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Yorodumi- EMDB-24120: Elongating 70S ribosome complex in a classical pre-translocation ... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-24120 | |||||||||
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Title | Elongating 70S ribosome complex in a classical pre-translocation (PRE-C) conformation | |||||||||
Map data | Post-processed Map | |||||||||
Sample |
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Function / homology | Function and homology information negative regulation of cytoplasmic translational initiation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation / translational termination ...negative regulation of cytoplasmic translational initiation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation / translational termination / DnaA-L2 complex / four-way junction DNA binding / translation repressor activity / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation / regulation of mRNA stability / mRNA regulatory element binding translation repressor activity / ribosome assembly / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / transcription elongation factor complex / regulation of DNA-templated transcription elongation / DNA endonuclease activity / response to reactive oxygen species / transcription antitermination / regulation of cell growth / translational initiation / DNA-templated transcription termination / maintenance of translational fidelity / response to radiation / mRNA 5'-UTR binding / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosome biogenesis / ribosome binding / regulation of translation / ribosomal small subunit assembly / large ribosomal subunit rRNA binding / 5S rRNA binding / transferase activity / small ribosomal subunit / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / molecular adaptor activity / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / DNA binding / RNA binding / zinc ion binding / membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Escherichia coli K-12 (bacteria) / Escherichia coli BL21 (bacteria) / Escherichia coli (strain K12) (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.33 Å | |||||||||
Authors | Rundlet EJ / Holm M / Schacherl M / Natchiar SK / Altman RB / Spahn CMT / Myasnikov AG / Blanchard SC | |||||||||
Citation | Journal: Nature / Year: 2021 Title: Structural basis of early translocation events on the ribosome. Authors: Emily J Rundlet / Mikael Holm / Magdalena Schacherl / S Kundhavai Natchiar / Roger B Altman / Christian M T Spahn / Alexander G Myasnikov / Scott C Blanchard / Abstract: Peptide-chain elongation during protein synthesis entails sequential aminoacyl-tRNA selection and translocation reactions that proceed rapidly (2-20 per second) and with a low error rate (around ...Peptide-chain elongation during protein synthesis entails sequential aminoacyl-tRNA selection and translocation reactions that proceed rapidly (2-20 per second) and with a low error rate (around 10 to 10 at each step) over thousands of cycles. The cadence and fidelity of ribosome transit through mRNA templates in discrete codon increments is a paradigm for movement in biological systems that must hold for diverse mRNA and tRNA substrates across domains of life. Here we use single-molecule fluorescence methods to guide the capture of structures of early translocation events on the bacterial ribosome. Our findings reveal that the bacterial GTPase elongation factor G specifically engages spontaneously achieved ribosome conformations while in an active, GTP-bound conformation to unlock and initiate peptidyl-tRNA translocation. These findings suggest that processes intrinsic to the pre-translocation ribosome complex can regulate the rate of protein synthesis, and that energy expenditure is used later in the translocation mechanism than previously proposed. | |||||||||
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_24120.map.gz | 19.9 MB | EMDB map data format | |
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Header (meta data) | emd-24120-v30.xml emd-24120.xml | 86.4 KB 86.4 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_24120_fsc.xml | 18.1 KB | Display | FSC data file |
Images | emd_24120.png | 60 KB | ||
Others | emd_24120_additional_1.map.gz emd_24120_half_map_1.map.gz emd_24120_half_map_2.map.gz | 217.9 MB 410.9 MB 410.9 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-24120 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-24120 | HTTPS FTP |
-Validation report
Summary document | emd_24120_validation.pdf.gz | 727 KB | Display | EMDB validaton report |
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Full document | emd_24120_full_validation.pdf.gz | 726.6 KB | Display | |
