+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-50296 | |||||||||
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Title | 70S Escherichia coli ribosome with P-site initiatior tRNA. | |||||||||
Map data | Post-processed_masked_map | |||||||||
Sample |
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Keywords | Ribosome / 70S / Initiation / fMet | |||||||||
Function / homology | Function and homology information negative regulation of cytoplasmic translational initiation / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis ...negative regulation of cytoplasmic translational initiation / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation / 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 / positive regulation of RNA splicing / 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 BW25113 (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.4 Å | |||||||||
Authors | Koller TO / Wilson DN | |||||||||
Funding support | Germany, 1 items
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Citation | Journal: bioRxiv / Year: 2024 Title: Paenilamicins from the honey bee pathogen are context-specific translocation inhibitors of protein synthesis. Authors: Timm O Koller / Max J Berger / Martino Morici / Helge Paternoga / Timur Bulatov / Adriana Di Stasi / Tam Dang / Andi Mainz / Karoline Raulf / Caillan Crowe-McAuliffe / Marco Scocchi / Mario ...Authors: Timm O Koller / Max J Berger / Martino Morici / Helge Paternoga / Timur Bulatov / Adriana Di Stasi / Tam Dang / Andi Mainz / Karoline Raulf / Caillan Crowe-McAuliffe / Marco Scocchi / Mario Mardirossian / Bertrand Beckert / Nora Vázquez-Laslop / Alexander Mankin / Roderich D Süssmuth / Daniel N Wilson / Abstract: The paenilamicins are a group of hybrid non-ribosomal peptide-polyketide compounds produced by the honey bee pathogen that display activity against Gram-positive pathogens, such as . While ...The paenilamicins are a group of hybrid non-ribosomal peptide-polyketide compounds produced by the honey bee pathogen that display activity against Gram-positive pathogens, such as . While paenilamicins have been shown to inhibit protein synthesis, their mechanism of action has remained unclear. Here, we have determined structures of the paenilamicin PamB2 stalled ribosomes, revealing a unique binding site on the small 30S subunit located between the A- and P-site tRNAs. In addition to providing a precise description of interactions of PamB2 with the ribosome, the structures also rationalize the resistance mechanisms utilized by . We could further demonstrate that PamB2 interferes with the translocation of mRNA and tRNAs through the ribosome during translation elongation, and that this inhibitory activity is influenced by the presence of modifications at position 37 of the A-site tRNA. Collectively, our study defines the paenilamicins as a new class of context-specific translocation inhibitors. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_50296.map.gz | 80.8 MB | EMDB map data format | |
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Header (meta data) | emd-50296-v30.xml emd-50296.xml | 75.6 KB 75.6 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_50296_fsc.xml | 21 KB | Display | FSC data file |
Images | emd_50296.png | 156.4 KB | ||
Filedesc metadata | emd-50296.cif.gz | 14.4 KB | ||
Others | emd_50296_additional_1.map.gz emd_50296_additional_2.map.gz emd_50296_half_map_1.map.gz emd_50296_half_map_2.map.gz | 671.7 MB 772.2 MB 672.5 MB 672.6 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-50296 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-50296 | HTTPS FTP |
-Validation report
Summary document | emd_50296_validation.pdf.gz | 965.9 KB | Display | EMDB validaton report |
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Full document | emd_50296_full_validation.pdf.gz | 965.5 KB | Display | |
Data in XML | emd_50296_validation.xml.gz | 28 KB | Display | |
Data in CIF | emd_50296_validation.cif.gz | 37.7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-50296 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-50296 | HTTPS FTP |
-Related structure data
Related structure data | 9fbvMC 8r6cC 8r8mC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_50296.map.gz / Format: CCP4 / Size: 824 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | Post-processed_masked_map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.8 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: 3D refined map
File | emd_50296_additional_1.map | ||||||||||||
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Annotation | 3D_refined_map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Post-processed map
File | emd_50296_additional_2.map | ||||||||||||
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Annotation | Post-processed_map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 1
File | emd_50296_half_map_1.map | ||||||||||||
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Annotation | Half_map_1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 2
File | emd_50296_half_map_2.map | ||||||||||||
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Annotation | Half_map_2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Escherichia coli 70S Initiation complex with P-site initiator tRN...
