[English] 日本語
Yorodumi- EMDB-32806: Cryo-EM structure of a human pre-40S ribosomal subunit - State RR... -
+
Open data
-
Basic information
| Entry | ![]() | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Title | Cryo-EM structure of a human pre-40S ribosomal subunit - State RRP12-B2 | |||||||||
Map data | ||||||||||
Sample |
| |||||||||
Keywords | ribosome biogenesis / 40S ribosome / RIBOSOME | |||||||||
| Function / homology | Function and homology informationregulation of protein localization to nucleolus / trophectodermal cell differentiation / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / negative regulation of RNA splicing / neural crest cell differentiation / positive regulation of ubiquitin-protein transferase activity / negative regulation of bicellular tight junction assembly / rRNA modification in the nucleus and cytosol ...regulation of protein localization to nucleolus / trophectodermal cell differentiation / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / negative regulation of RNA splicing / neural crest cell differentiation / positive regulation of ubiquitin-protein transferase activity / negative regulation of bicellular tight junction assembly / rRNA modification in the nucleus and cytosol / U3 snoRNA binding / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / laminin receptor activity / negative regulation of ubiquitin protein ligase activity / snoRNA binding / preribosome, small subunit precursor / Ribosomal scanning and start codon recognition / Translation initiation complex formation / fibroblast growth factor binding / monocyte chemotaxis / TOR signaling / Protein hydroxylation / SARS-CoV-1 modulates host translation machinery / cellular response to ethanol / mTORC1-mediated signalling / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / negative regulation of ubiquitin-dependent protein catabolic process / positive regulation of signal transduction by p53 class mediator / Viral mRNA Translation / negative regulation of respiratory burst involved in inflammatory response / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / 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 / regulation of translational fidelity / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / 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) / Protein methylation / Nuclear events stimulated by ALK signaling in cancer / laminin binding / rough endoplasmic reticulum / ribosomal small subunit export from nucleus / positive regulation of cell cycle / translation regulator activity / translation initiation factor binding / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Maturation of protein E / Maturation of protein E / MDM2/MDM4 family protein binding / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / antiviral innate immune response / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / visual perception / Mitotic Prometaphase / liver regeneration / Endosomal Sorting Complex Required For Transport (ESCRT) / Membrane binding and targetting of GAG proteins / Negative regulation of FLT3 / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / EML4 and NUDC in mitotic spindle formation / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Constitutive Signaling by NOTCH1 HD Domain Mutants / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / cytosolic ribosome / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1,TRAF6-dependent induction of TAK1 complex / stress granule assembly / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / RNA endonuclease activity / Downregulation of ERBB4 signaling / Regulation of FZD by ubiquitination / APC-Cdc20 mediated degradation of Nek2A / p75NTR recruits signalling complexes / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / TRAF6-mediated induction of TAK1 complex within TLR4 complex / Regulation of pyruvate metabolism / NF-kB is activated and signals survival / Regulation of innate immune responses to cytosolic DNA / Downregulation of ERBB2:ERBB3 signaling / Pexophagy Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
Authors | Cheng J / Lau B / Thoms M / Ameismeier M / Berninghausen O / Hurt E / Beckmann R | |||||||||
| Funding support | 1 items
| |||||||||
Citation | Journal: Nucleic Acids Res / Year: 2022Title: The nucleoplasmic phase of pre-40S formation prior to nuclear export. Authors: Jingdong Cheng / Benjamin Lau / Matthias Thoms / Michael Ameismeier / Otto Berninghausen / Ed Hurt / Roland Beckmann / ![]() Abstract: Biogenesis of the small ribosomal subunit in eukaryotes starts in the nucleolus with the formation of a 90S precursor and ends in the cytoplasm. Here, we elucidate the enigmatic structural ...Biogenesis of the small ribosomal subunit in eukaryotes starts in the nucleolus with the formation of a 90S precursor and ends in the cytoplasm. Here, we elucidate the enigmatic structural transitions of assembly intermediates from human and yeast cells during the nucleoplasmic maturation phase. After dissociation of all 90S factors, the 40S body adopts a close-to-mature conformation, whereas the 3' major domain, later forming the 40S head, remains entirely immature. A first coordination is facilitated by the assembly factors TSR1 and BUD23-TRMT112, followed by re-positioning of RRP12 that is already recruited early to the 90S for further head rearrangements. Eventually, the uS2 cluster, CK1 (Hrr25 in yeast) and the export factor SLX9 associate with the pre-40S to provide export competence. These exemplary findings reveal the evolutionary conserved mechanism of how yeast and humans assemble the 40S ribosomal subunit, but reveal also a few minor differences. | |||||||||
