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- EMDB-45748: Cryo-EM structure of human claudin-4 complex with Clostridium per... -
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Open data
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Basic information
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Title | Cryo-EM structure of human claudin-4 complex with Clostridium perfringens enterotoxin | |||||||||
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![]() | claudin / enterotoxin / MEMBRANE PROTEIN | |||||||||
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 / regulation of cell morphogenesis / tight junction / positive regulation of wound healing / chloride channel activity / renal absorption ...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 / regulation of cell morphogenesis / tight junction / positive regulation of wound healing / chloride channel activity / renal absorption / 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 | other entries (others) / ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.0 Å | |||||||||
![]() | Vecchio AJ | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM Structures of Clostridium perfringens Enterotoxin Bound to its Human Receptor, Claudin-4 Authors: Vecchio AJ / Kossiakoff AA / Erramilli SK / Rathnayake SS | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 30.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 19.2 KB 19.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 8.3 KB | Display | ![]() |
Images | ![]() | 66.1 KB | ||
Filedesc metadata | ![]() | 6.3 KB | ||
Others | ![]() ![]() | 56.7 MB 56.7 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9cmhMC ![]() 9cmiC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 1.294 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_45748_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_45748_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Human claudin-4 complex with Clostridium perfringens enterotoxin
Entire | Name: Human claudin-4 complex with Clostridium perfringens enterotoxin |
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Components |
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-Supramolecule #1: Human claudin-4 complex with Clostridium perfringens enterotoxin
Supramolecule | Name: Human claudin-4 complex with Clostridium perfringens enterotoxin type: complex / ID: 1 / Parent: 0 / Macromolecule list: all / Details: 2-protein complex |
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Source (natural) | Organism: other entries (others) |
Molecular weight | Theoretical: 55 KDa |
-Macromolecule #1: Claudin-4
Macromolecule | Name: Claudin-4 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 22.234332 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: GSMASMGLQV MGIALAVLGW LAVMLCCALP MWRVTAFIGS NIVTSQTIWE GLWMNCVVQS TGQMQCKVYD SLLALPQDLQ AARALVIIS IIVAALGVLL SVVGGKCTNC LEDESAKAKT MIVAGVVFLL AGLMVIVPVS WTAHNIIQDF YNPLVASGQK R EMGASLYV ...String: GSMASMGLQV MGIALAVLGW LAVMLCCALP MWRVTAFIGS NIVTSQTIWE GLWMNCVVQS TGQMQCKVYD SLLALPQDLQ AARALVIIS IIVAALGVLL SVVGGKCTNC LEDESAKAKT MIVAGVVFLL AGLMVIVPVS WTAHNIIQDF YNPLVASGQK R EMGASLYV GWAASGLLLL GGGLLCCNCP PRTDKPYSAK YSAARSAAAS NYV UniProtKB: Claudin-4 |
-Macromolecule #2: Heat-labile enterotoxin B chain
Macromolecule | Name: Heat-labile enterotoxin B chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 33.000582 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: TPINITNSNS NLSDGLYVID KGDGWILGEP SVVSSQILNP NETGTFSQSL TKSKEVSINV NFSVGFTSEF IQASVEYGFG ITIGEQNTI ERSVSTTAGP NEYVYYKVYA TYRKYQAIRI SHGNISDDGS IYKLTGIWLS KTSADSLGNI DQGSLIETGE R CVLTVPST ...String: TPINITNSNS NLSDGLYVID KGDGWILGEP SVVSSQILNP NETGTFSQSL TKSKEVSINV NFSVGFTSEF IQASVEYGFG ITIGEQNTI ERSVSTTAGP NEYVYYKVYA TYRKYQAIRI SHGNISDDGS IYKLTGIWLS KTSADSLGNI DQGSLIETGE R CVLTVPST DIEKEILDLA AATERLNLTD ALNSNPAGNL YDWRSSNSYP WTQKLNLHLT ITATGQKYRI LASKIVDFNI YS NNFNNLV KLEQSLGDGV KDHYVDISLD AGQYVLVMKA NSSYSGNYPY SILFQKFGLV PR UniProtKB: Heat-labile enterotoxin B chain |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 8.0 mg/mL | ||||||||||||
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Buffer | pH: 7.4 Component:
Details: 20 mM Hepes pH 7.4, 100 mM NaCl, and 0.003% LMNG | ||||||||||||
Grid | Model: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. Details: glow-discharged for 60 seconds at 15 mA using a Pelco easiGlow (Ted Pella Inc) instrument. | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: LEICA EM GP |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Bioquantum |
Software | Name: SerialEM |
Image recording | Film or detector model: GATAN K3 BIOCONTINUUM (6k x 4k) / Number grids imaged: 1 / Number real images: 7100 / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 129000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Initial model |
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Software | Name: ![]() | ||||||
Refinement | Space: REAL / Protocol: FLEXIBLE FIT | ||||||
Output model | ![]() PDB-9cmh: |