Blumberger, Jochen
Free energies for biological electron transfer from QM/MM calculation: method, application and critical assessment
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 10:5651-5667, 2008

Computer simulations of biological electron transfer reactions are reviewed with a focus on the calculation of reaction free energy (driving force) and reorganization free energy. Then a mixed quantum mechanical/molecular mechanical (QM/MM) approach is described which is designed for computation of these quantities for pure electron transfer reactions with large donor-acceptor separation distances. The method is applied to intra-protein electron transfer in Ru(bpy)(2)(im)His33 cytochrome c and the results compared to experimental data. Several modeling aspects which are important for successful calculation of free energies with QM/MM are discussed in detail.

DOI:10.1039/b807444e

Find full text with Google Scholar.