[English] 日本語
![](img/lk-miru.gif)
- PDB-6r87: Yeast Vms1 (Q295L)-60S ribosomal subunit complex (pre-state witho... -
+
Open data
-
Basic information
Entry | Database: PDB / ID: 6r87 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | Yeast Vms1 (Q295L)-60S ribosomal subunit complex (pre-state without Arb1) | ||||||||||||
![]() |
| ||||||||||||
![]() | RIBOSOME / 60S ribosomal subunit / Vms1 / Tif6 | ||||||||||||
Function / homology | ![]() catalytic activity, acting on a tRNA / Cdc48p-Npl4p-Vms1p AAA ATPase complex / mitochondria-associated ubiquitin-dependent protein catabolic process / nuclear protein quality control by the ubiquitin-proteasome system / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / aminoacyl-tRNA hydrolase activity / pre-mRNA 5'-splice site binding / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / protein quality control for misfolded or incompletely synthesized proteins ...catalytic activity, acting on a tRNA / Cdc48p-Npl4p-Vms1p AAA ATPase complex / mitochondria-associated ubiquitin-dependent protein catabolic process / nuclear protein quality control by the ubiquitin-proteasome system / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / aminoacyl-tRNA hydrolase activity / pre-mRNA 5'-splice site binding / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / protein quality control for misfolded or incompletely synthesized proteins / maturation of 5.8S rRNA / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / ribosomal large subunit binding / Formation of a pool of free 40S subunits / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / negative regulation of mRNA splicing, via spliceosome / L13a-mediated translational silencing of Ceruloplasmin expression / preribosome, large subunit precursor / translational elongation / ribosomal large subunit export from nucleus / 90S preribosome / protein-RNA complex assembly / regulation of translational fidelity / ribosomal subunit export from nucleus / ERAD pathway / translational termination / RNA endonuclease activity / translation initiation factor activity / maturation of LSU-rRNA / rescue of stalled ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / ribosomal large subunit biogenesis / translational initiation / macroautophagy / maintenance of translational fidelity / modification-dependent protein catabolic process / rRNA processing / protein tag activity / ribosome biogenesis / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / Hydrolases; Acting on ester bonds / rRNA binding / negative regulation of translation / ribosome / protein ubiquitination / structural constituent of ribosome / translation / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / endoplasmic reticulum membrane / nucleolus / mitochondrion / RNA binding / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||||||||
![]() | Su, T. / Izawa, T. / Cheng, J. / Yamashita, Y. / Berninghausen, O. / Inada, T. / Neupert, W. / Beckmann, R. | ||||||||||||
Funding support | ![]()
| ||||||||||||
![]() | ![]() Title: Structure and function of Vms1 and Arb1 in RQC and mitochondrial proteome homeostasis. Authors: Ting Su / Toshiaki Izawa / Matthias Thoms / Yui Yamashita / Jingdong Cheng / Otto Berninghausen / F Ulrich Hartl / Toshifumi Inada / Walter Neupert / Roland Beckmann / ![]() ![]() Abstract: Ribosome-associated quality control (RQC) provides a rescue pathway for eukaryotic cells to process faulty proteins after translational stalling of cytoplasmic ribosomes. After dissociation of ...Ribosome-associated quality control (RQC) provides a rescue pathway for eukaryotic cells to process faulty proteins after translational stalling of cytoplasmic ribosomes. After dissociation of ribosomes, the stalled tRNA-bound peptide remains associated with the 60S subunit and extended by Rqc2 by addition of C-terminal alanyl and threonyl residues (CAT tails), whereas Vms1 catalyses cleavage and release of the peptidyl-tRNA before or after addition of CAT tails. In doing so, Vms1 counteracts CAT-tailing of nuclear-encoded mitochondrial proteins that otherwise drive aggregation and compromise mitochondrial and cellular homeostasis. Here we present structural and functional insights into the interaction of Saccharomyces cerevisiae Vms1 with 60S subunits in pre- and post-peptidyl-tRNA cleavage states. Vms1 binds to 60S subunits with its Vms1-like release factor 1 (VLRF1), zinc finger and ankyrin domains. VLRF1 overlaps with the Rqc2 A-tRNA position and interacts with the ribosomal A-site, projecting its catalytic GSQ motif towards the CCA end of the tRNA, its Y285 residue dislodging the tRNA A73 for nucleolytic cleavage. Moreover, in the pre-state, we found the ABCF-type ATPase Arb1 in the ribosomal E-site, which stabilizes the delocalized A73 of the peptidyl-tRNA and stimulates Vms1-dependent tRNA cleavage. Our structural analysis provides mechanistic insights into the interplay of the RQC factors Vms1, Rqc2 and Arb1 and their role in the protection of mitochondria from the aggregation of toxic proteins. | ||||||||||||
History |
|
-
Structure visualization
Movie |
![]() |
---|---|
Structure viewer | Molecule: ![]() ![]() |
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 2.9 MB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
---|
-Related structure data
Related structure data | ![]() 4753MC ![]() 4751C ![]() 4752C ![]() 6r84C ![]() 6r86C M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
Components
-Protein , 4 types, 4 molecules RXor
#1: Protein | Mass: 53690.668 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: VMS1, YDR049W / Production host: ![]() ![]() |
---|---|
#2: Protein | Mass: 24156.150 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#15: Protein | Mass: 6032.321 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#26: Protein | Mass: 21715.035 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
+60S ribosomal protein ... , 41 types, 41 molecules iJjKk7lMmNnOpQ5SsTUVWPxYZabCcD...
-RNA chain , 4 types, 4 molecules 34B1
#28: RNA chain | Mass: 38951.105 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
---|---|
#30: RNA chain | Mass: 50682.922 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#33: RNA chain | Mass: 24502.477 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#49: RNA chain | Mass: 1071848.375 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Non-polymers , 1 types, 1 molecules ![](data/chem/img/ZN.gif)
#50: Chemical | ChemComp-ZN / |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
Component |
| ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||
Source (natural) |
| ||||||||||||||||||||||||||||
Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||||||||||||||
Buffer solution | pH: 7.4 | ||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 2.8 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k) |
-
Processing
EM software |
| ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Type: NONE | ||||||||||||||||||
3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 52740 / Symmetry type: POINT |