+
Open data
-
Basic information
Entry | Database: EMDB / ID: EMD-10397 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Structure of yeast 80S ribosome stalled on poly(A) tract. | |||||||||
![]() | Yeast 80S ribosome stalled on a poly(A) tract | |||||||||
![]() |
| |||||||||
![]() | stalling dicodon codon pair / TRANSLATION | |||||||||
Function / homology | ![]() maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, LSU-rRNA,5S) / negative regulation of glucose mediated signaling pathway / positive regulation of translational fidelity / RMTs methylate histone arginines / Protein methylation / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay ...maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, LSU-rRNA,5S) / negative regulation of glucose mediated signaling pathway / positive regulation of translational fidelity / RMTs methylate histone arginines / Protein methylation / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / pre-mRNA 5'-splice site binding / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / preribosome, small subunit precursor / Ribosomal scanning and start codon recognition / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / nonfunctional rRNA decay / response to cycloheximide / Major pathway of rRNA processing in the nucleolus and cytosol / mRNA destabilization / negative regulation of translational frameshifting / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / negative regulation of mRNA splicing, via spliceosome / Formation of a pool of free 40S subunits / preribosome, large subunit precursor / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / L13a-mediated translational silencing of Ceruloplasmin expression / translational elongation / regulation of amino acid metabolic process / ribosomal large subunit export from nucleus / positive regulation of protein kinase activity / G-protein alpha-subunit binding / 90S preribosome / 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) / protein-RNA complex assembly / regulation of translational fidelity / ribosomal subunit export from nucleus / translational termination / ribosomal small subunit export from nucleus / maturation of LSU-rRNA / translation regulator activity / rescue of stalled ribosome / DNA-(apurinic or apyrimidinic site) endonuclease activity / cellular response to amino acid starvation / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / ribosome assembly / protein kinase C binding / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / translational initiation / macroautophagy / maintenance of translational fidelity / modification-dependent protein catabolic process / protein tag activity / rRNA processing / cytoplasmic stress granule / ribosome biogenesis / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / negative regulation of translation / rRNA binding / protein ubiquitination / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / G protein-coupled receptor signaling pathway / negative regulation of gene expression / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||
![]() | Tesina P / Buschauer R | |||||||||
Funding support | ![]()
| |||||||||
![]() | ![]() Title: Molecular mechanism of translational stalling by inhibitory codon combinations and poly(A) tracts. Authors: Petr Tesina / Laura N Lessen / Robert Buschauer / Jingdong Cheng / Colin Chih-Chien Wu / Otto Berninghausen / Allen R Buskirk / Thomas Becker / Roland Beckmann / Rachel Green / ![]() ![]() Abstract: Inhibitory codon pairs and poly(A) tracts within the translated mRNA cause ribosome stalling and reduce protein output. The molecular mechanisms that drive these stalling events, however, are still ...Inhibitory codon pairs and poly(A) tracts within the translated mRNA cause ribosome stalling and reduce protein output. The molecular mechanisms that drive these stalling events, however, are still unknown. Here, we use a combination of in vitro biochemistry, ribosome profiling, and cryo-EM to define molecular mechanisms that lead to these ribosome stalls. First, we use an in vitro reconstituted yeast translation system to demonstrate that inhibitory codon pairs slow elongation rates which are partially rescued by increased tRNA concentration or by an artificial tRNA not dependent on wobble base-pairing. Ribosome profiling data extend these observations by revealing that paused ribosomes with empty A sites are enriched on these sequences. Cryo-EM structures of stalled ribosomes provide a structural explanation for the observed effects by showing decoding-incompatible conformations of mRNA in the A sites of all studied stall- and collision-inducing sequences. Interestingly, in the case of poly(A) tracts, the inhibitory conformation of the mRNA in the A site involves a nucleotide stacking array. Together, these data demonstrate a novel mRNA-induced mechanisms of translational stalling in eukaryotic ribosomes. | |||||||||
History |
|
-
Structure visualization
Movie |
![]() |
---|---|
Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
-
Downloads & links
-EMDB archive
Map data | ![]() | 139.8 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 106.2 KB 106.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.2 KB | Display | ![]() |
Images | ![]() | 230.1 KB | ||
Filedesc metadata | ![]() | 17.7 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 536.7 KB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 536.2 KB | Display | |
Data in XML | ![]() | 13.9 KB | Display | |
Data in CIF | ![]() | 18.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6t7tMC ![]() 6t4qC ![]() 6t7iC ![]() 6t83C M: atomic model generated by this map C: citing same article ( |
---|---|
Similar structure data |
-
Links
EMDB pages | ![]() ![]() |
---|---|
Related items in Molecule of the Month |
-
Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | Yeast 80S ribosome stalled on a poly(A) tract | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.084 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-
Sample components
+Entire : Structure of yeast 80S ribosome stalled on poly(A) tract.
+Supramolecule #1: Structure of yeast 80S ribosome stalled on poly(A) tract.
