1 April 1991
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Abstract

An efficient algorithm for calculating the electronic matrix element TDA for electron-transfer reactions between a donor D and acceptor A in biological systems is presented. The tight-binding Hamiltonian and the Green’s-function formalism are used to obtain TDA via the renormalized-perturbation expansion. This procedure permits taking into account the detailed structure of the array provided by the specific protein that assists the electron transfer. As an application, results are presented for the calculation of some of these matrix elements in metal-labeled myoglobin, and comparison with experimental data is made. By analyzing the self-energies at each site of the array, these results can be understood as a small-denominator effect.

  • Received 31 October 1990

DOI:https://doi.org/10.1103/PhysRevA.43.4500

©1991 American Physical Society

Authors & Affiliations

Carla Goldman

  • Department of Chemistry, California Institute of Technology, Pasadena, California 91125
  • Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109

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Issue

Vol. 43, Iss. 8 — April 1991

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