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Science 14 July 1978:
Vol. 201. no. 4351, pp. 151 - 153
DOI: 10.1126/science.208146
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Articles

Science, Vol 201, Issue 4351, 151-153
Copyright © 1978 by American Association for the Advancement of Science

articles

Investigation of electron tunneling between cytochrome c peroxidase and cytochrome c

MJ Potasek

The nature of electron transfer between the bound complex cytochrome c and cytochrome c peroxidase has been investigated. Experimental verification of the predicted charge-transfer band provides evidence of electron tunneling as the mechanism of transfer between these molecules in solution at room temperature. The measured transfer distance is congruent to 7 angstroms between heme edges, which results in a distance of congruent to 15 to 20 angstroms between iron atoms.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)