Structure of the far-red light utilizing photosystem I of Acaryochloris marina.
Structure of the far-red light utilizing photosystem I of Acaryochloris marina.
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DOI:
10.1038/s41467-021-22502-8
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发表时间:
2021-04-20
影响因子:
16.6
通讯作者:
Kashino Y
中科院分区:
文献类型:
--
作者:
Hamaguchi T;Kawakami K;Shinzawa-Itoh K;Inoue-Kashino N;Itoh S;Ifuku K;Yamashita E;Maeda K;Yonekura K;Kashino Y
Acaryochloris marina is one of the cyanobacterial species that can use far-red light to drive photochemical reactions for oxygenic photosynthesis. Here, we report the structure of A. marina photosystem I (PSI) reaction center, determined by cryo-electron microscopy at 2.58 Å resolution. The structure reveals an arrangement of electron carriers and light-harvesting pigments distinct from other type I reaction centers. The paired chlorophyll, or special pair (also referred to as P740 in this case), is a dimer of chlorophyll d and its epimer chlorophyll d′. The primary electron acceptor is pheophytin a, a metal-less chlorin. We show the architecture of this PSI reaction center is composed of 11 subunits and we identify key components that help explain how the low energy yield from far-red light is efficiently utilized for driving oxygenic photosynthesis. Acaryochloris marina photosystem I (PSI) contains chlorophyll d and absorbs light in the far-red region of the spectrum. The structure of A. marina PSI reaction center reveals several unusual features, including pheophytin as the primary electron acceptor.
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影响因子:
4.3
作者:
Cherepanov, Dmitry A.;Shelaev, Ivan, V;Golbeck, John H.
通讯作者:
Golbeck, John H.
影响因子:
15
作者:
Adolphs, Julian;Mueh, Frank;Renger, Thomas
通讯作者:
Renger, Thomas
DOI:
10.1073/pnas.081078898
发表时间:
2001-04-10
影响因子:
11.1
作者:
Guergova-Kuras, M;Boudreaux, B;Redding, K
通讯作者:
Redding, K
DOI:
10.1107/s2059798318006551
发表时间:
2018-06-01
期刊:
Acta crystallographica. Section D, Structural biology
影响因子:
--
作者:
Afonine PV;Poon BK;Read RJ;Sobolev OV;Terwilliger TC;Urzhumtsev A;Adams PD
通讯作者:
Adams PD
影响因子:
64.8
作者:
Jordan, P;Fromme, P;Krauss, N
通讯作者:
Krauss, N