| History |
|
-
Structure visualization
| Supplemental images |
|---|
-
Downloads & links
-EMDB archive
| Map data | emd_32806.map.gz | 96.2 MB | EMDB map data format | |
|---|---|---|---|---|
| Header (meta data) | emd-32806-v30.xml emd-32806.xml | 50.4 KB 50.4 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_32806_fsc.xml | 12.7 KB | Display | FSC data file |
| Images | emd_32806.png | 157.9 KB | ||
| Filedesc metadata | emd-32806.cif.gz | 12.3 KB | ||
| Others | emd_32806_additional_1.map.gz emd_32806_additional_2.map.gz | 162.1 MB 162.7 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-32806 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-32806 | HTTPS FTP |
-Validation report
| Summary document | emd_32806_validation.pdf.gz | 474.8 KB | Display | EMDB validaton report |
|---|---|---|---|---|
| Full document | emd_32806_full_validation.pdf.gz | 474.3 KB | Display | |
| Data in XML | emd_32806_validation.xml.gz | 13.3 KB | Display | |
| Data in CIF | emd_32806_validation.cif.gz | 17.9 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-32806 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-32806 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7wtzMC ![]() 7wtnC ![]() 7wtoC ![]() 7wtpC ![]() 7wtqC ![]() 7wtrC ![]() 7wtsC ![]() 7wttC ![]() 7wtuC ![]() 7wtvC ![]() 7wtwC ![]() 7wtxC ![]() 7wu0C M: atomic model generated by this map C: citing same article ( |
|---|---|
| Similar structure data | Similarity search - Function & homology F&H Search |
-
Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
|---|---|
| Related items in Molecule of the Month |
-
Map
| File | Download / File: emd_32806.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.059 Å | ||||||||||||||||||||||||||||||||||||
| Density |
| ||||||||||||||||||||||||||||||||||||
| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
|
-Supplemental data
-Additional map: #1
| File | emd_32806_additional_1.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & Slices |
| ||||||||||||
| Density Histograms |
-Additional map: #2
| File | emd_32806_additional_2.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & Slices |
| ||||||||||||
| Density Histograms |
-
Sample components
+Entire : Yeast pre-40S ribosomal subunit
+Supramolecule #1: Yeast pre-40S ribosomal subunit
+Macromolecule #1: 18S rRNA
+Macromolecule #2: 40S ribosomal protein S5
+Macromolecule #3: 40S ribosomal protein S12
+Macromolecule #4: 40S ribosomal protein S15
+Macromolecule #5: 40S ribosomal protein S16
+Macromolecule #6: 40S ribosomal protein S17
+Macromolecule #7: 40S ribosomal protein S18
+Macromolecule #8: 40S ribosomal protein S19
+Macromolecule #9: 40S ribosomal protein S25
+Macromolecule #10: 40S ribosomal protein S28
+Macromolecule #11: Ubiquitin-40S ribosomal protein S27a
+Macromolecule #12: 40S ribosomal protein SA
+Macromolecule #13: 40S ribosomal protein S3a
+Macromolecule #14: 40S ribosomal protein S2
+Macromolecule #15: 40S ribosomal protein S4, X isoform
+Macromolecule #16: 40S ribosomal protein S6
+Macromolecule #17: 40S ribosomal protein S7
+Macromolecule #18: 40S ribosomal protein S8
+Macromolecule #19: 40S ribosomal protein S9
+Macromolecule #20: 40S ribosomal protein S11
+Macromolecule #21: 40S ribosomal protein S13
+Macromolecule #22: 40S ribosomal protein S14
+Macromolecule #23: 40S ribosomal protein S21
+Macromolecule #24: 40S ribosomal protein S15a
+Macromolecule #25: 40S ribosomal protein S23
+Macromolecule #26: 40S ribosomal protein S24
+Macromolecule #27: 40S ribosomal protein S27
+Macromolecule #28: 40S ribosomal protein S30
+Macromolecule #29: RNA-binding protein PNO1
+Macromolecule #30: RNA-binding protein NOB1
+Macromolecule #31: Pre-rRNA-processing protein TSR1 homolog
+Macromolecule #32: Bystin
+Macromolecule #33: Protein LTV1 homolog
+Macromolecule #34: RRP12-like protein
+Macromolecule #35: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
|---|---|
Processing | single particle reconstruction |
| Aggregation state | particle |
-
Sample preparation
| Buffer | pH: 7.4 |
|---|---|
| Vitrification | Cryogen name: ETHANE |
-
Electron microscopy
| Microscope | FEI TITAN KRIOS |
|---|---|
| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average electron dose: 44.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.8 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
Movie
Controller
About Yorodumi



Keywords
Homo sapiens (human)
Authors
Citation



































































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




































Processing
FIELD EMISSION GUN

