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Yorodumi- EMDB-7024: Cryo-EM structure of the small subunit of Leishmania ribosome bou... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-7024 | |||||||||
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Title | Cryo-EM structure of the small subunit of Leishmania ribosome bound to paromomycin | |||||||||
Map data | primary map | |||||||||
Sample |
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Function / homology | Function and homology information translation regulator activity / small-subunit processome / modification-dependent protein catabolic process / protein tag activity / ribosomal small subunit biogenesis / ribosome binding / ribosomal small subunit assembly / small ribosomal subunit / cytosolic small ribosomal subunit / rRNA binding ...translation regulator activity / small-subunit processome / modification-dependent protein catabolic process / protein tag activity / ribosomal small subunit biogenesis / ribosome binding / ribosomal small subunit assembly / small ribosomal subunit / cytosolic small ribosomal subunit / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / ubiquitin protein ligase binding / nucleolus / RNA binding / zinc ion binding / nucleus / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Leishmania donovani (eukaryote) / Escherichia coli (E. coli) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.7 Å | |||||||||
Authors | Shalev-Benami M / Zhang Y / Rozenberg H / Matzov D / Zimmerman E / Bashan A / Jaffe CL / Yonath A / Skiniotis G | |||||||||
Citation | Journal: Nat Commun / Year: 2017 Title: Atomic resolution snapshot of Leishmania ribosome inhibition by the aminoglycoside paromomycin. Authors: Moran Shalev-Benami / Yan Zhang / Haim Rozenberg / Yuko Nobe / Masato Taoka / Donna Matzov / Ella Zimmerman / Anat Bashan / Toshiaki Isobe / Charles L Jaffe / Ada Yonath / Georgios Skiniotis / Abstract: Leishmania is a single-celled eukaryotic parasite afflicting millions of humans worldwide, with current therapies limited to a poor selection of drugs that mostly target elements in the parasite's ...Leishmania is a single-celled eukaryotic parasite afflicting millions of humans worldwide, with current therapies limited to a poor selection of drugs that mostly target elements in the parasite's cell envelope. Here we determined the atomic resolution electron cryo-microscopy (cryo-EM) structure of the Leishmania ribosome in complex with paromomycin (PAR), a highly potent compound recently approved for treatment of the fatal visceral leishmaniasis (VL). The structure reveals the mechanism by which the drug induces its deleterious effects on the parasite. We further show that PAR interferes with several aspects of cytosolic translation, thus highlighting the cytosolic rather than the mitochondrial ribosome as the primary drug target. The results also highlight unique as well as conserved elements in the PAR-binding pocket that can serve as hotspots for the development of novel therapeutics. | |||||||||
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_7024.map.gz | 202.3 MB | EMDB map data format | |
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Header (meta data) | emd-7024-v30.xml emd-7024.xml | 45.6 KB 45.6 KB | Display Display | EMDB header |
Images | emd_7024.png | 165.1 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-7024 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-7024 | HTTPS FTP |
-Validation report
Summary document | emd_7024_validation.pdf.gz | 565.3 KB | Display | EMDB validaton report |
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Full document | emd_7024_full_validation.pdf.gz | 564.8 KB | Display | |
Data in XML | emd_7024_validation.xml.gz | 7 KB | Display | |
Data in CIF | emd_7024_validation.cif.gz | 8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7024 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7024 | HTTPS FTP |
-Related structure data
Related structure data | 6az1MC 7025C 6az3C 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_7024.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | primary map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.02 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
+Entire : Leishmania donovani 91S ribosome SSU
+Supramolecule #1: Leishmania donovani 91S ribosome SSU
+Macromolecule #1: Ribosomal protein s1e
+Macromolecule #2: ribosomal protein S2
+Macromolecule #3: ribosomal protein S3
+Macromolecule #4: ribosomal protein S4
+Macromolecule #5: ribosomal protein S4e
+Macromolecule #6: ribosomal protein S5
+Macromolecule #7: ribosomal protein S6e
+Macromolecule #8: ribosomal protein S7
+Macromolecule #9: ribosomal protein S7e
+Macromolecule #10: ribosomal protein S8
+Macromolecule #11: ribosomal protein S8e
+Macromolecule #12: ribosomal protein S9
+Macromolecule #13: ribosomal protein S10
+Macromolecule #14: ribosomal protein S10e
+Macromolecule #15: ribosomal protein S11
+Macromolecule #16: ribosomal protein S12
+Macromolecule #17: ribosomal protein S12e
+Macromolecule #18: ribosomal protein S13
+Macromolecule #19: ribosomal protein S14
+Macromolecule #20: ribosomal protein S15
+Macromolecule #21: ribosomal protein S17
+Macromolecule #22: ribosomal protein S17e
+Macromolecule #23: ribosomal protein S19
+Macromolecule #24: ribosomal protein S19e
+Macromolecule #25: ribosomal protein S21e
+Macromolecule #26: ribosomal protein S24e
+Macromolecule #27: ribosomal protein S25e
+Macromolecule #28: ribosomal protein S26e
+Macromolecule #29: ribosomal protein S27e
+Macromolecule #30: ribosomal protein S28e
+Macromolecule #31: ribosomal protein S30e
+Macromolecule #32: ribosomal protein S31e
+Macromolecule #33: LACK1
+Macromolecule #34: ribosomal RNA 18S
+Macromolecule #35: tRNA-Phe
+Macromolecule #36: P-site tRNA
+Macromolecule #37: E-site tRNA
+Macromolecule #38: mRNA
+Macromolecule #39: MAGNESIUM ION
+Macromolecule #40: PAROMOMYCIN
+Macromolecule #41: water
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.6 |
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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 SUMMIT (4k x 4k) / Average electron dose: 1.0 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 | Resolution.type: BY AUTHOR / Resolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 141028 |
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Initial angle assignment | Type: PROJECTION MATCHING |
Final angle assignment | Type: PROJECTION MATCHING |