[光诱导的过氧化物铁还原酶。I. 与还原型烟酰胺腺嘌呤二核苷酸的反应]
[Photoinduced reduction of ferriperoxidase. I. Reaction with reduced nicotinamide-adenine dinucleotide].
作者信息
Ataullakhanov F I, Zhabotinskiĭ A M
出版信息
Biofizika. 1975 Jul-Aug;20(4):596-601.
PMID:172159
Abstract
Photoinduced reduction of peroxidase with reduced NAD is revealed.; its kinetics is studied. The kinetic scheme of this process is suggested and calculated. It is shown that metastable excited state appears after NAD-N irradiation. This state participated in the reaction with ferriperosidase. It is also shown that the NAD radical which appears in the course of this reaction reduces the peroxidase; the rate constant of this process is (5 +/- 0,5) -10(4) M-1 sec-1.
摘要
揭示了用还原型烟酰胺腺嘌呤二核苷酸（NAD）对过氧化物酶进行光诱导还原；对其动力学进行了研究。提出并计算了该过程的动力学方案。结果表明，NAD-N辐照后会出现亚稳态激发态。该状态参与了与高铁过氧化物酶的反应。还表明，在该反应过程中出现的NAD自由基会还原过氧化物酶；该过程的速率常数为(5±0.5)×10⁴ M⁻¹ s⁻¹。
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