Evidence for reaction at two binding sites in the oxidation of parsley plastocyanin by tris(1,10-phenanthroline)cobalt(III)
- 1 January 1986
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 9,p. 2007-2009
- https://doi.org/10.1039/dt9860002007
Abstract
The effect of redox inactive complexes of charge 4+, 5+, 6+, and 7+ as competitive inhibitors for the [Co(phen)3]3+(phen = 1,10-phenanthroline) oxidation of parsley plastocyanin PCu(I) has been studied. The maximum effectiveness of the inhibitors is 53%(at pH 5.8) increasing to 61 %(at pH 7.5). This is believed to represent the extent of reaction at the east face binding site close to Tyr 83. Some or all of the remaining reaction is at the His 87 north site.This publication has 2 references indexed in Scilit:
- Structure of oxidized poplar plastocyanin at 1·6 Å resolutionJournal of Molecular Biology, 1983
- NMR study of the interaction of plastocyanin with chromium(III) analogues of inorganic electron transfer reagentsBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1980