+Supramolecule #1: Escherichia coli 70S Initiation complex with P-site initiator tRN...
+Macromolecule #1: Large ribosomal subunit protein bL33
+Macromolecule #2: Large ribosomal subunit protein bL34
+Macromolecule #3: Large ribosomal subunit protein bL35
+Macromolecule #4: Large ribosomal subunit protein bL36A
+Macromolecule #6: Large ribosomal subunit protein uL2
+Macromolecule #7: Large ribosomal subunit protein uL3
+Macromolecule #8: Large ribosomal subunit protein uL4
+Macromolecule #9: Large ribosomal subunit protein uL5
+Macromolecule #10: Large ribosomal subunit protein uL6
+Macromolecule #11: Large ribosomal subunit protein bL9
+Macromolecule #12: Large ribosomal subunit protein uL13
+Macromolecule #13: 50S ribosomal protein L15
+Macromolecule #14: Large ribosomal subunit protein uL16
+Macromolecule #15: Large ribosomal subunit protein bL17
+Macromolecule #16: Large ribosomal subunit protein uL18
+Macromolecule #17: Large ribosomal subunit protein bL19
+Macromolecule #18: Large ribosomal subunit protein bL20
+Macromolecule #19: Large ribosomal subunit protein bL21
+Macromolecule #20: Large ribosomal subunit protein uL22
+Macromolecule #21: Large ribosomal subunit protein uL23
+Macromolecule #22: Large ribosomal subunit protein uL24
+Macromolecule #23: 50S ribosomal protein L25
+Macromolecule #24: Large ribosomal subunit protein bL27
+Macromolecule #25: Large ribosomal subunit protein bL28
+Macromolecule #26: Large ribosomal subunit protein uL29
+Macromolecule #27: Large ribosomal subunit protein uL30
+Macromolecule #28: Large ribosomal subunit protein bL32
+Macromolecule #29: Large ribosomal subunit protein bL31A
+Macromolecule #31: Large ribosomal subunit protein uL14
+Macromolecule #32: 30S ribosomal protein S2
+Macromolecule #33: Small ribosomal subunit protein uS4
+Macromolecule #34: Small ribosomal subunit protein uS5
+Macromolecule #35: 30S ribosomal protein S6, fully modified isoform
+Macromolecule #36: Small ribosomal subunit protein uS8
+Macromolecule #37: Small ribosomal subunit protein uS11
+Macromolecule #38: Small ribosomal subunit protein uS12
+Macromolecule #39: Small ribosomal subunit protein uS15
+Macromolecule #40: 30S ribosomal protein S16
+Macromolecule #41: Small ribosomal subunit protein uS17
+Macromolecule #42: Small ribosomal subunit protein bS18
+Macromolecule #43: 30S ribosomal protein S20
+Macromolecule #44: Small ribosomal subunit protein bS21
+Macromolecule #46: Small ribosomal subunit protein uS3
+Macromolecule #47: 30S ribosomal protein S7
+Macromolecule #48: Small ribosomal subunit protein uS9
+Macromolecule #49: Small ribosomal subunit protein uS10
+Macromolecule #50: Small ribosomal subunit protein uS13
+Macromolecule #51: Small ribosomal subunit protein uS14
+Macromolecule #52: Small ribosomal subunit protein uS19
+Macromolecule #5: 5S ribosomal RNA
+Macromolecule #30: 23S ribosomal RNA
+Macromolecule #45: messenger RNA
+Macromolecule #53: 16S ribosomal RNA
+Macromolecule #54: fMet-tRNA
+Macromolecule #55: ZINC ION
+Macromolecule #56: MAGNESIUM ION
+Macromolecule #57: POTASSIUM ION
+Macromolecule #58: water
-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-PROPANE |
Details | 8 OD/mL of Ribosome |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 0.9 µm / Nominal defocus min: 0.4 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |