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Yorodumi- EMDB-52056: Cryo-EM structure of photosystem II C2S2M2L2 supercomplex from th... -
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Basic information
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| Title | Cryo-EM structure of photosystem II C2S2M2L2 supercomplex from the green alga Chlorella ohadii | |||||||||||||||||||||
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Keywords | supercomplex / photosynthesis / chlorophyll / algae / MEMBRANE PROTEIN | |||||||||||||||||||||
| Function / homology | Function and homology informationchloroplast thylakoid / eukaryotic translation initiation factor 2 complex / photosynthesis, light harvesting / photosystem II oxygen evolving complex / oxygen evolving activity / photosystem II stabilization / photosystem II reaction center / photosystem II / eukaryotic 48S preinitiation complex / transcription factor TFIIA complex ...chloroplast thylakoid / eukaryotic translation initiation factor 2 complex / photosynthesis, light harvesting / photosystem II oxygen evolving complex / oxygen evolving activity / photosystem II stabilization / photosystem II reaction center / photosystem II / eukaryotic 48S preinitiation complex / transcription factor TFIIA complex / oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor / photosynthetic electron transport chain / photosystem I / photosystem II / response to herbicide / extrinsic component of membrane / chlorophyll binding / photosynthetic electron transport in photosystem II / phosphate ion binding / chloroplast thylakoid membrane / photosynthesis, light reaction / photosynthesis / translation initiation factor activity / cell redox homeostasis / transcription initiation at RNA polymerase II promoter / ribosome binding / electron transfer activity / protein stabilization / iron ion binding / heme binding / calcium ion binding / RNA binding / metal ion binding Similarity search - Function | |||||||||||||||||||||
| Biological species | Chlorella ohadii (plant) | |||||||||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.95 Å | |||||||||||||||||||||
Authors | Kopecny D / Kouril R / Ardhad R / Skalidis I / Kastritis P | |||||||||||||||||||||
| Funding support | Czech Republic, Germany, European Union, 6 items
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Citation | Journal: Nature Communications / Year: 2025Title: Cryo-EM structure of photosystem II supercomplex from Chlorella ohadii, a green microalga with extreme phototolerance Authors: Arshad R / Skalidis I / Kopecny D / Brabencova S / Opatikova M / Ilik P / Pospisil P / Hamdi F / Zeljkovic SC / Kopecna M / Roudnicky P / Lazar D / Elias E / Croce R / Kastritis P / Kouril R | |||||||||||||||||||||
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_52056.map.gz | 398.6 MB | EMDB map data format | |
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| Header (meta data) | emd-52056-v30.xml emd-52056.xml | 62 KB 62 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_52056_fsc.xml | 15.8 KB | Display | FSC data file |
| Images | emd_52056.png | 121.2 KB | ||
| Filedesc metadata | emd-52056.cif.gz | 13 KB | ||
| Others | emd_52056_half_map_1.map.gz emd_52056_half_map_2.map.gz | 390.6 MB 390.6 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-52056 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-52056 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9hd7MC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_52056.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.947 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_52056_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_52056_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : Photosystem II supercomplex C2S2M2L2
+Supramolecule #1: Photosystem II supercomplex C2S2M2L2
+Supramolecule #2: Photosystem II core complex (C2)
+Macromolecule #1: Chlorophyll a-b binding protein Lhcbm-I
+Macromolecule #2: Chlorophyll a-b binding protein, chloroplastic
+Macromolecule #3: Chlorophyll a-b binding protein, chloroplastic
+Macromolecule #4: Chloroplast photosystem II 10 kDa protein
+Macromolecule #5: Chlorophyll a-b binding protein, chloroplastic
+Macromolecule #6: Photosystem II protein D1
+Macromolecule #7: Photosystem II CP47 reaction center protein
+Macromolecule #8: Photosystem II CP43 reaction center protein
+Macromolecule #9: Photosystem II D2 protein
+Macromolecule #10: Cytochrome b559 subunit alpha
+Macromolecule #11: Cytochrome b559 subunit beta
+Macromolecule #12: Photosystem II reaction center protein H
+Macromolecule #13: Photosystem II reaction center protein I
+Macromolecule #14: Photosystem II reaction center protein J
+Macromolecule #15: Photosystem II reaction center protein K
+Macromolecule #16: Photosystem II reaction center protein L
+Macromolecule #17: Photosystem II reaction center protein M
+Macromolecule #18: Chloroplast oxygen-evolving enhancer protein 1b (PsbO)
+Macromolecule #19: PWWP domain-containing protein
+Macromolecule #20: Chloroplast oxygen-evolving enhancer protein 3
+Macromolecule #21: Chlorophyll a-b binding protein, chloroplastic
+Macromolecule #22: Chlorophyll a-b binding protein, chloroplastic
+Macromolecule #23: Photosystem II reaction center protein T
+Macromolecule #24: Chloroplast PsbY
+Macromolecule #25: Photosystem II reaction center protein Psb30
+Macromolecule #26: PSII 6.1 kDa protein
+Macromolecule #27: Photosystem II reaction center protein X (PsbX)
+Macromolecule #28: Chlorophyll a-b binding protein, chloroplastic
+Macromolecule #29: Photosystem II reaction center protein Z
+Macromolecule #30: CHLOROPHYLL B
+Macromolecule #31: CHLOROPHYLL A
+Macromolecule #32: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
+Macromolecule #33: (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL
+Macromolecule #34: (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY...
+Macromolecule #35: (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BE...
+Macromolecule #36: 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE
+Macromolecule #37: CA-MN4-O5 CLUSTER
+Macromolecule #38: PHEOPHYTIN A
+Macromolecule #39: BETA-CAROTENE
+Macromolecule #40: 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
+Macromolecule #41: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
+Macromolecule #42: 2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,...
+Macromolecule #43: ALPHA-LINOLENIC ACID
+Macromolecule #44: STEARIC ACID
+Macromolecule #45: CHLORIDE ION
+Macromolecule #46: DIGALACTOSYL DIACYL GLYCEROL (DGDG)
+Macromolecule #47: FE (II) ION
+Macromolecule #48: BICARBONATE ION
+Macromolecule #49: PROTOPORPHYRIN IX CONTAINING FE
+Macromolecule #50: PALMITOLEIC ACID
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 3.0 mg/mL | ||||||||
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| Buffer | pH: 6.5 Component:
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| Grid | Model: Quantifoil R2/1 / Material: COPPER / Mesh: 200 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 25 sec. / Pretreatment - Pressure: 0.04 kPa | ||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 279 K / Instrument: FEI VITROBOT MARK IV | ||||||||
| Details | C2S2M2L2 PSII-supercomplex purified by the sucrose density gradient. |
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Electron microscopy
| Microscope | TFS GLACIOS |
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| Software | Name: EPU (ver. 3.3) |
| Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 90.0 e/Å2 |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.5 µm |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
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Image processing
-Atomic model buiding 1
| Initial model |
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| Refinement | Space: REAL / Protocol: AB INITIO MODEL | |||||||||
| Output model | ![]() PDB-9hd7: |
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About Yorodumi



Keywords
Chlorella ohadii (plant)
Authors
Czech Republic,
Germany, European Union, 6 items
Citation









Z (Sec.)
Y (Row.)
X (Col.)























































FIELD EMISSION GUN


