Phycobilisomes supply excitations to both photosystems in a megacomplex in cyanobacteria.
Phycobilisomes supply excitations to both photosystems in a megacomplex in cyanobacteria.
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DOI:
10.1126/science.1242321
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发表时间:
2013-11-29
期刊:
影响因子:
--
通讯作者:
Blankenship RE
中科院分区:
文献类型:
--
作者:
Liu H;Zhang H;Niedzwiedzki DM;Prado M;He G;Gross ML;Blankenship RE
In photosynthetic organisms, photons are captured by light-harvesting antenna complexes, and energy is transferred to reaction centers where photochemical reactions take place. We describe here the isolation and characterization of a fully functional megacomplex composed of a phycobilisome antenna complex and photosystems I and II from the cyanobacterium Synechocystis PCC 6803. A combination of in vivo protein cross-linking, mass spectrometry, and time-resolved spectroscopy indicates that the megacomplex is organized to facilitate energy transfer but not intercomplex electron transfer, which requires diffusible intermediates and the cytochrome b6f complex. The organization provides a basis for understanding how phycobilisomes transfer excitation energy to reaction centers and how the energy balance of two photosystems is achieved, allowing the organism to adapt to varying ecophysiological conditions.
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影响因子:
14.9
作者:
Vizcaíno JA;Côté RG;Csordas A;Dianes JA;Fabregat A;Foster JM;Griss J;Alpi E;Birim M;Contell J;O'Kelly G;Schoenegger A;Ovelleiro D;Pérez-Riverol Y;Reisinger F;Ríos D;Wang R;Hermjakob H
通讯作者:
Hermjakob H
影响因子:
3.1
作者:
Kirilovsky, Diana;Kerfeld, Cheryl A.
通讯作者:
Kerfeld, Cheryl A.
DOI:
10.1016/0167-4838(92)90483-t
发表时间:
1992-06-19
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
--
作者:
MULLINEAUX, CW
通讯作者:
MULLINEAUX, CW
DOI:
10.1073/pnas.87.6.2152
发表时间:
1990-03-01
影响因子:
11.1
作者:
HOUMARD, J;CAPUANO, V;DEMARSAC, NT
通讯作者:
DEMARSAC, NT
影响因子:
64.8
作者:
Jordan, P;Fromme, P;Krauss, N
通讯作者:
Krauss, N