+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-18332 | |||||||||
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Title | B. subtilis ApdA-stalled ribosomal complex | |||||||||
Map data | Postprocessed final map | |||||||||
Sample |
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Keywords | Stalling / Nascent chain / elongation arrest / regulation / RIBOSOME | |||||||||
Function / homology | Function and homology information positive regulation of rRNA processing / nucleoid / rRNA processing / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosomal small subunit assembly / large ribosomal subunit rRNA binding / 5S rRNA binding / transferase activity / small ribosomal subunit ...positive regulation of rRNA processing / nucleoid / rRNA processing / small ribosomal subunit rRNA binding / large ribosomal subunit / 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 / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / response to antibiotic / mRNA binding / DNA binding / RNA binding / zinc ion binding / metal ion binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Amycolatopsis japonica (bacteria) / Bacillus subtilis subsp. subtilis str. 168 (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.3 Å | |||||||||
Authors | Morici M / Wilson DN | |||||||||
Funding support | Germany, 1 items
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Citation | Journal: Nat Commun / Year: 2024 Title: RAPP-containing arrest peptides induce translational stalling by short circuiting the ribosomal peptidyltransferase activity. Authors: Martino Morici / Sara Gabrielli / Keigo Fujiwara / Helge Paternoga / Bertrand Beckert / Lars V Bock / Shinobu Chiba / Daniel N Wilson / Abstract: Arrest peptides containing RAPP (ArgAlaProPro) motifs have been discovered in both Gram-positive and Gram-negative bacteria, where they are thought to regulate expression of important protein ...Arrest peptides containing RAPP (ArgAlaProPro) motifs have been discovered in both Gram-positive and Gram-negative bacteria, where they are thought to regulate expression of important protein localization machinery components. Here we determine cryo-EM structures of ribosomes stalled on RAPP arrest motifs in both Bacillus subtilis and Escherichia coli. Together with molecular dynamics simulations, our structures reveal that the RAPP motifs allow full accommodation of the A-site tRNA, but prevent the subsequent peptide bond from forming. Our data support a model where the RAP in the P-site interacts and stabilizes a single hydrogen atom on the Pro-tRNA in the A-site, thereby preventing an optimal geometry for the nucleophilic attack required for peptide bond formation to occur. This mechanism to short circuit the ribosomal peptidyltransferase activity is likely to operate for the majority of other RAPP-like arrest peptides found across diverse bacterial phylogenies. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_18332.map.gz | 55.2 MB | EMDB map data format | |
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Header (meta data) | emd-18332-v30.xml emd-18332.xml | 68.9 KB 68.9 KB | Display Display | EMDB header |
Images | emd_18332.png | 42.6 KB | ||
Filedesc metadata | emd-18332.cif.gz | 13.1 KB | ||
Others | emd_18332_additional_1.map.gz emd_18332_additional_2.map.gz emd_18332_half_map_1.map.gz emd_18332_half_map_2.map.gz | 224.9 MB 100.1 MB 225.3 MB 225.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-18332 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-18332 | HTTPS FTP |
-Validation report
Summary document | emd_18332_validation.pdf.gz | 1017 KB | Display | EMDB validaton report |
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Full document | emd_18332_full_validation.pdf.gz | 1016.6 KB | Display | |
Data in XML | emd_18332_validation.xml.gz | 16.4 KB | Display | |
Data in CIF | emd_18332_validation.cif.gz | 19.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-18332 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-18332 | HTTPS FTP |
-Related structure data
Related structure data | 8qcqMC 8qbtC M: atomic model generated by this map C: citing same article (ref.) |
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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_18332.map.gz / Format: CCP4 / Size: 282.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | Postprocessed final map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.82 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: Preprocessed map
File | emd_18332_additional_1.map | ||||||||||||
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Annotation | Preprocessed map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Filtered 3D-refined map based on local resolution as...
File | emd_18332_additional_2.map | ||||||||||||
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Annotation | Filtered 3D-refined map based on local resolution as calculated by Bsoft | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half-map 1
File | emd_18332_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_18332_half_map_2.map | ||||||||||||
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Annotation | Half-map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : B. subtilis ApdA-stalled ribosomal complex
+Supramolecule #1: B. subtilis ApdA-stalled ribosomal complex
+Macromolecule #1: 50S ribosomal protein L32
+Macromolecule #2: 50S ribosomal protein L33 1
+Macromolecule #3: 50S ribosomal protein L34
+Macromolecule #4: 50S ribosomal protein L35
+Macromolecule #5: 50S ribosomal protein L36
+Macromolecule #6: Large ribosomal subunit protein bL31-A
+Macromolecule #9: 50S ribosomal protein L2
+Macromolecule #10: 50S ribosomal protein L3
+Macromolecule #11: 50S ribosomal protein L4
+Macromolecule #12: 50S ribosomal protein L5
+Macromolecule #13: Large ribosomal subunit protein uL6
+Macromolecule #14: 50S ribosomal protein L13
+Macromolecule #15: 50S ribosomal protein L14
+Macromolecule #16: 50S ribosomal protein L15
+Macromolecule #17: 50S ribosomal protein L16
+Macromolecule #18: 50S ribosomal protein L17
+Macromolecule #19: 50S ribosomal protein L18
+Macromolecule #20: 50S ribosomal protein L19
+Macromolecule #21: Large ribosomal subunit protein bL20
+Macromolecule #22: 50S ribosomal protein L21
+Macromolecule #23: 50S ribosomal protein L22
+Macromolecule #24: Large ribosomal subunit protein uL23
+Macromolecule #25: 50S ribosomal protein L24
+Macromolecule #26: Large ribosomal subunit protein bL27
+Macromolecule #27: 50S ribosomal protein L28
+Macromolecule #28: 50S ribosomal protein L29
+Macromolecule #29: Large ribosomal subunit protein uL30
+Macromolecule #31: 30S ribosomal protein S5
+Macromolecule #32: 30S ribosomal protein S11
+Macromolecule #33: 30S ribosomal protein S12
+Macromolecule #34: 30S ribosomal protein S15
+Macromolecule #35: 30S ribosomal protein S17
+Macromolecule #36: 30S ribosomal protein S20
+Macromolecule #39: Small ribosomal subunit protein uS3
+Macromolecule #40: Small ribosomal subunit protein uS7
+Macromolecule #41: 30S ribosomal protein S9
+Macromolecule #42: 30S ribosomal protein S10
+Macromolecule #43: 30S ribosomal protein S13
+Macromolecule #44: 30S ribosomal protein S14
+Macromolecule #45: 30S ribosomal protein S19
+Macromolecule #46: 30S ribosomal protein S8
+Macromolecule #47: 30S ribosomal protein S18
+Macromolecule #48: 30S ribosomal protein S6
+Macromolecule #49: ApdA nascent chain
+Macromolecule #7: 23S rRNA
+Macromolecule #8: 5S rRNA
+Macromolecule #30: 16S rRNA
+Macromolecule #37: Pro-tRNA
+Macromolecule #38: mRNA
+Macromolecule #50: ZINC ION
+Macromolecule #51: MAGNESIUM ION
+Macromolecule #52: POTASSIUM ION
+Macromolecule #53: PROLINE
+Macromolecule #54: 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 |
-Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 75.6 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: 1.8 µm / Nominal defocus min: 0.6 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: INSILICO MODEL In silico model: An unpublished map from our group was initially low-pass filtered and used as model, since the biology was analogous |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 142978 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |