Mn4Ca cluster in photosynthesis: where and how water is oxidized to dioxygen.
Mn4Ca cluster in photosynthesis: where and how water is oxidized to dioxygen.
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DOI:
10.1021/cr4004874
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发表时间:
2014-04-23
期刊:
影响因子:
62.1
通讯作者:
Yachandra, Vittal
中科院分区:
文献类型:
--
作者:
Yano, Junko;Yachandra, Vittal
Oxygen, which supports all aerobic life, is produced by photosynthetic water oxidation in plants, algae, and cyanobacteria. The water-oxidation reaction probably first appeared in nature∼ 3 billion years ago in the precursors to present-day cyanobacteria, although the exact timing is not yet entirely clear. 1− 5 A key component in the appearance of oxygenic photosynthesis was a metal complex that could store oxidizing equivalents to facilitate the four-electron oxidation of two water molecules to dioxygen, meanwhile making the electrons available for the reductive carbon-fixing reactions required for sustaining life. 6− 8 This metal complex involved in oxygenic photosynthesis, the oxygen-evolving complex (OEC), consists of an oxo-bridged structure with four Mn atoms and one Ca atom. No variations have been observed so far among oxygenic photosynthetic organisms through higher plants and algae back to cyanobacteria, which represents the earliest oxygenic photosynthetic organisms. Oxygen itself is the byproduct of the photosynthetic water oxidation reaction shown in eq 1:
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DOI:
10.1126/science.1217737
发表时间:
2012-07-20
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Boutet S;Lomb L;Williams GJ;Barends TR;Aquila A;Doak RB;Weierstall U;DePonte DP;Steinbrener J;Shoeman RL;Messerschmidt M;Barty A;White TA;Kassemeyer S;Kirian RA;Seibert MM;Montanez PA;Kenney C;Herbst R;Hart P;Pines J;Haller G;Gruner SM;Philipp HT;Tate MW;Hromalik M;Koerner LJ;van Bakel N;Morse J;Ghonsalves W;Arnlund D;Bogan MJ;Caleman C;Fromme R;Hampton CY;Hunter MS;Johansson LC;Katona G;Kupitz C;Liang M;Martin AV;Nass K;Redecke L;Stellato F;Timneanu N;Wang D;Zatsepin NA;Schafer D;Defever J;Neutze R;Fromme P;Spence JC;Chapman HN;Schlichting I
通讯作者:
Schlichting I
影响因子:
4.4
作者:
Bergmann, U;Bendix, J;Cramer, SP
通讯作者:
Cramer, SP
影响因子:
64.8
作者:
Allen, John F.;Martin, William
通讯作者:
Martin, William
影响因子:
2.8
作者:
Bergmann, U;Horne, CR;Cramer, SP
通讯作者:
Cramer, SP
影响因子:
13.8
作者:
Blankenship, RE;Hartman, H
通讯作者:
Hartman, H