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Yorodumi- EMDB-4352: Cryo-EM structure of a late human pre-40S ribosomal subunit - Mature -
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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-4352 | |||||||||||||||
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| Title | Cryo-EM structure of a late human pre-40S ribosomal subunit - Mature | |||||||||||||||
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Keywords | 40S / pre-40S / ribosome biogenesis / RIBOSOME | |||||||||||||||
| Function / homology | Function and homology informationnegative regulation of endoplasmic reticulum unfolded protein response / 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 / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / protein tyrosine kinase inhibitor activity / positive regulation of ubiquitin-protein transferase activity / IRE1-RACK1-PP2A complex ...negative regulation of endoplasmic reticulum unfolded protein response / 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 / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / protein tyrosine kinase inhibitor activity / positive regulation of ubiquitin-protein transferase activity / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / nucleolus organization / positive regulation of DNA-templated transcription initiation / TNFR1-mediated ceramide production / negative regulation of RNA splicing / supercoiled DNA binding / neural crest cell differentiation / NF-kappaB complex / negative regulation of DNA repair / cytoplasmic translational initiation / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / negative regulation of bicellular tight junction assembly / regulation of establishment of cell polarity / ubiquitin-like protein conjugating enzyme binding / rRNA modification in the nucleus and cytosol / negative regulation of phagocytosis / erythrocyte homeostasis / Formation of the ternary complex, and subsequently, the 43S complex / cytoplasmic side of rough endoplasmic reticulum membrane / protein kinase A binding / ion channel inhibitor activity / laminin receptor activity / Ribosomal scanning and start codon recognition / pigmentation / Translation initiation complex formation / positive regulation of mitochondrial depolarization / negative regulation of Wnt signaling pathway / fibroblast growth factor binding / negative regulation of translational frameshifting / TOR signaling / monocyte chemotaxis / BH3 domain binding / Protein hydroxylation / SARS-CoV-1 modulates host translation machinery / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / iron-sulfur cluster binding / mTORC1-mediated signalling / positive regulation of GTPase activity / Peptide chain elongation / regulation of cell division / cellular response to ethanol / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Eukaryotic Translation Termination / protein serine/threonine kinase inhibitor activity / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / negative regulation of protein binding / Viral mRNA Translation / ubiquitin ligase inhibitor activity / negative regulation of respiratory burst involved in inflammatory response / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / positive regulation of signal transduction by p53 class mediator / negative regulation of ubiquitin-dependent protein catabolic process / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / Major pathway of rRNA processing in the nucleolus and cytosol / positive regulation of microtubule polymerization / regulation of translational fidelity / phagocytic cup / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / positive regulation of intrinsic apoptotic signaling pathway / spindle assembly / Protein methylation / Nuclear events stimulated by ALK signaling in cancer / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translation regulator activity / rough endoplasmic reticulum / positive regulation of cell cycle / ribosomal small subunit export from nucleus / laminin binding / translation initiation factor binding / gastrulation / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / DNA-(apurinic or apyrimidinic site) endonuclease activity / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / signaling adaptor activity / FLT3 signaling by CBL mutants / MDM2/MDM4 family protein binding / IRAK2 mediated activation of TAK1 complex / Prevention of phagosomal-lysosomal fusion / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis Similarity search - Function | |||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||||||||
Authors | Ameismeier M / Cheng J | |||||||||||||||
| Funding support | Germany, 4 items
