Hyperthermophilic redox chemistry: a re-evaluation.

Autor: Hagedoorn PL; Wageningen University and Research Centre, Department of Biomolecular Sciences, The Netherlands. peter.leonhagedoorn@epr.bc.wau.nl, Driessen MC, van den Bosch M, Landa I, Hagen WR
Jazyk: angličtina
Zdroj: FEBS letters [FEBS Lett] 1998 Dec 04; Vol. 440 (3), pp. 311-4.
DOI: 10.1016/s0014-5793(98)01466-5
Abstrakt: The redox chemistry of Pyrococcus furiosus rubredoxin and ferredoxin has been studied as a function of temperature in direct voltammetry and in EPR monitored bulk titrations. The Ems of both proteins, measured with direct voltammetry, have a normal (linear) temperature dependence and show no pH dependence. EPR monitoring is not a reliable method to determine the temperature dependence of the Em: upon rapid freezing the proteins take their conformation corresponding to the freezing point of the solution.
Databáze: MEDLINE