Rapid intramolecular electron-transfer in pulse radiolysis experiments on the NO2-modified tyrosine83 derivative of plastocyanin
Abstract
The observation of an NO2–˙ radical intermediate in the pulse-radiolytic reduction of spinach plastocyanin PCuI, NO2-modified at Tyr83, but not in the case of the PCuII derivative, is consistent with a rapid NO2–˙ CuII Intramolecular electron-transfer process with K>107 S–1.