J Biol Inorg Chem (2011) 16:209–215 DOI 10.1007/s00775-010-0717-z ; In this work it is demonstrated that the characterization of c-type haem containing proteins by electrochemical techniques needs to be cautiously performed when using pyrolytic graphite electrodes. An altered form of the cytochromes, which has a redox potential 300 mV lower than that of the native state and displays peroxidatic activity, can b...
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