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Yorodumi- PDB-9jpp: Structure of the Bacterial Ribosome with human tRNA Lys(mcm5s2U34... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 9jpp | |||||||||||||||||||||||||||
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| Title | Structure of the Bacterial Ribosome with human tRNA Lys(mcm5s2U34) and mRNA(AAG) | |||||||||||||||||||||||||||
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Keywords | RIBOSOME / tRNA modifications / decoding | |||||||||||||||||||||||||||
| Function / homology | Function and homology informationnegative regulation of cytoplasmic translational initiation / transcription antitermination factor activity, RNA binding / ornithine decarboxylase inhibitor activity / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis / RNA-binding transcription regulator activity ...negative regulation of cytoplasmic translational initiation / transcription antitermination factor activity, RNA binding / ornithine decarboxylase inhibitor activity / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis / RNA-binding transcription regulator activity / four-way junction DNA binding / negative regulation of cytoplasmic translation / DnaA-L2 complex / regulation of mRNA stability / translation repressor activity / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / positive regulation of RNA splicing / regulation of DNA-templated transcription elongation / transcription elongation factor complex / cytosolic ribosome assembly / response to reactive oxygen species / ribosome assembly / assembly of large subunit precursor of preribosome / transcription antitermination / DNA endonuclease activity / translational initiation / regulation of cell growth / DNA-templated transcription termination / response to radiation / maintenance of translational fidelity / mRNA 5'-UTR binding / regulation of translation / large ribosomal subunit / ribosomal small subunit assembly / transferase activity / ribosome biogenesis / ribosome binding / ribosomal small subunit biogenesis / 5S rRNA binding / small ribosomal subunit / ribosomal large subunit assembly / small ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / hydrolase activity / mRNA binding / DNA binding / RNA binding / zinc ion binding / membrane / cytoplasm / cytosol Similarity search - Function | |||||||||||||||||||||||||||
| Biological species | ![]() ![]() Homo sapiens (human) | |||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.26 Å | |||||||||||||||||||||||||||
Authors | Ishiguro, K. / Mo, Y. / Shirouzu, M. / Suzuki, T. | |||||||||||||||||||||||||||
| Funding support | Japan, 3items
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Citation | Journal: Nat Commun / Year: 2026Title: Translational regulation by oxidative desulfuration of tRNA modifications. Authors: Yufeng Mo / Kensuke Ishiguro / Kenjyo Miyauchi / Yuriko Sakaguchi / Yosei Hanzawa / Naho Akiyama / Ayaka Murayama / Kodai Machida / Hiroaki Imataka / Akio Yamashita / Takayuki Ohira / Mikako ...Authors: Yufeng Mo / Kensuke Ishiguro / Kenjyo Miyauchi / Yuriko Sakaguchi / Yosei Hanzawa / Naho Akiyama / Ayaka Murayama / Kodai Machida / Hiroaki Imataka / Akio Yamashita / Takayuki Ohira / Mikako Shirouzu / Tsutomu Suzuki / ![]() Abstract: Modifications in the anticodon region of transfer RNA (tRNA) are essential for accurate and efficient protein synthesis. 5-Methyl-2-thiouridine derivatives (xmsU) are major modifications at the ...Modifications in the anticodon region of transfer RNA (tRNA) are essential for accurate and efficient protein synthesis. 5-Methyl-2-thiouridine derivatives (xmsU) are major modifications at the wobble position of tRNA anticodons decoding purine-ending two-codon sets. Although the thiocarbonyl group of xmsU enhances decoding efficiency, it is chemically susceptible to oxidative desulfuration, yielding 4-pyrimidinone derivatives (xmhU). Here, we identify xmhU derivatives in human cells and mouse tissues and confirm their cellular formation by spike-in experiments. Desulfurized tRNAs carrying 5-methoxycarbonylmethyl-4-pyrimidinone (mcmhU) show impaired codon recognition in a human reconstituted in vitro translation system. The mcmhU modification reduces aminoacylation of tRNAs for lysine, glutamate, and glutamine, but not arginine. Cryogenic electron microscopy reveals the structural basis of altered AAA/AAG decoding by mcmhU at the ribosomal A-site. These findings reveal a mechanism by which oxidative desulfuration of tRNA modifications dynamically regulates codon recognition and protein synthesis under oxidative stress conditions in human and mammalian cells. | |||||||||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9jpp.cif.gz | 3.1 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9jpp.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9jpp.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/jp/9jpp ftp://data.pdbj.org/pub/pdb/validation_reports/jp/9jpp | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 61709MC ![]() 9jpmC ![]() 9jpoC ![]() 9jq2C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-RNA chain , 6 types, 6 molecules AabXZV
| #1: RNA chain | Mass: 499873.406 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #22: RNA chain | Mass: 941811.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #23: RNA chain | Mass: 38790.090 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #53: RNA chain | Mass: 11180.532 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
| #54: RNA chain | Mass: 24832.918 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #55: RNA chain | Mass: 24818.064 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293T |
-30S ribosomal protein ... , 20 types, 20 molecules BCDEFGHIJKLMNOPQRSTU
| #2: Protein | Mass: 26781.670 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #3: Protein | Mass: 26031.316 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #4: Protein | Mass: 23514.199 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #5: Protein | Mass: 17629.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #6: Protein | Mass: 15727.512 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #7: Protein | Mass: 20055.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #8: Protein | Mass: 14146.557 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #9: Protein | Mass: 14886.270 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #10: Protein | Mass: 11755.597 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #11: Protein | Mass: 13871.959 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: UNP S1ELC2 / Source: (natural) ![]() |
| #12: Protein | Mass: 13814.249 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #13: Protein | Mass: 13128.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #14: Protein | Mass: 11606.560 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #15: Protein | Mass: 10290.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #16: Protein | Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #17: Protein | Mass: 9724.491 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #18: Protein | Mass: 9005.472 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #19: Protein | Mass: 10455.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #20: Protein | Mass: 9708.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #21: Protein | Mass: 8524.039 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
+50S ribosomal protein ... , 29 types, 29 molecules cdefghijklmnopqrstuvwxyz01234
-Non-polymers , 2 types, 445 molecules 


| #56: Chemical | ChemComp-MG / #57: Chemical | |
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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
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| Source (natural) |
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| Buffer solution | pH: 7.6 / Details: The Buffer pH was adjusted to 7.6 using KOH. | ||||||||||||||||||||||||||||||||||||||||||
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| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: 100nM ribosomes were incubated with 500nM tRNAs and mRNA | ||||||||||||||||||||||||||||||||||||||||||
| Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 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: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 500 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 9997 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 1098304 | ||||||||||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.26 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 517738 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: FLEXIBLE FIT | ||||||||||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 7y7e Accession code: 7y7e / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 17.25 Å2 | ||||||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)
Japan, 3items
Citation






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FIELD EMISSION GUN
