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Open data
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Basic information
| Entry | Database: PDB / ID: 8xxn | ||||||
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| Title | Cryo-EM structure of the human 43S ribosome with PDCD4 | ||||||
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Keywords | RIBOSOME / PDCD4 / eIF4A | ||||||
| Function / homology | Function and homology informationepithelial to mesenchymal transition involved in cardiac fibroblast development / negative regulation of myofibroblast differentiation / negative regulation of vascular associated smooth muscle cell differentiation / viral translational termination-reinitiation / Activation of the mRNA upon binding of the cap-binding complex and eIFs, and subsequent binding to 43S / negative regulation of JUN kinase activity / eukaryotic translation initiation factor 3 complex, eIF3e / cap-dependent translational initiation / eukaryotic translation initiation factor 3 complex, eIF3m / IRES-dependent viral translational initiation ...epithelial to mesenchymal transition involved in cardiac fibroblast development / negative regulation of myofibroblast differentiation / negative regulation of vascular associated smooth muscle cell differentiation / viral translational termination-reinitiation / Activation of the mRNA upon binding of the cap-binding complex and eIFs, and subsequent binding to 43S / negative regulation of JUN kinase activity / eukaryotic translation initiation factor 3 complex, eIF3e / cap-dependent translational initiation / eukaryotic translation initiation factor 3 complex, eIF3m / IRES-dependent viral translational initiation / translation reinitiation / RNA cap binding / eukaryotic translation initiation factor 4F complex / nuclear stress granule / Z-decay: degradation of maternal mRNAs by zygotically expressed factors / formation of cytoplasmic translation initiation complex / multi-eIF complex / eukaryotic translation initiation factor 3 complex / eukaryotic 43S preinitiation complex / translation factor activity, RNA binding / Deadenylation of mRNA / mRNA cap binding / eukaryotic 48S preinitiation complex / M-decay: degradation of maternal mRNAs by maternally stored factors / negative regulation of endoplasmic reticulum unfolded protein response / regulation of translational initiation / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / positive regulation of respiratory burst involved in inflammatory response / positive regulation of gastrulation / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / positive regulation of ubiquitin-protein transferase activity / protein tyrosine kinase inhibitor activity / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of DNA-templated transcription initiation / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / nucleolus organization / TNFR1-mediated ceramide production / negative regulation of RNA splicing / positive regulation of vascular associated smooth muscle cell apoptotic process / neural crest cell differentiation / metal-dependent deubiquitinase activity / supercoiled DNA binding / cytoplasmic translational initiation / NF-kappaB complex / negative regulation of DNA repair / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / rRNA modification in the nucleus and cytosol / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / negative regulation of bicellular tight junction assembly / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / negative regulation of phagocytosis / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / Formation of the ternary complex, and subsequently, the 43S complex / ion channel inhibitor activity / protein kinase A binding / laminin receptor activity / pigmentation / Ribosomal scanning and start codon recognition / positive regulation of mitochondrial depolarization / Translation initiation complex formation / negative regulation of Wnt signaling pathway / fibroblast growth factor binding / negative regulation of vascular associated smooth muscle cell proliferation / Protein hydroxylation / BH3 domain binding / monocyte chemotaxis / negative regulation of translational frameshifting / ribosomal small subunit binding / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / TOR signaling / mTORC1-mediated signalling / SARS-CoV-1 modulates host translation machinery / positive regulation of GTPase activity / iron-sulfur cluster binding / positive regulation of endothelial cell apoptotic process / regulation of cell division / cellular response to ethanol / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / negative regulation of protein binding / protein serine/threonine kinase inhibitor activity / Eukaryotic Translation Termination / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / BMP signaling pathway / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / negative regulation of respiratory burst involved in inflammatory response / ubiquitin ligase inhibitor activity / Viral mRNA Translation / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / negative regulation of ubiquitin-dependent protein catabolic process / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / positive regulation of signal transduction by p53 class mediator Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å | ||||||
Authors | Ye, X. / Huang, Z. / Li, Y. / Wang, M. / Cheng, J. | ||||||
| Funding support | 1items
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Citation | Journal: Cell Res / Year: 2024Title: Human tumor suppressor PDCD4 directly interacts with ribosomes to repress translation. Authors: Xianwen Ye / Zixuan Huang / Yi Li / Mengjiao Wang / Wanyu Meng / Maojian Miao / Jingdong Cheng / ![]() | ||||||
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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 | 8xxn.cif.gz | 2.6 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8xxn.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 8xxn.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xx/8xxn ftp://data.pdbj.org/pub/pdb/validation_reports/xx/8xxn | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 38754MC ![]() 8xxlC ![]() 8xxmC 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
+40S ribosomal protein ... , 31 types, 31 molecules SASBSDSESFSHSISKSLSPSQSRSSSTSUSVSXSaScSdSCSGSJSMSNSOSWSYSZSbSe
-Protein , 5 types, 5 molecules SgSfC14ACD
| #23: Protein | Mass: 35115.652 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P63244 |
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| #35: Protein | Mass: 18004.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62979 |
| #36: Protein | Mass: 12752.498 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P41567 |
| #37: Protein | Mass: 46207.824 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P60842, RNA helicase |
| #38: Protein | Mass: 51802.168 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q53EL6 |
-Eukaryotic translation initiation factor 3 subunit ... , 12 types, 12 molecules 3A3B3C3E3F3G3H3I3K3L3M3N
| #39: Protein | Mass: 166903.781 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q14152 |
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| #40: Protein | Mass: 92593.414 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P55884 |
| #41: Protein | Mass: 105503.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q99613 |
| #42: Protein | Mass: 52281.633 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P60228 |
| #43: Protein | Mass: 37593.645 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O00303, ubiquitinyl hydrolase 1 |
| #44: Protein | Mass: 35662.016 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O75821 |
| #45: Protein | Mass: 39979.277 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O15372 |
| #46: Protein | Mass: 36543.773 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q13347 |
| #47: Protein | Mass: 25083.619 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9UBQ5 |
| #48: Protein | Mass: 66803.734 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9Y262 |
| #49: Protein | Mass: 42555.832 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q7L2H7 |
| #50: Protein | Mass: 64060.758 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O15371 |
-Protein/peptide / RNA chain , 2 types, 2 molecules LnS2
| #1: Protein/peptide | Mass: 3473.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62945 |
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| #2: RNA chain | Mass: 602776.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: GenBank: 36162 |
-Non-polymers , 2 types, 26 molecules 


| #51: Chemical | ChemComp-MG / #52: Chemical | |
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-Details
| Has ligand of interest | 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: 43S ribosome with PDCD4 / Type: RIBOSOME / Entity ID: #1-#50 / Source: NATURAL |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
| 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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
| Specimen holder | Cryogen: NITROGEN |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 2878720 | ||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 12788 / Symmetry type: POINT | ||||||||||||||||||||||||||||||
| Atomic model building | Space: REAL | ||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 7A09 Accession code: 7A09 / Source name: PDB / Type: experimental model |
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Homo sapiens (human)
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FIELD EMISSION GUN
