Database of articles cited by EMDB/PDB/SASBDB data

Keywords
Structure methods	All X-ray diffraction NMR electron microscopy small angle scattering neutron diffraction fiber diffraction powder diffraction infrared spectroscopy EPR fluorescence transfer theoretical model Hybrid
Author
Journal
IF	>30 >20 >10 >5 all

Title	Structures and organizations of PSI-AcpPCI supercomplexes from red tidal and coral symbiotic photosynthetic dinoflagellates.
Journal, issue, pages	Proc Natl Acad Sci U S A, Vol. 121, Issue 7, Page e2315476121, Year 2024
Publish date	Feb 13, 2024
Authors	Xiaoyi Li / Zhenhua Li / Fangfang Wang / Songhao Zhao / Caizhe Xu / Zhiyuan Mao / Jialin Duan / Yue Feng / Yang Yang / Lili Shen / Guanglei Wang / Yanyan Yang / Long-Jiang Yu / Min Sang / Guangye Han / Xuchu Wang / Tingyun Kuang / Jian-Ren Shen / Wenda Wang /
PubMed Abstract	Marine photosynthetic dinoflagellates are a group of successful phytoplankton that can form red tides in the ocean and also symbiosis with corals. These features are closely related to the ...Marine photosynthetic dinoflagellates are a group of successful phytoplankton that can form red tides in the ocean and also symbiosis with corals. These features are closely related to the photosynthetic properties of dinoflagellates. We report here three structures of photosystem I (PSI)-chlorophylls (Chls) /-peridinin protein complex (PSI-AcpPCI) from two species of dinoflagellates by single-particle cryoelectron microscopy. The crucial PsaA/B subunits of a red tidal dinoflagellate are remarkably smaller and hence losing over 20 pigment-binding sites, whereas its PsaD/F/I/J/L/M/R subunits are larger and coordinate some additional pigment sites compared to other eukaryotic photosynthetic organisms, which may compensate for the smaller PsaA/B subunits. Similar modifications are observed in a coral symbiotic dinoflagellate species, where two additional core proteins and fewer AcpPCIs are identified in the PSI-AcpPCI supercomplex. The antenna proteins AcpPCIs in dinoflagellates developed some loops and pigment sites as a result to accommodate the changed PSI core, therefore the structures of PSI-AcpPCI supercomplex of dinoflagellates reveal an unusual protein assembly pattern. A huge pigment network comprising Chls and and various carotenoids is revealed from the structural analysis, which provides the basis for our deeper understanding of the energy transfer and dissipation within the PSI-AcpPCI supercomplex, as well as the evolution of photosynthetic organisms.
External links	Proc Natl Acad Sci U S A / PubMed:38319970 / PubMed Central
Methods	EM (single particle)
Resolution	2.7 - 2.99 Å
Structure data	36678 8jw0 EMDB-36678, PDB-8jw0: PSI-AcpPCI supercomplex from Amphidinium carterae Method: EM (single particle) / Resolution: 2.9 Å 36742 8jze EMDB-36742, PDB-8jze: PSI-AcpPCI supercomplex from Symbiodinium Method: EM (single particle) / Resolution: 2.99 Å 36743 8jzf EMDB-36743, PDB-8jzf: PSI-AcpPCI supercomplex from Symbiodinium Method: EM (single particle) / Resolution: 2.7 Å
Chemicals	ChemComp-CLA: CHLOROPHYLL A / Chlorophyll a ChemComp-PQN: PHYLLOQUINONE / Phytomenadione ChemComp-LHG: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / phospholipidYM / Phosphatidylglycerol ChemComp-BCR: BETA-CAROTENE / Β-Carotene ChemComp-SF4: IRON/SULFUR CLUSTER / Iron–sulfur cluster ChemComp-LMG: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE ChemComp-DGD: DIGALACTOSYL DIACYL GLYCEROL (DGDG) ChemComp-DD6: (3S,3'R,5R,6S,7cis)-7',8'-didehydro-5,6-dihydro-5,6-epoxy-beta,beta-carotene-3,3'-diol / Diadinoxanthin ChemComp-PID: PERIDININ / Peridinin ChemComp, No image ChemComp-UIX: Unknown entry ChemComp-KC1: Chlorophyll c1 / Chlorophyll c ChemComp-SQD*: 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
Source	amphidinium carterae (eukaryote) symbiodinium (eukaryote)
Keywords	PHOTOSYNTHESIS / Photosysrem I / Dinoflagellate