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Yorodumi- PDB-5lks: Structure-function insights reveal the human ribosome as a cancer... -
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Basic information
| Entry | Database: PDB / ID: 5lks | |||||||||||||||||||||||||||||||||||||||
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| Title | Structure-function insights reveal the human ribosome as a cancer target for antibiotics | |||||||||||||||||||||||||||||||||||||||
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Keywords | RIBOSOME / CryoEM / human ribosome / 80S / cycloheximide | |||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationtranslation at presynapse / exit from mitosis / optic nerve development / response to insecticide / regulation of translation involved in cellular response to UV / eukaryotic 80S initiation complex / negative regulation of formation of translation preinitiation complex / axial mesoderm development / negative regulation of endoplasmic reticulum unfolded protein response / ribosomal protein import into nucleus ...translation at presynapse / exit from mitosis / optic nerve development / response to insecticide / regulation of translation involved in cellular response to UV / eukaryotic 80S initiation complex / negative regulation of formation of translation preinitiation complex / axial mesoderm development / negative regulation of endoplasmic reticulum unfolded protein response / ribosomal protein import into nucleus / regulation of G1 to G0 transition / retinal ganglion cell axon guidance / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / protein-DNA complex disassembly / positive regulation of ubiquitin-protein transferase activity / positive regulation of respiratory burst involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / positive regulation of gastrulation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / protein tyrosine kinase inhibitor activity / 90S preribosome assembly / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / nucleolus organization / alpha-beta T cell differentiation / positive regulation of DNA-templated transcription initiation / TNFR1-mediated ceramide production / positive regulation of DNA damage response, signal transduction by p53 class mediator / GAIT complex / negative regulation of RNA splicing / TORC2 complex binding / neural crest cell differentiation / supercoiled DNA binding / NF-kappaB complex / negative regulation of DNA repair / G1 to G0 transition / cytoplasmic translational initiation / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / middle ear morphogenesis / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / regulation of establishment of cell polarity / rRNA modification in the nucleus and cytosol / negative regulation of bicellular tight junction assembly / ubiquitin-like protein conjugating enzyme binding / negative regulation of phagocytosis / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / protein kinase A binding / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / laminin receptor activity / Translation initiation complex formation / homeostatic process / pigmentation / positive regulation of mitochondrial depolarization / macrophage chemotaxis / lung morphogenesis / negative regulation of Wnt signaling pathway / positive regulation of natural killer cell proliferation / fibroblast growth factor binding / male meiosis I / monocyte chemotaxis / BH3 domain binding / Protein hydroxylation / negative regulation of translational frameshifting / SARS-CoV-1 modulates host translation machinery / TOR signaling / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / mTORC1-mediated signalling / positive regulation of GTPase activity / iron-sulfur cluster binding / Peptide chain elongation / regulation of cell division / Selenocysteine synthesis / Formation of a pool of free 40S subunits / cellular response to ethanol / blastocyst development / Eukaryotic Translation Termination / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / negative regulation of protein binding / protein serine/threonine kinase inhibitor activity / Viral mRNA Translation / ubiquitin ligase inhibitor activity / negative regulation of respiratory burst involved in inflammatory response / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of signal transduction by p53 class mediator / GTP hydrolysis and joining of the 60S ribosomal subunit / protein localization to nucleus / negative regulation of ubiquitin-dependent protein catabolic process / L13a-mediated translational silencing of Ceruloplasmin expression / Major pathway of rRNA processing in the nucleolus and cytosol / protein targeting / positive regulation of microtubule polymerization Similarity search - Function | |||||||||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||||||||||||||||||||||||||||||||
Authors | Myasnikov, A.G. / Natchiar, S.K. / Nebout, M. / Hazemann, I. / Imbert, V. / Khatter, H. / Peyron, J.-F. / Klaholz, B.P. | |||||||||||||||||||||||||||||||||||||||
Citation | Journal: Nat Commun / Year: 2016Title: Structure-function insights reveal the human ribosome as a cancer target for antibiotics. Authors: Alexander G Myasnikov / S Kundhavai Natchiar / Marielle Nebout / Isabelle Hazemann / Véronique Imbert / Heena Khatter / Jean-François Peyron / Bruno P Klaholz / ![]() Abstract: Many antibiotics in clinical use target the bacterial ribosome by interfering with the protein synthesis machinery. However, targeting the human ribosome in the case of protein synthesis ...Many antibiotics in clinical use target the bacterial ribosome by interfering with the protein synthesis machinery. However, targeting the human ribosome in the case of protein synthesis deregulations such as in highly proliferating cancer cells has not been investigated at the molecular level up to now. Here we report the structure of the human 80S ribosome with a eukaryote-specific antibiotic and show its anti-proliferative