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- PDB-7tor: Mammalian 80S ribosome bound with the ALS/FTD-associated dipeptid... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7tor | |||||||||||||||
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Title | Mammalian 80S ribosome bound with the ALS/FTD-associated dipeptide repeat protein GR20 | |||||||||||||||
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Function / homology | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |||||||||||||||
Method | ![]() ![]() ![]() | |||||||||||||||
![]() | Loveland, A.B. / Svidritskiy, E. / Susorov, D. / Lee, S. / Park, A. / Zvornicanin, S. / Demo, G. / Gao, F.B. / Korostelev, A.A. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Ribosome inhibition by C9ORF72-ALS/FTD-associated poly-PR and poly-GR proteins revealed by cryo-EM. Authors: Anna B Loveland / Egor Svidritskiy / Denis Susorov / Soojin Lee / Alexander Park / Sarah Zvornicanin / Gabriel Demo / Fen-Biao Gao / Andrei A Korostelev / ![]() ![]() Abstract: Toxic dipeptide-repeat (DPR) proteins are produced from expanded GC repeats in the C9ORF72 gene, the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). ...Toxic dipeptide-repeat (DPR) proteins are produced from expanded GC repeats in the C9ORF72 gene, the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Two DPR proteins, poly-PR and poly-GR, repress cellular translation but the molecular mechanism remains unknown. Here we show that poly-PR and poly-GR of ≥20 repeats inhibit the ribosome's peptidyl-transferase activity at nanomolar concentrations, comparable to specific translation inhibitors. High-resolution cryogenic electron microscopy (cryo-EM) reveals that poly-PR and poly-GR block the polypeptide tunnel of the ribosome, extending into the peptidyl-transferase center (PTC). Consistent with these findings, the macrolide erythromycin, which binds in the tunnel, competes with poly-PR and restores peptidyl-transferase activity. Our results demonstrate that strong and specific binding of poly-PR and poly-GR in the ribosomal tunnel blocks translation, revealing the structural basis of their toxicity in C9ORF72-ALS/FTD. | |||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 4.7 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 26036MC ![]() 7tooC ![]() 7topC ![]() 7toqC ![]() 7tosC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-RNA chain , 6 types, 7 molecules A18SA28SA58SA5SETRNPTRNMRNA
#1: RNA chain | ![]() Mass: 548040.188 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() | ||
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#2: RNA chain | ![]() Mass: 1151291.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() | ||
#3: RNA chain | ![]() Mass: 48545.672 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() | ||
#4: RNA chain | ![]() Mass: 38691.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() ![]() | ||
#82: RNA chain | Mass: 24802.785 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() #84: RNA chain | | ![]() Mass: 8591.155 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() ![]() |
+60S ribosomal protein ... , 29 types, 29 molecules AL02AL03AL04AL05AL06AL07AL09AL11AL13AL14AL15AL17AL19AL21AL23AL26AL27AL28AL30AL31AL32AL33AL34AL35AL36AL37AL39AL43ALNW
-Protein , 19 types, 19 molecules AL08AL12AL16AL18AL20AL22AL25AL29AL38AL40AL42ARACAS00AS07AS14AS16AS19AS21AS26
#11: Protein | Mass: 26695.654 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
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#15: Protein | Mass: 16561.117 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#19: Protein | Mass: 23144.859 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#21: Protein | Mass: 22099.139 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#23: Protein | Mass: 20827.561 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#25: Protein | Mass: 11495.275 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#28: Protein | Mass: 13727.181 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#32: Protein | Mass: 12093.424 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#41: Protein | Mass: 8107.752 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#43: Protein | Mass: 6199.574 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#45: Protein | Mass: 12198.603 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#49: Protein | Mass: 34669.113 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#50: Protein | Mass: 24361.861 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#57: Protein | Mass: 21629.309 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#64: Protein | Mass: 14431.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#66: Protein | Mass: 16032.804 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#69: Protein | Mass: 15611.003 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#71: Protein | Mass: 9124.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#76: Protein | Mass: 11645.794 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
-Ribosomal protein ... , 3 types, 3 molecules AL10AL24AS05
#13: Protein | ![]() Mass: 23736.992 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
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#27: Protein | ![]() Mass: 14131.536 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#55: Protein | ![]() Mass: 21525.941 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
-Protein/peptide , 3 types, 4 molecules AL41ALP0GR1GR2
#44: Protein/peptide | Mass: 3473.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
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#48: Protein/peptide | ![]() Mass: 3298.991 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() ![]() |
#83: Protein/peptide | Mass: 4302.926 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
+40S ribosomal protein ... , 24 types, 24 molecules AS01AS02AS03AS04AS06AS08AS09AS10AS11AS12AS13AS15AS17AS18AS20AS22AS23AS24AS25AS27AS28AS29AS30AS31
-Non-polymers , 1 types, 6 molecules ![](data/chem/img/ZN.gif)
#85: Chemical | ChemComp-ZN / |
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-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: ![]() |
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Sample preparation
Component | Name: Mamalian 80S ribosome bound with the ALS/FTD-associated dipeptide repeat protein GR20 Type: RIBOSOME / Entity ID: #1-#84 / Source: MULTIPLE SOURCES | ||||||||||||
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Molecular weight | Value: 4 MDa / Experimental value: NO | ||||||||||||
Source (natural) |
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Buffer solution | pH: 7 | ||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied![]() ![]() | ||||||||||||
Vitrification![]() | Cryogen name: ETHANE / Humidity: 95 % |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source![]() ![]() |
Electron lens | Mode: BRIGHT FIELD![]() |
Image recording | Electron dose: 30 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
EM software | Name: FREALIGN / Version: 9.11 / Category: 3D reconstruction![]() |
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CTF correction![]() | Type: PHASE FLIPPING ONLY |
3D reconstruction![]() | Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 20284 / Num. of class averages: 12 / Symmetry type: POINT |