EMDB EMD-9918

Single particle reconstruction
2.37Å resolution

Cryo-EM structure of the tetrameric photosystem I from a heterocyst-forming cyanobacterium Anabaena sp. PCC7120

Map released:
Overview of EMD-9918
Source organism: Nostoc sp. PCC 7120 [103690]
Fitted atomic model: 6k61
Primary publication:
Cryo-EM structure of the tetrameric photosystem I from a heterocyst-forming cyanobacterium Anabaena sp. PCC7120
Zheng L, Li Y, Li X, Zhong Q, Li N, Zhang K, Zhang Y, Chu H, Ma C, Li G, Zhao J, Gao N
Nat.Plants - (2019)

Function and Biology Details

Sample name: Photosystem I complex of cyanobacterium Anabaena sp. PCC 7120
Cellular component: Photosystem I complex of cyanobacterium Anabaena sp. PCC 7120
Ligands: CHLOROPHYLL A ISOMER, CHLOROPHYLL A, PHYLLOQUINONE, IRON/SULFUR CLUSTER, BETA-CAROTENE, 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE, 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL, 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
Proteins: Photosystem I P700 chlorophyll a apoprotein A1, Photosystem I 4.8 kDa protein, Photosystem I P700 chlorophyll a apoprotein A2 1, Photosystem I iron-sulfur center, Photosystem I reaction center subunit II, Photosystem I reaction center subunit IV, Photosystem I reaction center subunit III, Photosystem I reaction center subunit IX, Photosystem I reaction center subunit PsaK 1, Photosystem I reaction center subunit VIII, Photosystem I reaction center subunit XI, Photosystem I reaction center subunit XII

Experimental Information Details

Resolution: 2.37Å
Resolution method: FSC 0.143 CUT-OFF
Applied symmetry: C2
Microscope: FEI TITAN KRIOS
Detector: GATAN K2 SUMMIT (4k x 4k)