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Yorodumi- EMDB-3941: Structure of the chloroplast ribosome with chl-RRF and hibernatio... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-3941 | |||||||||||||||
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Title | Structure of the chloroplast ribosome with chl-RRF and hibernation-promoting factor | |||||||||||||||
Map data | ||||||||||||||||
Sample |
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Function / homology | Function and homology information plastid small ribosomal subunit / plastid translation / negative regulation of translational elongation / mitochondrial large ribosomal subunit / mitochondrial small ribosomal subunit / mitochondrial translation / chloroplast stroma / plastid / ribosomal small subunit binding / chloroplast ...plastid small ribosomal subunit / plastid translation / negative regulation of translational elongation / mitochondrial large ribosomal subunit / mitochondrial small ribosomal subunit / mitochondrial translation / chloroplast stroma / plastid / ribosomal small subunit binding / chloroplast / DNA-templated transcription termination / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / transferase activity / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / response to antibiotic / mRNA binding / mitochondrion / RNA binding Similarity search - Function | |||||||||||||||
Biological species | Spinacia oleracea (spinach) / Spinach (spinach) | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||||||||
Authors | Perez Borema A / Aibara S / Paul B / Tobiasson V / Kimanius D / Forsberg BO / Wallden K / Lindahl E / Amunts A | |||||||||||||||
Funding support | Sweden, 4 items
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Citation | Journal: Nat Plants / Year: 2018 Title: Structure of the chloroplast ribosome with chl-RRF and hibernation-promoting factor. Authors: Annemarie Perez Boerema / Shintaro Aibara / Bijoya Paul / Victor Tobiasson / Dari Kimanius / Björn O Forsberg / Karin Wallden / Erik Lindahl / A Amunts / Abstract: Oxygenic photosynthesis produces oxygen and builds a variety of organic compounds, changing the chemistry of the air, the sea and fuelling the food chain on our planet. The photochemical reactions ...Oxygenic photosynthesis produces oxygen and builds a variety of organic compounds, changing the chemistry of the air, the sea and fuelling the food chain on our planet. The photochemical reactions underpinning this process in plants take place in the chloroplast. Chloroplasts evolved ~1.2 billion years ago from an engulfed primordial diazotrophic cyanobacterium, and chlororibosomes are responsible for synthesis of the core proteins driving photochemical reactions. Chlororibosomal activity is spatiotemporally coupled to the synthesis and incorporation of functionally essential co-factors, implying the presence of chloroplast-specific regulatory mechanisms and structural adaptation of the chlororibosome. Despite recent structural information, some of these aspects remained elusive. To provide new insights into the structural specialities and evolution, we report a comprehensive analysis of the 2.9-3.1 Å resolution electron cryo-microscopy structure of the spinach chlororibosome in complex with its recycling factor and hibernation-promoting factor. The model reveals a prominent channel extending from the exit tunnel to the chlororibosome exterior, structural re-arrangements that lead to increased surface area for translocon binding, and experimental evidence for parallel and convergent evolution of chloro- and mitoribosomes. | |||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_3941.map.gz | 32 MB | EMDB map data format | |
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Header (meta data) | emd-3941-v30.xml emd-3941.xml | 70.3 KB 70.3 KB | Display Display | EMDB header |
Images | emd_3941.png | 149.4 KB | ||
Masks | emd_3941_msk_1.map | 282.6 MB | Mask map | |
Others | emd_3941_additional.map.gz emd_3941_half_map_1.map.gz emd_3941_half_map_2.map.gz | 224 MB 225.2 MB 225.1 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-3941 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-3941 | HTTPS FTP |
-Validation report
Summary document | emd_3941_validation.pdf.gz | 445.6 KB | Display | EMDB validaton report |
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Full document | emd_3941_full_validation.pdf.gz | 444.7 KB | Display | |
Data in XML | emd_3941_validation.xml.gz | 13.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-3941 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-3941 | HTTPS FTP |