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Citation | Journal: Nature / Year: 2018Title: Visualizing late states of human 40S ribosomal subunit maturation. Authors: Michael Ameismeier / Jingdong Cheng / Otto Berninghausen / Roland Beckmann / ![]() Abstract: The formation of eukaryotic ribosomal subunits extends from the nucleolus to the cytoplasm and entails hundreds of assembly factors. Despite differences in the pathways of ribosome formation, high- ...The formation of eukaryotic ribosomal subunits extends from the nucleolus to the cytoplasm and entails hundreds of assembly factors. Despite differences in the pathways of ribosome formation, high-resolution structural information has been available only from fungi. Here we present cryo-electron microscopy structures of late-stage human 40S assembly intermediates, representing one state reconstituted in vitro and five native states that range from nuclear to late cytoplasmic. The earliest particles reveal the position of the biogenesis factor RRP12 and distinct immature rRNA conformations that accompany the formation of the 40S subunit head. Molecular models of the late-acting assembly factors TSR1, RIOK1, RIOK2, ENP1, LTV1, PNO1 and NOB1 provide mechanistic details that underlie their contribution to a sequential 40S subunit assembly. The NOB1 architecture displays an inactive nuclease conformation that requires rearrangement of the PNO1-bound 3' rRNA, thereby coordinating the final rRNA folding steps with site 3 cleavage. | |||||||||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
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Downloads & links
-EMDB archive
| Map data | emd_4352.map.gz | 166.5 MB | EMDB map data format | |
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| Header (meta data) | emd-4352-v30.xml emd-4352.xml | 49.8 KB 49.8 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_4352_fsc.xml | 12.8 KB | Display | FSC data file |
| Images | emd_4352.png | 152.7 KB | ||
| Filedesc metadata | emd-4352.cif.gz | 11.3 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-4352 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4352 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6g5hMC ![]() 4337C ![]() 4348C ![]() 4349C ![]() 4350C ![]() 4351C ![]() 4353C ![]() 6g18C ![]() 6g4sC ![]() 6g4wC ![]() 6g51C ![]() 6g53C ![]() 6g5iC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_4352.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.084 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : Cryo-EM structure of a late human pre-40S ribosomal subunit - Mature
+Supramolecule #1: Cryo-EM structure of a late human pre-40S ribosomal subunit - Mature
+Macromolecule #1: 18S ribosomal RNA
+Macromolecule #2: 40S ribosomal protein SA
+Macromolecule #3: 40S ribosomal protein S3a
+Macromolecule #4: 40S ribosomal protein S2
+Macromolecule #5: 40S ribosomal protein S4, X isoform
+Macromolecule #6: 40S ribosomal protein S6
+Macromolecule #7: 40S ribosomal protein S7
+Macromolecule #8: 40S ribosomal protein S8
+Macromolecule #9: 40S ribosomal protein S9
+Macromolecule #10: 40S ribosomal protein S11
+Macromolecule #11: 40S ribosomal protein S13
+Macromolecule #12: 40S ribosomal protein S14
+Macromolecule #13: 40S ribosomal protein S21
+Macromolecule #14: 40S ribosomal protein S15a
+Macromolecule #15: 40S ribosomal protein S23
+Macromolecule #16: 40S ribosomal protein S24
+Macromolecule #17: 40S ribosomal protein S26
+Macromolecule #18: 40S ribosomal protein S27
+Macromolecule #19: 40S ribosomal protein S29
+Macromolecule #20: 40S ribosomal protein S30
+Macromolecule #21: 60S ribosomal protein L41
+Macromolecule #22: 40S ribosomal protein S3
+Macromolecule #23: 40S ribosomal protein S5
+Macromolecule #24: 40S ribosomal protein S10
+Macromolecule #25: 40S ribosomal protein S12
+Macromolecule #26: 40S ribosomal protein S15
+Macromolecule #27: 40S ribosomal protein S16
+Macromolecule #28: 40S ribosomal protein S17
+Macromolecule #29: 40S ribosomal protein S18
+Macromolecule #30: 40S ribosomal protein S19
+Macromolecule #31: 40S ribosomal protein S20
+Macromolecule #32: 40S ribosomal protein S25
+Macromolecule #33: 40S ribosomal protein S28
+Macromolecule #34: Ribosomal protein S27a
+Macromolecule #35: Receptor of activated protein C kinase 1
+Macromolecule #36: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.6 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: FEI FALCON II (4k x 4k) / Average electron dose: 2.5 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi


Keywords
Homo sapiens (human)
Authors
Germany, 4 items
Citation
UCSF Chimera





















































Z (Sec.)
Y (Row.)
X (Col.)





















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