Electron tunneling through covalent and noncovalent pathways in proteins
- 15 April 1987
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 86 (8) , 4488-4498
- https://doi.org/10.1063/1.452723
Abstract
A model is presented for electron tunneling in proteins which allows the donor–acceptor interaction to be mediated by the covalent bonds between amino acids and noncovalent contacts between amino acid chains. The important tunneling pathways are predicted to include mostly bonded groups with less favorable nonbonded interactions being important when the through bond pathway is prohibitively long. In some cases, vibrational motion of nonbonded groups along the tunneling pathway strongly inluences the temperature dependence of the rate. Quantitative estimates for the sizes of these noncovalent interactions are made and their role in protein mediated electron transport is discussed.Keywords
This publication has 27 references indexed in Scilit:
- Temperature dependence of and ligation effects on long-range electron transfer in complementary (zinc,ferric) hemoglobin hybridsJournal of the American Chemical Society, 1986
- Stereoelectronic effects in intramolecular long-distance electron transfer in radical anions as predicted by ab-initio MO calculationsJournal of the American Chemical Society, 1986
- Through-bond charge transfer interaction and photoinduced charge separationPublished by Walter de Gruyter GmbH ,1986
- Electron transfer through aromatic spacers in bridged electron-donor-acceptor moleculesJournal of the American Chemical Society, 1985
- Picosecond fluorescence studies on intramolecular photochemical electron transfer in porphyrins linked to quinones at two different fixed distancesThe Journal of Physical Chemistry, 1985
- Kinetics of intermolecular and intramolecular electron transfer from ruthenium(II) complexes to ferricytochrome cJournal of the American Chemical Society, 1984
- State-selective photochemistry from the higher excited states of methylbenzaldehydes: intermolecular vs. intramolecular hydrogen abstractionJournal of the American Chemical Society, 1984
- Model reactions in photosynthesisBiochimica et Biophysica Acta (BBA) - Reviews on Bioenergetics, 1983
- Electron transfer in proteinsJournal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 1983
- Long-range intervalence electron tunneling through fully saturated systemsJournal of the American Chemical Society, 1982