-Related structure data
Related structure data | 6eriMC 3942C 3943C C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_3941.map.gz / Format: CCP4 / Size: 282.6 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: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_3941_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: #1
File | emd_3941_additional.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_3941_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Supplemental map: emd 3941 half map 2.map
File | emd_3941_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Chloroplast ribosome in complex with RRF
+Supramolecule #1: Chloroplast ribosome in complex with RRF
+Macromolecule #1: 23S ribosomal RNA
+Macromolecule #2: 4.5S ribosomal RNA
+Macromolecule #32: 5S ribosomal RNA
+Macromolecule #34: 16S ribosomal RNA
+Macromolecule #3: 50S ribosomal protein L2, chloroplastic
+Macromolecule #4: 50S ribosomal protein L3, chloroplastic
+Macromolecule #5: 50S ribosomal protein L4, chloroplastic
+Macromolecule #6: 50S ribosomal protein L5, chloroplastic
+Macromolecule #7: 50S ribosomal protein L6, chloroplastic
+Macromolecule #8: 50S ribosomal protein L9, chloroplastic
+Macromolecule #9: 50S ribosomal protein L13, chloroplastic
+Macromolecule #10: 50S ribosomal protein L14, chloroplastic
+Macromolecule #11: 50S ribosomal protein L15, chloroplastic
+Macromolecule #12: 50S ribosomal protein L16, chloroplastic
+Macromolecule #13: 50S ribosomal protein L17, chloroplastic
+Macromolecule #14: 50S ribosomal protein L18, chloroplastic
+Macromolecule #15: 50S ribosomal protein L19, chloroplastic
+Macromolecule #16: 50S ribosomal protein L20, chloroplastic
+Macromolecule #17: 50S ribosomal protein L21, chloroplastic
+Macromolecule #18: 50S ribosomal protein L22, chloroplastic
+Macromolecule #19: 50S ribosomal protein L23, chloroplastic
+Macromolecule #20: 50S ribosomal protein L24, chloroplastic
+Macromolecule #21: 50S ribosomal protein L27, chloroplastic
+Macromolecule #22: 50S ribosomal protein L28, chloroplastic
+Macromolecule #23: 50S ribosomal protein L29, chloroplastic
+Macromolecule #24: 50S ribosomal protein L31, chloroplastic
+Macromolecule #25: 50S ribosomal protein L32, chloroplastic
+Macromolecule #26: 50S ribosomal protein L33, chloroplastic
+Macromolecule #27: 50S ribosomal protein L34, chloroplastic
+Macromolecule #28: 50S ribosomal protein L35, chloroplastic
+Macromolecule #29: 50S ribosomal protein L36, chloroplastic
+Macromolecule #30: 50S ribosomal protein 6, chloroplastic
+Macromolecule #31: 50S ribosomal protein 5 alpha, chloroplastic
+Macromolecule #33: Ribosome-recycling factor, chloroplastic
+Macromolecule #35: 30S ribosomal protein S2, chloroplastic
+Macromolecule #36: 30S ribosomal protein S3, chloroplastic
+Macromolecule #37: 30S ribosomal protein S4, chloroplastic
+Macromolecule #38: 30S ribosomal protein S5, chloroplastic
+Macromolecule #39: 30S ribosomal protein S6 alpha, chloroplastic
+Macromolecule #40: 30S ribosomal protein S7, chloroplastic
+Macromolecule #41: 30S ribosomal protein S8, chloroplastic
+Macromolecule #42: 30S ribosomal protein S9, chloroplastic
+Macromolecule #43: 30S ribosomal protein S10 alpha, chloroplastic
+Macromolecule #44: 30S ribosomal protein S11, chloroplastic
+Macromolecule #45: 30S ribosomal protein S12, chloroplastic
+Macromolecule #46: 30S ribosomal protein S13, chloroplastic
+Macromolecule #47: 30S ribosomal protein S14, chloroplastic
+Macromolecule #48: 30S ribosomal protein S15, chloroplastic
+Macromolecule #49: 30S ribosomal protein S16, chloroplastic
+Macromolecule #50: 30S ribosomal protein S17, chloroplastic
+Macromolecule #51: 30S ribosomal protein S18, chloroplastic
+Macromolecule #52: 30S ribosomal protein S19, chloroplastic
+Macromolecule #53: 30S ribosomal protein S20, chloroplastic
+Macromolecule #54: 30S ribosomal protein S21, chloroplastic
+Macromolecule #55: Ribosome-binding factor PSRP1, chloroplastic
+Macromolecule #56: 30S ribosomal protein S31, chloroplastic
+Macromolecule #57: bS1c
+Macromolecule #58: MAGNESIUM ION
+Macromolecule #59: ZINC ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: COUNTING / Average electron dose: 4.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.0 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 130300 |
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Initial angle assignment | Type: PROJECTION MATCHING |
Final angle assignment | Type: PROJECTION MATCHING |
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: AB INITIO MODEL |
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Output model | PDB-6eri: |