+Open data
-Basic information
Entry | Database: PDB / ID: 6hyp | ||||||
---|---|---|---|---|---|---|---|
Title | Rea1 Wild type ADP state (AAA+ ring part) | ||||||
Components | Midasin,Midasin | ||||||
Keywords | MOTOR PROTEIN / Rea1 / Mdn1 / Midasin / AAA+ protein / ribosome maturation / molecular machine | ||||||
Function / homology | Function and homology information protein-RNA complex remodeling / regulation of ribosomal subunit export from nucleus / preribosome, large subunit precursor / ribosomal large subunit export from nucleus / rRNA processing / ribosomal large subunit assembly / 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 / rRNA processing / ribosomal large subunit assembly / nucleolus / ATP hydrolysis activity / mitochondrion / nucleoplasm / ATP binding / nucleus Similarity search - Function | ||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å | ||||||
Authors | Sosnowski, P. / Urnavicius, L. / Boland, A. / Fagiewicz, R. / Busselez, J. / Papai, G. / Schmidt, H. | ||||||
Funding support | France, 1items
| ||||||
Citation | Journal: Elife / Year: 2018 Title: The CryoEM structure of the ribosome maturation factor Rea1. Authors: Piotr Sosnowski / Linas Urnavicius / Andreas Boland / Robert Fagiewicz / Johan Busselez / Gabor Papai / Helgo Schmidt / Abstract: The biogenesis of 60S ribosomal subunits is initiated in the nucleus where rRNAs and proteins form pre-60S particles. These pre-60S particles mature by transiently interacting with various assembly ...The biogenesis of 60S ribosomal subunits is initiated in the nucleus where rRNAs and proteins form pre-60S particles. These pre-60S particles mature by transiently interacting with various assembly factors. The ~5000 amino-acid AAA+ ATPase Rea1 (or Midasin) generates force to mechanically remove assembly factors from pre-60S particles, which promotes their export to the cytosol. Here we present three Rea1 cryoEM structures. We visualise the Rea1 engine, a hexameric ring of AAA+ domains, and identify an α-helical bundle of AAA2 as a major ATPase activity regulator. The α-helical bundle interferes with nucleotide-induced conformational changes that create a docking site for the substrate binding MIDAS domain on the AAA +ring. Furthermore, we reveal the architecture of the Rea1 linker, which is involved in force generation and extends from the AAA+ ring. The data presented here provide insights into the mechanism of one of the most complex ribosome maturation factors. | ||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6hyp.cif.gz | 400 KB | Display | PDBx/mmCIF format |
---|---|---|---|---|
PDB format | pdb6hyp.ent.gz | 254.4 KB | Display | PDB format |
PDBx/mmJSON format | 6hyp.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6hyp_validation.pdf.gz | 857.9 KB | Display | wwPDB validaton report |
---|---|---|---|---|
Full document | 6hyp_full_validation.pdf.gz | 860.7 KB | Display | |
Data in XML | 6hyp_validation.xml.gz | 57.8 KB | Display | |
Data in CIF | 6hyp_validation.cif.gz | 93.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/hy/6hyp ftp://data.pdbj.org/pub/pdb/validation_reports/hy/6hyp | HTTPS FTP |
-Related structure data
Related structure data | 0309MC 0308C 0328C 0329C 0330C 6hydC 6i26C 6i27C C: citing same article (ref.) M: map data used to model this data |
---|---|
Similar structure data |
-Links
-Assembly
Deposited unit |
|
---|---|
1 |
|
-Components
#1: Protein | Mass: 548631.312 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: MDN1, REA1, YLR106C, L2901, L8004.13 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q12019 |
---|---|
#2: Chemical |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Rea1 (MIDASIN) ring with ADP / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT | ||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) | ||||||||||||||||||||||||||||||
Source (recombinant) | Organism: Saccharomyces cerevisiae (brewer's yeast) | ||||||||||||||||||||||||||||||
Buffer solution | pH: 7.2 / Details: ADP was added 5 minute before the plunging | ||||||||||||||||||||||||||||||
Buffer component |
| ||||||||||||||||||||||||||||||
Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Vitrification | Instrument: HOMEMADE PLUNGER / Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
---|---|
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 magnification: 105000 X / Calibrated magnification: 105000 X / Nominal defocus max: 3400 nm / Nominal defocus min: 1800 nm / Cs: 0.01 mm / Alignment procedure: ZEMLIN TABLEAU |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Residual tilt: 12 mradians |
Image recording | Average exposure time: 0.2 sec. / Electron dose: 46.2 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 14 / Num. of real images: 23230 |
EM imaging optics | Energyfilter name: GIF Quantum LS / Energyfilter slit width: 20 eV / Spherical aberration corrector: Titan Krios Cs Corrector |
Image scans | Sampling size: 5 µm / Width: 3712 / Height: 3840 / Movie frames/image: 35 / Used frames/image: 2-35 |
-Processing
Software | Name: PHENIX / Version: 1.13_2998: / Classification: refinement | ||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
EM software |
| ||||||||||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 76071 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
Refinement | Highest resolution: 4.4 Å | ||||||||||||||||||||||||||||||||
Refine LS restraints |
|