一种新的光合色素“P430”：其作为光系统I原初电子受体的可能作用。
A new photosynthetic pigment, "P430": its possible role as the priary electron acceptor of photosystem I.
作者信息
Hiyama T, Ke B
出版信息
Proc Natl Acad Sci U S A. 1971 May;68(5):1010-3. doi: 10.1073/pnas.68.5.1010.
Abstract
The technique of flash kinetic spectrophotometry was used to demonstrate a broad absorption band around 430 nm, which was kinetically different from P700, in several photosystem-I particles from spinach and blue-green algae. The component represented by this absorption band, designated as "P430", was bleached as fast as P700. Its recovery in the dark was accelerated by ferredoxin and by various artificial electron acceptors with redox potentials as low as -521 mV. The recovery kinetics have been demonstrated to be identical to those of a concomitant reduction of several of the artificial electron acceptors used. Tentatively, "P430" has been proposed as a possible primary electron acceptor of photosystem I.
摘要
采用闪光动力学分光光度法技术，在来自菠菜和蓝藻的几个光系统I颗粒中，证明了在430nm附近有一个宽吸收带，其动力学特性与P700不同。由该吸收带代表的组分，命名为“P430”，其漂白速度与P700一样快。铁氧还蛋白和各种氧化还原电位低至-521mV的人工电子受体可加速其在黑暗中的恢复。已证明恢复动力学与所使用的几种人工电子受体的伴随还原动力学相同。初步提出“P430”可能是光系统I的初级电子受体。
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9
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本文引用的文献
1
[ANALYSIS OF PHOTOSYNTHESIS WITH A FLASH LIGHT. I. THE PHOTOOXIDATION OF CHLOROPHYLL-A1-430-703].
Z Naturforsch B. 1964 Aug;19:693-707.
2
LIGHT-INDUCED RAPID ABSORPTION CHANGES DURING PHOTOSYNTHESIS. V. DIGITONIN-TREATED CHLOROPLASTS.
Biochim Biophys Acta. 1964 Sep 25;88:297-303. doi: 10.1016/0926-6577(64)90185-8.
3
The reducing power generated in photoact I of photosynthesis.
Biochim Biophys Acta. 1965 Nov 29;109(2):347-56. doi: 10.1016/0926-6585(65)90162-7.
4
A fraction from Anabaena variabilis enriched in the reaction center chlorophyll P700.
Biochim Biophys Acta. 1969 Jun 24;180(2):334-46. doi: 10.1016/0005-2728(69)90118-2.
5
Properties and structure of fractions prepared from Anabaena variabilis by the action Triton X-100.
Biochim Biophys Acta. 1969 Feb 25;172(2):216-29. doi: 10.1016/0005-2728(69)90065-6.
6
An optical absorption change that could be due to reduction of the primary photochemical electron acceptor in photosynthetic reaction centers.
Biochem Biophys Res Commun. 1970;39(6):1114-9. doi: 10.1016/0006-291x(70)90674-1.
7
Oxidative and photosynthetic phosphorylation mechanisms.
Science. 1970 Jan 2;167(3914):25-30. doi: 10.1126/science.167.3914.25.
8
Ferredoxin and photosynthesis.
Science. 1965 Sep 24;149(3691):1460-70. doi: 10.1126/science.149.3691.1460.
9
Pteridines and the function of the photosynthetic reaction center.
Proc Natl Acad Sci U S A. 1969 Aug;63(4):1311-8. doi: 10.1073/pnas.63.4.1311.
10
The photoreduction of spinach ferredoxin in the presence of porphyrin and an electron donor.
Proc Natl Acad Sci U S A. 1967 Dec;58(6):2445-50. doi: 10.1073/pnas.58.6.2445.
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