effect on several cancer cell lines. The structure provides insights into the detailed interactions in a ligand-binding pocket of the human ribosome that are required for structure-assisted drug design. Furthermore, anti-proliferative dose response in leukaemic cells and interference with synthesis of c-myc and mcl-1 short-lived protein markers reveals specificity of a series of eukaryote-specific antibiotics towards cytosolic rather than mitochondrial ribosomes, uncovering the human ribosome as a promising cancer target. #1: Journal: Nature / Year: 2015Title: Structure of the human 80S ribosome. Authors: Heena Khatter / Alexander G Myasnikov / S Kundhavai Natchiar / Bruno P Klaholz / ![]() Abstract: Ribosomes are translational machineries that catalyse protein synthesis. Ribosome structures from various species are known at the atomic level, but obtaining the structure of the human ribosome has ...Ribosomes are translational machineries that catalyse protein synthesis. Ribosome structures from various species are known at the atomic level, but obtaining the structure of the human ribosome has remained a challenge; efforts to address this would be highly relevant with regard to human diseases. Here we report the near-atomic structure of the human ribosome derived from high-resolution single-particle cryo-electron microscopy and atomic model building. The structure has an average resolution of 3.6 Å, reaching 2.9 Å resolution in the most stable regions. It provides unprecedented insights into ribosomal RNA entities and amino acid side chains, notably of the transfer RNA binding sites and specific molecular interactions with the exit site tRNA. It reveals atomic details of the subunit interface, which is seen to remodel strongly upon rotational movements of the ribosomal subunits. Furthermore, the structure paves the way for analysing antibiotic side effects and diseases associated with deregulated protein synthesis. | |||||||||||||||||||||||||||||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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| PDBx/mmCIF format | 5lks.cif.gz | 5.3 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb5lks.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 5lks.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/lk/5lks ftp://data.pdbj.org/pub/pdb/validation_reports/lk/5lks | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 4070MC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Assembly
| Deposited unit | ![]()
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Components
-RNA chain , 4 types, 4 molecules L5L7L8S2
| #1: RNA chain | Mass: 1640238.125 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: GenBank: 86475748 |
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| #2: RNA chain | Mass: 38998.078 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: GenBank: 23898 |
| #3: RNA chain | Mass: 50449.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: GenBank: 555853 |
| #47: RNA chain | Mass: 602752.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: GenBank: 36162 |
+60S ribosomal protein ... , 41 types, 41 molecules LALBLCLDLELFLGLHLILJLLLMLNLOLPLQLRLSLTLULVLWLXLYLZLaLcLdLeLf...
-Ribosomal protein ... , 2 types, 2 molecules LbSe
| #30: Protein | Mass: 17604.018 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: A0A024R326 |
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| #79: Protein | Mass: 14415.724 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) |
-Protein , 3 types, 3 molecules LmSgSf
| #41: Protein | Mass: 14758.394 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62987 |
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| #68: Protein | Mass: 35115.652 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P63244 |
| #80: Protein | Mass: 18004.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62979 |
+40S ribosomal protein ... , 30 types, 30 molecules SASBSDSESFSHSISKSLSPSQSRSSSTSUSVSXSaScSdSCSGSJSMSNSOSWSYSZSb
-Non-polymers , 4 types, 264 molecules 






| #81: Chemical | ChemComp-3HE / | ||||
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| #82: Chemical | ChemComp-MG / #83: Chemical | ChemComp-ZN / #84: Water | ChemComp-HOH / | |
-Details
| Has protein modification | N |
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-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: Human 80S ribsome / Type: RIBOSOME / Entity ID: #1-#80 / Source: NATURAL |
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| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.5 |
| Specimen | Conc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER/RHODIUM / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/2 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 283 K |
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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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 79000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 400 nm / Calibrated defocus min: 500 nm / Calibrated defocus max: 3000 nm / Cs: 0.001 mm / C2 aperture diameter: 50 µm |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 105 K / Temperature (min): 79 K |
| Image recording | Average exposure time: 1 sec. / Electron dose: 50 e/Å2 / Detector mode: OTHER / Film or detector model: FEI FALCON II (4k x 4k) / Num. of grids imaged: 4 / Num. of real images: 6600 |
| EM imaging optics | Spherical aberration corrector: CS corrected microscope |
| Image scans | Sampling size: 14 µm / Movie frames/image: 7 / Used frames/image: 3-9 |
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Processing
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| CTF correction | Details: Relion / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 19000 / Algorithm: FOURIER SPACE / Details: RELION / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: RIGID BODY FIT / Target criteria: Maximum likelihood |
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