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Open data
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Basic information
Entry | Database: PDB / ID: 9c7v | ||||||||||||
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Title | Structure of the human BOS:human EMC complex in GDN | ||||||||||||
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![]() | MEMBRANE PROTEIN / membrane protein biogenesis / membrane protein complex | ||||||||||||
Function / homology | ![]() negative regulation of nodal signaling pathway / multi-pass transmembrane protein insertion into ER membrane / multi-pass translocon complex / extrinsic component of endoplasmic reticulum membrane / inorganic cation transmembrane transporter activity / EMC complex / omegasome membrane / protein insertion into ER membrane by stop-transfer membrane-anchor sequence / magnesium ion transport / determination of left/right asymmetry in lateral mesoderm ...negative regulation of nodal signaling pathway / multi-pass transmembrane protein insertion into ER membrane / multi-pass translocon complex / extrinsic component of endoplasmic reticulum membrane / inorganic cation transmembrane transporter activity / EMC complex / omegasome membrane / protein insertion into ER membrane by stop-transfer membrane-anchor sequence / magnesium ion transport / determination of left/right asymmetry in lateral mesoderm / tail-anchored membrane protein insertion into ER membrane / protein localization to nuclear inner membrane / Miscellaneous transport and binding events / cobalt ion transmembrane transporter activity / ferrous iron transmembrane transporter activity / copper ion transport / regulation of protein complex stability / magnesium ion transmembrane transporter activity / autophagosome assembly / RHOA GTPase cycle / regulation of signal transduction / regulation of protein-containing complex assembly / positive regulation of endothelial cell proliferation / positive regulation of endothelial cell migration / positive regulation of angiogenesis / ribosome binding / carbohydrate binding / early endosome membrane / angiogenesis / nuclear membrane / early endosome / protein stabilization / Golgi membrane / apoptotic process / endoplasmic reticulum membrane / endoplasmic reticulum / Golgi apparatus / protein-containing complex / extracellular region / membrane / plasma membrane / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.6 Å | ||||||||||||
![]() | Nguyen, V.N. / Tomaleri, G.P. / Voorhees, R.M. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Role of a holo-insertase complex in the biogenesis of biophysically diverse ER membrane proteins. Authors: Katharine R Page / Vy N Nguyen / Tino Pleiner / Giovani Pinton Tomaleri / Maxine L Wang / Alina Guna / Masami Hazu / Ting-Yu Wang / Tsui-Fen Chou / Rebecca M Voorhees / ![]() Abstract: Mammalian membrane proteins perform essential physiologic functions that rely on their accurate insertion and folding at the endoplasmic reticulum (ER). Using forward and arrayed genetic screens, we ...Mammalian membrane proteins perform essential physiologic functions that rely on their accurate insertion and folding at the endoplasmic reticulum (ER). Using forward and arrayed genetic screens, we systematically studied the biogenesis of a panel of membrane proteins, including several G-protein-coupled receptors (GPCRs). We observed a central role for the insertase, the ER membrane protein complex (EMC), and developed a dual-guide approach to identify genetic modifiers of the EMC. We found that the back of Sec61 (BOS) complex, a component of the multipass translocon, was a physical and genetic interactor of the EMC. Functional and structural analysis of the EMC⋅BOS holocomplex showed that characteristics of a GPCR's soluble domain determine its biogenesis pathway. In contrast to prevailing models, no single insertase handles all substrates. We instead propose a unifying model for coordination between the EMC, the multipass translocon, and Sec61 for the biogenesis of diverse membrane proteins in human cells. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 692.2 KB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 45295MC ![]() 9c7uC C: citing same article ( M: map data used to model this data |
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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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1 |
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Components
-ER membrane protein complex subunit ... , 8 types, 8 molecules 101234678
#1: Protein | Mass: 27375.797 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#2: Protein | Mass: 111886.141 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#3: Protein | Mass: 34882.531 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#4: Protein | Mass: 29981.924 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#5: Protein | Mass: 20104.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#7: Protein | Mass: 12029.248 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#8: Protein | Mass: 26501.586 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#9: Protein | Mass: 23807.076 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Protein , 4 types, 4 molecules 5ABC
#6: Protein | Mass: 14706.786 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#10: Protein | Mass: 63047.145 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#11: Protein | Mass: 139580.234 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#12: Protein | Mass: 25279.848 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Sugars , 2 types, 4 molecules 
#13: Polysaccharide | Source method: isolated from a genetically manipulated source #14: Sugar | |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-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: Human BOS complex / Type: COMPLEX / Details: Human BOS complex of NOMO, TMEM147, and NCLN / Entity ID: #1-#12 / Source: MULTIPLE SOURCES | ||||||||||||||||||||||||||||||
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||||
Source (natural) | Organism: ![]() | ||||||||||||||||||||||||||||||
Source (recombinant) | Organism: ![]() | ||||||||||||||||||||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 2.53 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: Sample solubilized and purified in GDN. | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 279 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: DARK FIELD / Nominal magnification: 105000 X / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 17978 |
EM imaging optics | Energyfilter name: GIF Quantum LS / Energyfilter slit width: 20 eV |
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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: 6.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 45703 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT | ||||||||||||||||||||||||||||||||
Atomic model building |
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Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 105.92 Å2 | ||||||||||||||||||||||||||||||||
Refine LS restraints |
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