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- PDB-9mhp: cryo-EM structure of full-length and internally HIS-tagged yeast ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 9mhp | |||||||||||||||||||||||||||
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Title | cryo-EM structure of full-length and internally HIS-tagged yeast E3 ubiquitin ligase Tom1p, in a closed-conformation state with helical repeat solenoid architecture | |||||||||||||||||||||||||||
![]() | E3 ubiquitin-protein ligase TOM1 | |||||||||||||||||||||||||||
![]() | GENE REGULATION / cell cycle / stress response / solenoid / E3 ubiquitin ligase / RNA | |||||||||||||||||||||||||||
Function / homology | ![]() endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / HECT-type E3 ubiquitin transferase / nucleocytoplasmic transport / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of cell size / nucleus organization / Antigen processing: Ubiquitination & Proteasome degradation / mRNA transport / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) ...endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / HECT-type E3 ubiquitin transferase / nucleocytoplasmic transport / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of cell size / nucleus organization / Antigen processing: Ubiquitination & Proteasome degradation / mRNA transport / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Neutrophil degranulation / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / mitotic cell cycle / ubiquitin-dependent protein catabolic process / protein ubiquitination / nucleolus / nucleus / cytoplasm Similarity search - Function | |||||||||||||||||||||||||||
Biological species | ![]() ![]() | |||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.97 Å | |||||||||||||||||||||||||||
![]() | Madrigal, J.A. / Schubert, H.L. | |||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Tom1p ubiquitin ligase structure, interaction with Spt6p, and function in maintaining normal transcript levels and the stability of chromatin in promoters Authors: Madrigal, J.A. / Schubert, H.L. / Sdano, M.A. / McCullough, L. / Connell, Z. / Formosa, T.G. / Hill, C.P. | |||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 911.1 KB | Display | ![]() |
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PDB format | ![]() | 746.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.3 MB | Display | ![]() |
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Full document | ![]() | 1.4 MB | Display | |
Data in XML | ![]() | 79.9 KB | Display | |
Data in CIF | ![]() | 119.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 48280MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 376741.594 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Internal tag insertion between 1074-1075 of the native sequence: SGGGGGGSRHHHHHHHHHHHH Source: (gene. exp.) ![]() ![]() Strain: 10293-12XHIS / Gene: TOM1, SSR2, YDR457W, D8035.1 / Production host: ![]() ![]() References: UniProt: Q03280, HECT-type E3 ubiquitin transferase |
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Has protein modification | N |
-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: yeast E3 ubiquitin ligase Tom1p / Type: COMPLEX Details: Full-length and internally HIS-tagged yeast E3 ubiquitin ligase Tom1p Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: .377 MDa / Experimental value: YES |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 Details: 5 percent glycerol, 50 mM TrisCl pH 7.5, 150 mM NaCl, 2 mM DTT |
Specimen | Conc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: Specimens were prepared on Quantifoil R 2/2 Cu300 grids after glow discharge for 1 minute at 25 mA. Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/2 |
Vitrification | Instrument: FEI VITROBOT MARK I / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 4 K |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: -2000 nm / Nominal defocus min: -800 nm |
Image recording | Electron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
EM software | Name: PHENIX / Version: 1.20.1_4487 / Category: model refinement | ||||||||||||||||||||||||
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CTF correction | Details: Movies were motion-corrected for all 3 datasets using CryoSPARC Patch Motion Correction. CTF estimation was performed on motion-corrected micrographs using CryoSPARC Patch CTF with default parameters applied. Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Particle selection | Details: 3,522 of 3,630 micrographs were selected for particle picking from grids containing Tom1pHis. Initial blob picks were curated via 2D-classification and 3D ab initio jobs to create 60 2D ...Details: 3,522 of 3,630 micrographs were selected for particle picking from grids containing Tom1pHis. Initial blob picks were curated via 2D-classification and 3D ab initio jobs to create 60 2D templates for template-picking. 1,434,189 template-picked particles (lowpass filter 15 A) were narrowed through 6 rounds of 2D classification to give 201,930 particles, which were input to ab initio volume creation with 4 classes. 41,253 particles from one of these classes were used to refine the open/intermediate conformations and 160,667 total particles from the remaining 3 classes were combined for further refinement of the closed conformation map. | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.97 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 142020 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Highest resolution: 3.97 Å Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
Refine LS restraints |
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