低浓度一氧化碳对普通脱硫弧菌周质氢化酶电子顺磁共振谱的可逆影响。
A reversible effect of low carbon monoxide concentrations on the EPR spectra of the periplasmic hydrogenase from Desulfovibrio vulgaris.
作者信息
Patil D S, Czechowski M H, Huynh B H, LeGall J, Peck H D, DerVartanian D V
出版信息
Biochem Biophys Res Commun. 1986 Jun 30;137(3):1086-93. doi: 10.1016/0006-291x(86)90336-0.
PMID:3015136
Abstract
The effect of low concentrations of CO (0.93 - 5.58 microM) on the EPR spectrum of the periplasmic non-heme iron hydrogenase from D. vulgaris has been investigated. The "g = 2.06" EPR signal is maximally induced (0.94 spin/molecule) at 46.5 microM CO and partial induction of the EPR signal could be observed at 0.93 microM CO. This effect is reversed by removal of the CO or irradiation of the hydrogenase with white light.
摘要
研究了低浓度一氧化碳（0.93 - 5.58微摩尔）对普通脱硫弧菌周质非血红素铁氢化酶电子顺磁共振（EPR）谱的影响。在46.5微摩尔一氧化碳时，“g = 2.06”的EPR信号被最大程度诱导（0.94自旋/分子），在0.93微摩尔一氧化碳时可观察到EPR信号的部分诱导。去除一氧化碳或用白光照射氢化酶可使这种效应逆转。
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