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[The temperature dependence of high-resolution 1H NMR spectra of Rhodobacter sphaeroides photosynthetic reaction centres in a temperature range of 25-40 degrees C].

作者信息

Timofeev V P, Knox P P, Zakharova N I, Seĭfullina N Kh, Rubin A B

出版信息

Biofizika. 2004 Sep-Oct;49(5):829-31.

PMID:15526467
Abstract

High-resolution 1H-NMR spectra registered within a temperature range of 25-40 degrees C revealed a nonmonotonous dome-shaped temperature dependence of the ratio between integral NMR signal intensities determined at ppm intervals 2.5-4.5 and 0.2-2.5 with a maximum at 30 degrees C. This may be due to RC structural changes accompanying the temperature rise and accelerating the recombination reaction between oxidized bacteriochlorophyll and reduced primary quinone at temperatures above 30 degrees C.

摘要

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