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- PDB-8pko: The ERAD misfolded glycoprotein checkpoint complex from Chaetomiu... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8pko | ||||||||||||
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Title | The ERAD misfolded glycoprotein checkpoint complex from Chaetomium thermophilum (EDEM:PDI heterodimer). | ||||||||||||
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![]() | OXIDOREDUCTASE / mannosidase / disulfide isomerase / glycoprotein degradation / erad / misfolding | ||||||||||||
Function / homology | ![]() mannosyl-oligosaccharide 1,2-alpha-mannosidase activity / protein disulfide-isomerase / protein disulfide isomerase activity / protein glycosylation / Hydrolases; Glycosylases; Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds / response to endoplasmic reticulum stress / serine-type endopeptidase inhibitor activity / protein folding / carbohydrate metabolic process / endoplasmic reticulum lumen ...mannosyl-oligosaccharide 1,2-alpha-mannosidase activity / protein disulfide-isomerase / protein disulfide isomerase activity / protein glycosylation / Hydrolases; Glycosylases; Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds / response to endoplasmic reticulum stress / serine-type endopeptidase inhibitor activity / protein folding / carbohydrate metabolic process / endoplasmic reticulum lumen / calcium ion binding / cell surface / endoplasmic reticulum / extracellular space / membrane / metal ion binding Similarity search - Function | ||||||||||||
Biological species | ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å | ||||||||||||
![]() | Roversi, P. / Hitchman, C.J. / Lia, A. / Bayo, Y. | ||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: The ERAD misfolded glycoprotein checkpoint complex from Chaetomium thermophilum (EDEM:PDI heterodimer). Authors: Roversi, P. / Hitchman, C.J. / Lia, A. / Bayo, Y. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 377.3 KB | Display | ![]() |
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PDB format | ![]() | 236.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.7 MB | Display | ![]() |
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Full document | ![]() | 1.8 MB | Display | |
Data in XML | ![]() | 55.9 KB | Display | |
Data in CIF | ![]() | 82.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 17749MC 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
-Protein , 2 types, 2 molecules AB
#1: Protein | Mass: 142162.812 Da / Num. of mol.: 1 / Mutation: N-term truncation and GFP fusion Source method: isolated from a genetically manipulated source Details: Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium ...Details: Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM),Chaetomium thermophilum Endoplasmic reticulum degradation enhancing mannosidase (CtEDEM) Source: (gene. exp.) ![]() ![]() References: UniProt: P42212, UniProt: G0SCX7, Hydrolases; Glycosylases; Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds |
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#2: Protein | Mass: 55841.367 Da / Num. of mol.: 1 / Mutation: Deletion of Cterminal HDEL Source method: isolated from a genetically manipulated source Details: Chaetomium thermophilum Endoplasmic reticulum degradation enhancing protein disulfide isomerase (CtPDI) Source: (gene. exp.) ![]() ![]() |
-Sugars , 4 types, 6 molecules ![](data/chem/img/NAG.gif)
![](data/chem/img/MAN.gif)
![](data/chem/img/MAN.gif)
#3: Polysaccharide | #4: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | Source method: isolated from a genetically manipulated source #7: Sugar | #8: Sugar | ChemComp-MAN / | |
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-Non-polymers , 3 types, 5 molecules ![](data/chem/img/CA.gif)
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![](data/chem/img/HOH.gif)
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![](data/chem/img/HOH.gif)
#5: Chemical | ChemComp-CA / |
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#6: Chemical | ChemComp-THJ / |
#9: Water | ChemComp-HOH / |
-Details
Has ligand of interest | Y |
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-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
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Source (recombinant) |
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Buffer solution | pH: 7 Details: Micro SEC buffer: 150 mM NaCl, 20 mM MES pH 7.0, 1 mM CaCl2 | ||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.02 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: 40 uL of a protein sample with an OD_280 of 0.88 were injected onto a Cytiva Superdex 200 Increase 3.2/300 size-exclusion chromatography column, equilibrated in 150 mM NaCl, 20 mM MES pH 7. ...Details: 40 uL of a protein sample with an OD_280 of 0.88 were injected onto a Cytiva Superdex 200 Increase 3.2/300 size-exclusion chromatography column, equilibrated in 150 mM NaCl, 20 mM MES pH 7.0, 1 mM CaCl2, collecting 50 uL fractions. | ||||||||||||||||||||||||||||
Specimen support | Details: The Quantifoil Au300 R1.2/1.3 Holey Carbon grids were glow discharged using the EMS GloQube. For grids to be coated in GO, the Graphene Oxide setting was used (0.2m Bar, 40 mA for 180 ...Details: The Quantifoil Au300 R1.2/1.3 Holey Carbon grids were glow discharged using the EMS GloQube. For grids to be coated in GO, the Graphene Oxide setting was used (0.2m Bar, 40 mA for 180 seconds). For GO coating, graphene oxide solution (Sigma) at 0.2 mg/ml was spun at 300 g for 30 s to remove large aggregates. 3 uL was added to the grids for 1 minute, before blotting with Whatman No1 filter paper and washing three times with 20 uL drops of ultrapure water. Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K Details: Blotting time 3 s, waiting time 30 s Sample volume 3 uL, blot force 10 |
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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 / Nominal magnification: 105000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: BASIC |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 1 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 1400000 / Algorithm: BACK PROJECTION / Num. of class averages: 4 / Symmetry type: POINT | ||||||||||||||||||||||||
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