+Supramolecule #2: yeast 80S ribosome
+Supramolecule #3: mRNA
+Macromolecule #1: 60S ribosomal protein L2-A
+Macromolecule #2: 40S ribosomal protein S0-A
+Macromolecule #3: 60S ribosomal protein L3
+Macromolecule #4: 40S ribosomal protein S1-A
+Macromolecule #6: 40S ribosomal protein S15
+Macromolecule #7: 40S ribosomal protein S2
+Macromolecule #8: 40S ribosomal protein S3
+Macromolecule #9: 40S ribosomal protein S4-A
+Macromolecule #10: Rps5p
+Macromolecule #11: 40S ribosomal protein S6-A
+Macromolecule #12: 40S ribosomal protein S7-A
+Macromolecule #13: 40S ribosomal protein S8
+Macromolecule #14: 40S ribosomal protein S9-A
+Macromolecule #15: 40S ribosomal protein S10-A
+Macromolecule #16: 40S ribosomal protein S11-A
+Macromolecule #17: 40S ribosomal protein S12
+Macromolecule #18: 40S ribosomal protein S13
+Macromolecule #19: 40S ribosomal protein S14-B
+Macromolecule #20: 40S ribosomal protein S16-A
+Macromolecule #21: 40S ribosomal protein S17-B
+Macromolecule #22: 40S ribosomal protein S18-A
+Macromolecule #23: 40S ribosomal protein S19-A
+Macromolecule #24: 40S ribosomal protein S20
+Macromolecule #25: 40S ribosomal protein S21-A
+Macromolecule #26: 40S ribosomal protein S22-A
+Macromolecule #27: 40S ribosomal protein S23-A
+Macromolecule #28: 40S ribosomal protein S24-A
+Macromolecule #29: 40S ribosomal protein S25-A
+Macromolecule #30: 40S ribosomal protein S26-B
+Macromolecule #31: 40S ribosomal protein S27-A
+Macromolecule #32: 40S ribosomal protein S29-A
+Macromolecule #33: 40S ribosomal protein S30-A
+Macromolecule #34: Ubiquitin-40S ribosomal protein S31
+Macromolecule #35: Guanine nucleotide-binding protein subunit beta-like protein
+Macromolecule #36: 40S ribosomal protein S28-A
+Macromolecule #39: 60S ribosomal protein L4-A
+Macromolecule #40: 60S ribosomal protein L5
+Macromolecule #41: 60S ribosomal protein L6-B
+Macromolecule #42: 60S ribosomal protein L7-A
+Macromolecule #43: 60S ribosomal protein L8-A
+Macromolecule #44: 60S ribosomal protein L9-A
+Macromolecule #45: 60S ribosomal protein L10
+Macromolecule #46: 60S ribosomal protein L11-B
+Macromolecule #47: 60S ribosomal protein L13-A
+Macromolecule #48: 60S ribosomal protein L14-A
+Macromolecule #49: 60S ribosomal protein L15-A
+Macromolecule #50: 60S ribosomal protein L16-A
+Macromolecule #51: 60S ribosomal protein L17-A
+Macromolecule #52: 60S ribosomal protein L18-A
+Macromolecule #53: 60S ribosomal protein L19-A
+Macromolecule #54: 60S ribosomal protein L20-A
+Macromolecule #55: 60S ribosomal protein L21-A
+Macromolecule #56: 60S ribosomal protein L22-A
+Macromolecule #57: 60S ribosomal protein L23-A
+Macromolecule #58: 60S ribosomal protein L24-A
+Macromolecule #59: 60S ribosomal protein L25
+Macromolecule #60: 60S ribosomal protein L26-A
+Macromolecule #61: 60S ribosomal protein L27-A
+Macromolecule #62: 60S ribosomal protein L28
+Macromolecule #63: 60S ribosomal protein L29
+Macromolecule #64: 60S ribosomal protein L30
+Macromolecule #65: 60S ribosomal protein L31-A
+Macromolecule #66: 60S ribosomal protein L32
+Macromolecule #67: 60S ribosomal protein L33-A
+Macromolecule #68: 60S ribosomal protein L34-A
+Macromolecule #69: 60S ribosomal protein L35-A
+Macromolecule #70: 60S ribosomal protein L36-A
+Macromolecule #71: 60S ribosomal protein L37-A
+Macromolecule #72: 60S ribosomal protein L38
+Macromolecule #73: 60S ribosomal protein L39
+Macromolecule #74: Ubiquitin-60S ribosomal protein L40
+Macromolecule #75: 60S ribosomal protein L41-A
+Macromolecule #76: 60S ribosomal protein L42-A
+Macromolecule #77: 60S ribosomal protein L43-A
+Macromolecule #81: nascent chain
+Macromolecule #5: 18S rRNA
+Macromolecule #37: 5S rRNA
+Macromolecule #38: 5.8S rRNA
+Macromolecule #78: 25S rRNA
+Macromolecule #79: mRNA
+Macromolecule #80: tRNA
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
![]() | single particle reconstruction |
Aggregation state | particle |
-
Sample preparation
Buffer | pH: 7.2 |
---|---|
Vitrification | Cryogen name: ETHANE |
-
Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Image recording | Film or detector model: FEI FALCON II (4k x 4k) / Average electron dose: 2.5 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |