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Yorodumi- EMDB-24307: Structure of the translating Neurospora crassa ribosome arrested ... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-24307 | ||||||||||||
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Title | Structure of the translating Neurospora crassa ribosome arrested by cycloheximide | ||||||||||||
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Sample |
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Keywords | Protein Synthesis Inhibitor / Cytosolic Ribosome / Polysomal Ribosome / Peptidyl Transferase Center / TRANSLATION | ||||||||||||
Function / homology | Function and homology information negative regulation of cell integrity MAPK cascade / positive regulation of conjugation with cellular fusion / GCN2-mediated signaling / regulation of cytoplasmic translation / negative regulation of p38MAPK cascade / negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / positive regulation of translational fidelity / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity ...negative regulation of cell integrity MAPK cascade / positive regulation of conjugation with cellular fusion / GCN2-mediated signaling / regulation of cytoplasmic translation / negative regulation of p38MAPK cascade / negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / positive regulation of translational fidelity / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / pre-mRNA 5'-splice site binding / preribosome, small subunit precursor / mRNA destabilization / negative regulation of mRNA splicing, via spliceosome / G-protein alpha-subunit binding / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / protein-RNA complex assembly / ribosomal subunit export from nucleus / ribosomal small subunit export from nucleus / positive regulation of autophagy / translation regulator activity / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / DNA-(apurinic or apyrimidinic site) endonuclease activity / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rescue of stalled ribosome / ribosomal large subunit biogenesis / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / protein kinase C binding / maintenance of translational fidelity / modification-dependent protein catabolic process / protein tag activity / rRNA processing / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosome biogenesis / ribosome binding / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / positive regulation of protein phosphorylation / G protein-coupled receptor signaling pathway / translation / mRNA binding / ubiquitin protein ligase binding / nucleolus / RNA binding / zinc ion binding / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | Neurospora crassa (fungus) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.7 Å | ||||||||||||
Authors | Shen L / Su Z | ||||||||||||
Funding support | United States, 3 items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2021 Title: Structure of the translating ribosome arrested by cycloheximide. Authors: Lunda Shen / Zhaoming Su / Kailu Yang / Cheng Wu / Thomas Becker / Deborah Bell-Pedersen / Junjie Zhang / Matthew S Sachs / Abstract: Ribosomes translate RNA into proteins. The protein synthesis inhibitor cycloheximide (CHX) is widely used to inhibit eukaryotic ribosomes engaged in translation elongation. However, the lack of ...Ribosomes translate RNA into proteins. The protein synthesis inhibitor cycloheximide (CHX) is widely used to inhibit eukaryotic ribosomes engaged in translation elongation. However, the lack of structural data for actively translating polyribosomes stalled by CHX leaves unanswered the question of which elongation step is inhibited. We elucidated CHX's mechanism of action based on the cryo-electron microscopy structure of actively translating ribosomes bound with CHX at 2.7-Å resolution. The ribosome structure from this filamentous fungus contains clearly resolved ribosomal protein eL28, like higher eukaryotes but unlike budding yeast, which lacks eL28. Despite some differences in overall structures, the ribosomes from , yeast, and humans all contain a highly conserved CHX binding site. We also sequenced classic CHX-resistant alleles. These mutations, including one at a residue not previously observed to affect CHX resistance in eukaryotes, were in the large subunit proteins uL15 and eL42 that are part of the CHX-binding pocket. In addition to A-site transfer RNA (tRNA), P-site tRNA, messenger RNA, and CHX that are associated with the translating ribosome, spermidine is present near the CHX binding site close to the E site on the large subunit. The tRNAs in the peptidyl transferase center are in the A/A site and the P/P site. The nascent peptide is attached to the A-site tRNA and not to the P-site tRNA. The structural and functional data obtained show that CHX arrests the ribosome in the classical PRE translocation state and does not interfere with A-site reactivity. | ||||||||||||
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_24307.map.gz | 204.2 MB | EMDB map data format | |
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Header (meta data) | emd-24307-v30.xml emd-24307.xml | 113 KB 113 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_24307_fsc.xml | 13.4 KB | Display | FSC data file |
Images | emd_24307.png | 133.1 KB | ||
Masks | emd_24307_msk_1.map | 216 MB | Mask map | |
Filedesc metadata | emd-24307.cif.gz | 19.2 KB | ||
Others | emd_24307_half_map_1.map.gz emd_24307_half_map_2.map.gz | 200.7 MB 200.7 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-24307 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-24307 | HTTPS FTP |
-Validation report
Summary document | emd_24307_validation.pdf.gz | 1.1 MB | Display | EMDB validaton report |
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Full document | emd_24307_full_validation.pdf.gz | 1.1 MB | Display | |
Data in XML | emd_24307_validation.xml.gz | 21.8 KB | Display | |
Data in CIF | emd_24307_validation.cif.gz | 28.3 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24307 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24307 | HTTPS FTP |
-Related structure data
Related structure data | 7r81MC 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_24307.map.gz / Format: CCP4 / Size: 216 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_24307_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_24307_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_24307_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Structure of the translating Neurospora crassa ribosome arrested ...
+Supramolecule #1: Structure of the translating Neurospora crassa ribosome arrested ...
