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- PDB-9cmh: Cryo-EM structure of human claudin-4 complex with Clostridium per... -
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Open data
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Basic information
Entry | Database: PDB / ID: 9cmh | ||||||
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Title | Cryo-EM structure of human claudin-4 complex with Clostridium perfringens enterotoxin | ||||||
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![]() | MEMBRANE PROTEIN / claudin / enterotoxin | ||||||
Function / homology | ![]() positive regulation of metallopeptidase activity / calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules / Tight junction interactions / bicellular tight junction assembly / apicolateral plasma membrane / tight junction / regulation of cell morphogenesis / positive regulation of wound healing / renal absorption / chloride channel activity ...positive regulation of metallopeptidase activity / calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules / Tight junction interactions / bicellular tight junction assembly / apicolateral plasma membrane / tight junction / regulation of cell morphogenesis / positive regulation of wound healing / renal absorption / chloride channel activity / chloride channel complex / lateral plasma membrane / bicellular tight junction / establishment of skin barrier / basal plasma membrane / response to progesterone / female pregnancy / circadian rhythm / transmembrane signaling receptor activity / cell-cell junction / toxin activity / cell adhesion / positive regulation of cell migration / apical plasma membrane / structural molecule activity / extracellular region / identical protein binding / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4 Å | ||||||
![]() | Vecchio, A.J. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM Structures of Clostridium perfringens Enterotoxin Bound to its Human Receptor, Claudin-4 Authors: Vecchio, A.J. / Kossiakoff, A.A. / Erramilli, S.K. / Rathnayake, S.S. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 92.2 KB | Display | ![]() |
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PDB format | ![]() | 67.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 31 KB | Display | |
Data in CIF | ![]() | 44 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 45748MC 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: 22234.332 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 33000.582 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-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 claudin-4 complex with Clostridium perfringens enterotoxin Type: COMPLEX / Details: 2-protein complex / Entity ID: all / Source: RECOMBINANT | ||||||||||||||||||||
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Molecular weight | Value: 0.055 MDa / Experimental value: NO | ||||||||||||||||||||
Source (natural) | Organism: other entries (others) | ||||||||||||||||||||
Source (recombinant) | Organism: ![]() | ||||||||||||||||||||
Buffer solution | pH: 7.4 / Details: 20 mM Hepes pH 7.4, 100 mM NaCl, and 0.003% LMNG | ||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 8 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||
Specimen support | Details: glow-discharged for 60 seconds at 15 mA using a Pelco easiGlow (Ted Pella Inc) instrument. Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R1.2/1.3 | ||||||||||||||||||||
Vitrification | Instrument: LEICA EM GP / 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 / Nominal magnification: 129000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm / Alignment procedure: BASIC |
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 BIOCONTINUUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 7100 |
EM imaging optics | Energyfilter name: GIF Bioquantum |
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Processing
EM software |
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CTF correction | Type: NONE | ||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 2504188 | ||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 44683 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||||||
Atomic model building |
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Refine LS restraints |
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