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- PDB-6ywe: The structure of the mitoribosome from Neurospora crassa in the P... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6ywe | |||||||||||||||
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Title | The structure of the mitoribosome from Neurospora crassa in the P/E tRNA bound state | |||||||||||||||
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![]() | TRANSLATION / Neurospora crassa / translating Mitoribosomes / tRNA / mRNA / mL108 | |||||||||||||||
Function / homology | ![]() 3-hydroxyisobutyryl-CoA hydrolase activity / mitochondrial genome maintenance / ribonuclease III activity / ATPase inhibitor activity / negative regulation of ATP-dependent activity / DNA strand exchange activity / mitochondrial large ribosomal subunit / mitochondrial small ribosomal subunit / mitochondrial ribosome / mitochondrial translation ...3-hydroxyisobutyryl-CoA hydrolase activity / mitochondrial genome maintenance / ribonuclease III activity / ATPase inhibitor activity / negative regulation of ATP-dependent activity / DNA strand exchange activity / mitochondrial large ribosomal subunit / mitochondrial small ribosomal subunit / mitochondrial ribosome / mitochondrial translation / superoxide dismutase activity / RNA processing / rRNA processing / large ribosomal subunit / double-stranded RNA binding / single-stranded DNA binding / small ribosomal subunit / transferase activity / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / mitochondrion / RNA binding / metal ion binding / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.99 Å | |||||||||||||||
![]() | Amunts, A. / Itoh, Y. / Naschberger, A. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Analysis of translating mitoribosome reveals functional characteristics of translation in mitochondria of fungi. Authors: Yuzuru Itoh / Andreas Naschberger / Narges Mortezaei / Johannes M Herrmann / Alexey Amunts / ![]() ![]() Abstract: Mitoribosomes are specialized protein synthesis machineries in mitochondria. However, how mRNA binds to its dedicated channel, and tRNA moves as the mitoribosomal subunit rotate with respect to each ...Mitoribosomes are specialized protein synthesis machineries in mitochondria. However, how mRNA binds to its dedicated channel, and tRNA moves as the mitoribosomal subunit rotate with respect to each other is not understood. We report models of the translating fungal mitoribosome with mRNA, tRNA and nascent polypeptide, as well as an assembly intermediate. Nicotinamide adenine dinucleotide (NAD) is found in the central protuberance of the large subunit, and the ATPase inhibitory factor 1 (IF) in the small subunit. The models of the active mitoribosome explain how mRNA binds through a dedicated protein platform on the small subunit, tRNA is translocated with the help of the protein mL108, bridging it with L1 stalk on the large subunit, and nascent polypeptide paths through a newly shaped exit tunnel involving a series of structural rearrangements. An assembly intermediate is modeled with the maturation factor Atp25, providing insight into the biogenesis of the mitoribosomal large subunit and translation regulation. | |||||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 9.6 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 10965MC ![]() 6yw5C ![]() 6ywsC ![]() 6ywvC ![]() 6ywxC ![]() 6ywyC 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
+RNA chain , 4 types, 4 molecules Abbaaee
+60S ribosomal protein ... , 3 types, 3 molecules eBD
+Related to ribosomal protein ... , 12 types, 12 molecules CEfKNUVWYaEEOO
+Protein , 44 types, 46 molecules FGgHLMPQRSX01235678i9bdAABBDDGGHHIIJJ...
+Ribosomal protein ... , 7 types, 7 molecules IJCCFFLLRRSS
+Mitochondrial ... , 3 types, 3 molecules ONNXX
+54S ribosomal protein ... , 2 types, 2 molecules Tc
+L51 S25 CI-B8 domain-containing ... , 2 types, 2 molecules 4j
+Probable ribosomal protein ... , 2 types, 2 molecules hMM
+37S ribosomal protein ... , 3 types, 3 molecules UUZZ11
+Non-polymers , 6 types, 302 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/SPM.gif)
![](data/chem/img/K.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/NAD.gif)
![](data/chem/img/ATP.gif)
![](data/chem/img/SPM.gif)
![](data/chem/img/K.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/NAD.gif)
![](data/chem/img/ATP.gif)
+Details
-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: Mitoribosome of Neurospora crassa in the P/E state / Type: RIBOSOME / Entity ID: #1-#82 / Source: NATURAL | |||||||||||||||||||||||||||||||||||
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Molecular weight | Experimental value: NO | |||||||||||||||||||||||||||||||||||
Source (natural) | Organism: ![]() | |||||||||||||||||||||||||||||||||||
Buffer solution | pH: 7.5 | |||||||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid type: Quantifoil R2/2 | |||||||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / 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 / Calibrated magnification: 130000 X / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 35 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 3172 |
EM imaging optics | Energyfilter name: GIF Quantum LS / Energyfilter slit width: 20 eV |
Image scans | Movie frames/image: 20 / Used frames/image: 1-20 |
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Processing
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.99 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 37908 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 28.28 Å2 | ||||||||||||||||||||||||
Refine LS restraints |
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