+Supramolecule #2: 60S ribosomal subunit
+Supramolecule #3: 40S ribosomal subunit
+Supramolecule #4: tRNA
+Supramolecule #5: Nascent peptide
+Supramolecule #6: mRNA
+Macromolecule #1: 26S rRNA
+Macromolecule #2: 18S rRNA
+Macromolecule #3: 5S rRNA
+Macromolecule #5: 5.8S rRNA
+Macromolecule #80: tRNA
+Macromolecule #82: mRNA
+Macromolecule #4: 40S ribosomal protein S0
+Macromolecule #6: 40S ribosomal protein S1
+Macromolecule #7: 60S ribosomal protein L2
+Macromolecule #8: 40S ribosomal protein S2
+Macromolecule #9: 60S ribosomal protein L3
+Macromolecule #10: Cytoplasmic ribosomal protein 10
+Macromolecule #11: 60S ribosomal protein L4-A
+Macromolecule #12: 40S ribosomal protein S4
+Macromolecule #13: 60S ribosomal protein L5
+Macromolecule #14: 40S ribosomal protein S5
+Macromolecule #15: 60S ribosomal protein L6
+Macromolecule #16: 40S ribosomal protein S6
+Macromolecule #17: 60S ribosomal protein L7
+Macromolecule #18: 40S ribosomal protein S7
+Macromolecule #19: 60S ribosomal protein L8
+Macromolecule #20: 40S ribosomal protein S8
+Macromolecule #21: 60S ribosomal protein L9
+Macromolecule #22: 40S ribosomal protein S9
+Macromolecule #23: 60S ribosomal protein L10
+Macromolecule #24: Probable 40s ribosomal protein s10-b
+Macromolecule #25: 60S ribosomal protein L11
+Macromolecule #26: 40S ribosomal protein S11
+Macromolecule #27: 60S ribosomal protein L13
+Macromolecule #28: 40S ribosomal protein S12
+Macromolecule #29: Ribosomal protein L14
+Macromolecule #30: 40S ribosomal protein S13
+Macromolecule #31: 60S ribosomal protein L15
+Macromolecule #32: 40S ribosomal protein S14 (uS11)
+Macromolecule #33: 60S ribosomal protein L16
+Macromolecule #34: Ribosomal protein S12
+Macromolecule #35: 60S ribosomal protein L17
+Macromolecule #36: 40S ribosomal protein S16
+Macromolecule #37: 60S ribosomal protein L18
+Macromolecule #38: 40S ribosomal protein S17
+Macromolecule #39: Ribosomal protein L19
+Macromolecule #40: 40S ribosomal protein S18
+Macromolecule #41: 60S ribosomal protein L20
+Macromolecule #42: 40S ribosomal protein S19
+Macromolecule #43: Ribosomal protein Srp1
+Macromolecule #44: 40S ribosomal protein S20
+Macromolecule #45: 60S ribosomal protein L22
+Macromolecule #46: 40S ribosomal protein S21
+Macromolecule #47: 60S ribosomal protein L23
+Macromolecule #48: 40S ribosomal protein S22
+Macromolecule #49: 60S ribosomal protein L24
+Macromolecule #50: 40S ribosomal protein S23
+Macromolecule #51: 60S ribosomal protein L25
+Macromolecule #52: 40S ribosomal protein S24
+Macromolecule #53: Ribosomal protein L26
+Macromolecule #54: 40S ribosomal protein S25
+Macromolecule #55: 60S ribosomal protein L27 (eL27)
+Macromolecule #56: 40S ribosomal protein S26E
+Macromolecule #57: 60S ribosomal protein L28
+Macromolecule #58: 40S ribosomal protein S27
+Macromolecule #59: 60S ribosomal protein L29
+Macromolecule #60: 40S ribosomal protein S28
+Macromolecule #61: 60S ribosomal protein L30
+Macromolecule #62: 40S ribosomal protein S29
+Macromolecule #63: 60s ribosomal protein
+Macromolecule #64: 40S ribosomal protein S30
+Macromolecule #65: 60S ribosomal protein L32
+Macromolecule #66: Ubiquitin-40S ribosomal protein S27a
+Macromolecule #67: 60S ribosomal protein L33
+Macromolecule #68: Guanine nucleotide-binding protein subunit beta-like protein
+Macromolecule #69: 60S ribosomal protein L34
+Macromolecule #70: 60S ribosomal protein L35
+Macromolecule #71: 60S ribosomal protein L36
+Macromolecule #72: Ribosomal protein L37
+Macromolecule #73: 60S ribosomal protein L38
+Macromolecule #74: 60S ribosomal protein L39
+Macromolecule #75: 60S ribosomal protein L40
+Macromolecule #76: hypothetical protein NCU16635 (eL41)
+Macromolecule #77: 60S ribosomal protein L44
+Macromolecule #78: 60S ribosomal protein L43
+Macromolecule #79: Ribosomal_L28e domain-containing protein
+Macromolecule #81: Nascent peptide
+Macromolecule #83: 4-{(2R)-2-[(1S,3S,5S)-3,5-dimethyl-2-oxocyclohexyl]-2-hydroxyethy...
+Macromolecule #84: SPERMIDINE
+Macromolecule #85: MAGNESIUM ION
-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) / Detector mode: SUPER-RESOLUTION / Average electron dose: 32.0 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 |