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- PDB-6ylf: Rix1-Rea1 pre-60S particle - Rea1, body 3 (rigid body refinement,... -
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Basic information
Entry | Database: PDB / ID: 6ylf | ||||||
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Title | Rix1-Rea1 pre-60S particle - Rea1, body 3 (rigid body refinement, composite structure of Rea1 ring and tail) | ||||||
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![]() | RIBOSOME / pre-60S / Biogenesis / LSU / Large subunit / ribosome assembly | ||||||
Function / homology | ![]() protein-RNA complex remodeling / regulation of ribosomal subunit export from nucleus / preribosome, large subunit precursor / ribosomal large subunit export from nucleus / ribosomal large subunit assembly / rRNA processing / nucleolus / ATP hydrolysis activity / mitochondrion / nucleoplasm ...protein-RNA complex remodeling / regulation of ribosomal subunit export from nucleus / preribosome, large subunit precursor / ribosomal large subunit export from nucleus / ribosomal large subunit assembly / rRNA processing / nucleolus / ATP hydrolysis activity / mitochondrion / nucleoplasm / ATP binding / nucleus Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.2 Å | ||||||
![]() | Kater, L. / Beckmann, R. | ||||||
![]() | ![]() Title: Construction of the Central Protuberance and L1 Stalk during 60S Subunit Biogenesis. Authors: Lukas Kater / Valentin Mitterer / Matthias Thoms / Jingdong Cheng / Otto Berninghausen / Roland Beckmann / Ed Hurt / ![]() Abstract: Ribosome assembly is driven by numerous assembly factors, including the Rix1 complex and the AAA ATPase Rea1. These two assembly factors catalyze 60S maturation at two distinct states, triggering ...Ribosome assembly is driven by numerous assembly factors, including the Rix1 complex and the AAA ATPase Rea1. These two assembly factors catalyze 60S maturation at two distinct states, triggering poorly understood large-scale structural transitions that we analyzed by cryo-electron microscopy. Two nuclear pre-60S intermediates were discovered that represent previously unknown states after Rea1-mediated removal of the Ytm1-Erb1 complex and reveal how the L1 stalk develops from a pre-mature nucleolar to a mature-like nucleoplasmic state. A later pre-60S intermediate shows how the central protuberance arises, assisted by the nearby Rix1-Rea1 machinery, which was solved in its pre-ribosomal context to molecular resolution. This revealed a Rix1-Ipi3 tetramer anchored to the pre-60S via Ipi1, strategically positioned to monitor this decisive remodeling. These results are consistent with a general underlying principle that temporarily stabilized immature RNA domains are successively remodeled by assembly factors, thereby ensuring failsafe assembly progression. | ||||||
History |
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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 | ![]() | 565.4 KB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 692.7 KB | Display | ![]() |
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Full document | ![]() | 696 KB | Display | |
Data in XML | ![]() | 73.4 KB | Display | |
Data in CIF | ![]() | 122.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 10837MC ![]() 6yleC ![]() 6ylgC ![]() 6ylhC ![]() 6ylxC ![]() 6ylyC 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
#1: Protein | Mass: 559951.438 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#2: Protein | Mass: 57106.781 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-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: Rix1-Rea1 pre-60S assembly particle - Rea1 with the Rsa4-UBL domain Type: RIBOSOME Details: Rix1-TAP Flag-Rea1 derived pre-60S assembly complex Entity ID: all / Source: NATURAL |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
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 R3/3 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 90 % / 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: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 10 sec. / Electron dose: 75 e/Å2 / Detector mode: INTEGRATING / Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Num. of grids imaged: 1 |
Image scans | Sampling size: 5 µm / Width: 3838 / Height: 3710 / Movie frames/image: 48 / Used frames/image: 1-48 |
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Processing
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CTF correction | Type: NONE | ||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 273799 | ||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 55397 / Algorithm: FOURIER SPACE / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||||||
Atomic model building |
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