Data in XML | emd_24120_validation.xml.gz | 27.3 KB | Display | |
Data in CIF | emd_24120_validation.cif.gz | 35.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24120 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24120 | HTTPS FTP |
-Related structure data
Related structure data | 7n1pMC 7n2cC 7n2uC 7n2vC 7n30C 7n31C M: atomic model generated by this map C: citing same article (ref.) |
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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_24120.map.gz / Format: CCP4 / Size: 729 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Post-processed Map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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
-Additional map: Masked Refinement map
File | emd_24120_additional_1.map | ||||||||||||
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Annotation | Masked Refinement map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half Map
File | emd_24120_half_map_1.map | ||||||||||||
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Annotation | Half Map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half Map
File | emd_24120_half_map_2.map | ||||||||||||
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Annotation | Half Map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Ribosome
+Supramolecule #1: Ribosome
+Supramolecule #2: Ribosome
+Supramolecule #3: tRNA molecules
+Supramolecule #4: mRNA
+Macromolecule #1: 16S rRNA
+Macromolecule #22: mRNA
+Macromolecule #23: 23S rRNA
+Macromolecule #24: 5S rRNA
+Macromolecule #56: tRNA
+Macromolecule #58: tRNA
+Macromolecule #2: 30S ribosomal protein S2
+Macromolecule #3: 30S ribosomal protein S3
+Macromolecule #4: 30S ribosomal protein S4
+Macromolecule #5: 30S ribosomal protein S5
+Macromolecule #6: 30S ribosomal protein S6
+Macromolecule #7: 30S ribosomal protein S7
+Macromolecule #8: 30S ribosomal protein S8
+Macromolecule #9: 30S ribosomal protein S9
+Macromolecule #10: 30S ribosomal protein S10
+Macromolecule #11: 30S ribosomal protein S11
+Macromolecule #12: 30S ribosomal protein S12
+Macromolecule #13: 30S ribosomal protein S13
+Macromolecule #14: 30S ribosomal protein S14
+Macromolecule #15: 30S ribosomal protein S15
+Macromolecule #16: 30S ribosomal protein S16
+Macromolecule #17: 30S ribosomal protein S17
+Macromolecule #18: 30S ribosomal protein S18
+Macromolecule #19: 30S ribosomal protein S19
+Macromolecule #20: 30S ribosomal protein S20
+Macromolecule #21: 30S ribosomal protein S21
+Macromolecule #25: 50S ribosomal protein L2
+Macromolecule #26: 50S ribosomal protein L3
+Macromolecule #27: 50S ribosomal protein L4
+Macromolecule #28: 50S ribosomal protein L5
+Macromolecule #29: 50S ribosomal protein L6
+Macromolecule #30: 50S ribosomal protein L9
+Macromolecule #31: 50S ribosomal protein L10
+Macromolecule #32: 50S ribosomal protein L11
+Macromolecule #33: 50S ribosomal protein L13
+Macromolecule #34: 50S ribosomal protein L14
+Macromolecule #35: 50S ribosomal protein L15
+Macromolecule #36: 50S ribosomal protein L16
+Macromolecule #37: 50S ribosomal protein L17
+Macromolecule #38: 50S ribosomal protein L18
+Macromolecule #39: 50S ribosomal protein L19
+Macromolecule #40: 50S ribosomal protein L20
+Macromolecule #41: 50S ribosomal protein L21
+Macromolecule #42: 50S ribosomal protein L22
+Macromolecule #43: 50S ribosomal protein L23
+Macromolecule #44: 50S ribosomal protein L24
+Macromolecule #45: 50S ribosomal protein L25
+Macromolecule #46: 50S ribosomal protein L27
+Macromolecule #47: 50S ribosomal protein L28
+Macromolecule #48: 50S ribosomal protein L29
+Macromolecule #49: 50S ribosomal protein L30
+Macromolecule #50: 50S ribosomal protein L31
+Macromolecule #51: 50S ribosomal protein L32
+Macromolecule #52: 50S ribosomal protein L33
+Macromolecule #53: 50S ribosomal protein L34
+Macromolecule #54: 50S ribosomal protein L35
+Macromolecule #55: 50S ribosomal protein L36
+Macromolecule #57: Chains: Pp
+Macromolecule #59: 1,4-DIAMINOBUTANE
+Macromolecule #60: MAGNESIUM ION
+Macromolecule #61: ZINC ION
+Macromolecule #62: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #63: SPERMIDINE
+Macromolecule #64: water
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 5.5 mg/mL |
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Buffer | pH: 7.5 |
Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Atmosphere: OTHER |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 283 K / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 87.0 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
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: OTHER |
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Output model | PDB-7n1p: |