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Open data
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Basic information
Entry | Database: PDB / ID: 7bl6 | ||||||||||||
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Title | 50S-ObgE-GMPPNP particle | ||||||||||||
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![]() | RIBOSOME / pre-50S / ribosome biogenesis / ribosome assembly | ||||||||||||
Function / homology | ![]() guanyl ribonucleotide binding / dormancy process / negative regulation of ribosome biogenesis / guanosine tetraphosphate binding / negative regulation of cytoplasmic translational initiation / ribosomal large subunit binding / transcriptional attenuation / positive regulation of ribosome biogenesis / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity ...guanyl ribonucleotide binding / dormancy process / negative regulation of ribosome biogenesis / guanosine tetraphosphate binding / negative regulation of cytoplasmic translational initiation / ribosomal large subunit binding / transcriptional attenuation / positive regulation of ribosome biogenesis / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / assembly of large subunit precursor of preribosome / ribosome assembly / cytosolic ribosome assembly / response to reactive oxygen species / chromosome segregation / translational initiation / regulation of cell growth / DNA-templated transcription termination / response to radiation / mRNA 5'-UTR binding / GDP binding / large ribosomal subunit / transferase activity / ribosome binding / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / GTPase activity / mRNA binding / GTP binding / magnesium ion binding / DNA binding / RNA binding / zinc ion binding / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4 Å | ||||||||||||
![]() | Hilal, T. / Nikolay, R. / Schmidt, S. / Spahn, C.M.T. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Snapshots of native pre-50S ribosomes reveal a biogenesis factor network and evolutionary specialization. Authors: Rainer Nikolay / Tarek Hilal / Sabine Schmidt / Bo Qin / David Schwefel / Carlos H Vieira-Vieira / Thorsten Mielke / Jörg Bürger / Justus Loerke / Kazuaki Amikura / Timo Flügel / Takuya ...Authors: Rainer Nikolay / Tarek Hilal / Sabine Schmidt / Bo Qin / David Schwefel / Carlos H Vieira-Vieira / Thorsten Mielke / Jörg Bürger / Justus Loerke / Kazuaki Amikura / Timo Flügel / Takuya Ueda / Matthias Selbach / Elke Deuerling / Christian M T Spahn / ![]() ![]() Abstract: Ribosome biogenesis is a fundamental multi-step cellular process that culminates in the formation of ribosomal subunits, whose production and modification are regulated by numerous biogenesis factors. ...Ribosome biogenesis is a fundamental multi-step cellular process that culminates in the formation of ribosomal subunits, whose production and modification are regulated by numerous biogenesis factors. In this study, we analyze physiologic prokaryotic ribosome biogenesis by isolating bona fide pre-50S subunits from an Escherichia coli strain with the biogenesis factor ObgE, affinity tagged at its native gene locus. Our integrative structural approach reveals a network of interacting biogenesis factors consisting of YjgA, RluD, RsfS, and ObgE on the immature pre-50S subunit. In addition, our study provides mechanistic insight into how the GTPase ObgE, in concert with other biogenesis factors, facilitates the maturation of the 50S functional core and reveals both conserved and divergent evolutionary features of ribosome biogenesis between prokaryotes and eukaryotes. | ||||||||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 2.1 MB | Display | ![]() |
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PDB format | ![]() | 1.6 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 12219MC ![]() 7bl2C ![]() 7bl3C ![]() 7bl4C ![]() 7bl5C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
+50S ribosomal protein ... , 29 types, 29 molecules gCDEFGJLNOQRSTUVWXYZ012KPMHd3
-RNA chain , 2 types, 2 molecules AB
#29: RNA chain | Mass: 941612.375 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#30: RNA chain | Mass: 38483.926 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein , 1 types, 1 molecules 9
#31: Protein | Mass: 43340.801 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P42641, Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement |
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-Non-polymers , 4 types, 32 molecules 






#33: Chemical | #34: Chemical | #35: Chemical | ChemComp-GNP / | #36: Water | ChemComp-HOH / | |
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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: in vitro reconstituted 50S-ObgE-GMPPNP / Type: RIBOSOME / Entity ID: #1-#32 / Source: NATURAL |
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Molecular weight | Value: 1.5 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 120000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 40 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON III (4k x 4k) / Num. of real images: 2179 |
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Processing
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 83761 | ||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 45746 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 268.67 Å2 | ||||||||||||||||||||||||||||||||
Refine LS restraints |
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