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Open data
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Basic information
Entry | Database: PDB / ID: 8scb | ||||||||||||
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Title | Terminating ribosome with SRI-41315 | ||||||||||||
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![]() | RIBOSOME / termination / SRI-41315 | ||||||||||||
Function / homology | ![]() translation termination factor activity / translation release factor complex / cytoplasmic translational termination / regulation of translational termination / translation release factor activity, codon specific / protein methylation / translation release factor activity / sequence-specific mRNA binding / ribosomal subunit / peptidyl-tRNA hydrolase activity ...translation termination factor activity / translation release factor complex / cytoplasmic translational termination / regulation of translational termination / translation release factor activity, codon specific / protein methylation / translation release factor activity / sequence-specific mRNA binding / ribosomal subunit / peptidyl-tRNA hydrolase activity / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / exit from mitosis / optic nerve development / laminin receptor activity / retinal ganglion cell axon guidance / Protein hydroxylation / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / Eukaryotic Translation Termination / phagocytic cup / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / 90S preribosome / protein-RNA complex assembly / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / translational termination / ribosomal small subunit export from nucleus / rough endoplasmic reticulum / laminin binding / translation regulator activity / gastrulation / MDM2/MDM4 family protein binding / cytosolic ribosome / class I DNA-(apurinic or apyrimidinic site) endonuclease activity / DNA-(apurinic or apyrimidinic site) lyase / cellular response to interleukin-4 / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / spindle / mRNA 5'-UTR binding / Regulation of expression of SLITs and ROBOs / cytoplasmic ribonucleoprotein granule / antimicrobial humoral immune response mediated by antimicrobial peptide / rRNA processing / rhythmic process / positive regulation of canonical Wnt signaling pathway / regulation of translation / large ribosomal subunit / heparin binding / ribosome binding / virus receptor activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / retina development in camera-type eye / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / small ribosomal subunit rRNA binding / defense response to Gram-negative bacterium / killing of cells of another organism / perikaryon / cytosolic large ribosomal subunit / cytoplasmic translation / cell differentiation / tRNA binding / mitochondrial inner membrane / postsynaptic density / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / cell division / DNA repair / mRNA binding / apoptotic process / synapse / centrosome / dendrite / negative regulation of apoptotic process / nucleolus / perinuclear region of cytoplasm / endoplasmic reticulum / Golgi apparatus / ATP hydrolysis activity / DNA binding / RNA binding / zinc ion binding / ATP binding / nucleus / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.5 Å | ||||||||||||
![]() | Yip, M.C.J. / Coelho, J.P.L. / Oltion, K. / Tauton, J. / Shao, S. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: The eRF1 degrader SRI-41315 acts as a molecular glue at the ribosomal decoding center. Authors: João P L Coelho / Matthew C J Yip / Keely Oltion / Jack Taunton / Sichen Shao / ![]() Abstract: Translation termination is an essential cellular process, which is also of therapeutic interest for diseases that manifest from premature stop codons. In eukaryotes, translation termination requires ...Translation termination is an essential cellular process, which is also of therapeutic interest for diseases that manifest from premature stop codons. In eukaryotes, translation termination requires eRF1, which recognizes stop codons, catalyzes the release of nascent proteins from ribosomes and facilitates ribosome recycling. The small molecule SRI-41315 triggers eRF1 degradation and enhances translational readthrough of premature stop codons. However, the mechanism of action of SRI-41315 on eRF1 and translation is not known. Here we report cryo-EM structures showing that SRI-41315 acts as a metal-dependent molecular glue between the N domain of eRF1 responsible for stop codon recognition and the ribosomal subunit interface near the decoding center. Retention of eRF1 on ribosomes by SRI-41315 leads to ribosome collisions, eRF1 ubiquitylation and a higher frequency of translation termination at near-cognate stop codons. Our findings reveal a new mechanism of release factor inhibition and additional implications for pharmacologically targeting eRF1. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 4.9 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 | ![]() 40344MC 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
-Ribosomal protein ... , 8 types, 8 molecules ABNQRVjDD
#1: Protein | Mass: 28088.863 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#2: Protein | Mass: 46107.977 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#13: Protein | Mass: 24207.285 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#16: Protein | Mass: 21699.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#17: Protein | Mass: 23535.281 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#21: Protein | Mass: 14892.505 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#35: Protein | Mass: 11111.032 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#55: Protein | Mass: 26715.344 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: G1TNM3, DNA-(apurinic or apyrimidinic site) lyase |
-60S ribosomal protein ... , 16 types, 16 molecules CEFGHIJMWZabgikt
#3: Protein | Mass: 46388.855 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#5: Protein | Mass: 33028.336 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#6: Protein | Mass: 29201.836 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#7: Protein | Mass: 36221.516 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#8: Protein | Mass: 21871.418 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#9: Protein | Mass: 24643.057 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#10: Protein | Mass: 20288.465 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#12: Protein | Mass: 23870.549 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#22: Protein | Mass: 17825.111 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#25: Protein | Mass: 15835.831 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#26: Protein | Mass: 16620.561 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#27: Protein | Mass: 26708.707 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#32: Protein | Mass: 13326.074 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#34: Protein | Mass: 12263.834 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#36: Protein | Mass: 8238.948 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#44: Protein | Mass: 17847.619 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
+Protein , 53 types, 53 molecules DLOPSTUXYcdefhlmoprs1AABBCCEEFFGGHHIIJJ...
-Protein/peptide , 1 types, 1 molecules n
#39: Protein/peptide | Mass: 3473.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-RNA chain , 7 types, 7 molecules 235789hh
#46: RNA chain | Mass: 24436.551 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#47: RNA chain | Mass: 24102.275 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#48: RNA chain | Mass: 1149054.125 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#49: RNA chain | Mass: 38691.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#50: RNA chain | Mass: 50157.676 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#51: RNA chain | Mass: 603440.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#85: RNA chain | Mass: 63720.914 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-40S ribosomal protein ... , 2 types, 2 molecules YYaa
#76: Protein | Mass: 15107.924 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#78: Protein | Mass: 13047.532 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Non-polymers , 5 types, 1281 molecules 








#88: Chemical | ChemComp-MG / #89: Chemical | ChemComp-ZN / #90: Chemical | ChemComp-ZVM / ( | #91: Chemical | #92: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: terminating rabbit ribosome / Type: RIBOSOME / Entity ID: #1-#87 / Source: NATURAL |
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Molecular weight | Value: 4 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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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 / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm |
Image recording | Electron dose: 53.8 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 2.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 90190 / Symmetry type: POINT |