9BEI

Cryo-EM structure of synthetic claudin-4 complex with Clostridium perfringens enterotoxin C-terminal domain, sFab COP-2, and Nanobody


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Models: experimental, in silico
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Computational design of soluble and functional membrane protein analogues.

Goverde, C.A.Pacesa, M.Goldbach, N.Dornfeld, L.J.Balbi, P.E.M.Georgeon, S.Rosset, S.Kapoor, S.Choudhury, J.Dauparas, J.Schellhaas, C.Kozlov, S.Baker, D.Ovchinnikov, S.Vecchio, A.J.Correia, B.E.

(2024) Nature 

  • DOI: https://doi.org/10.1038/s41586-024-07601-y
  • Primary Citation of Related Structures:  
    9BEI

  • PubMed Abstract: 

    De novo design of complex protein folds using solely computational means remains a substantial challenge 1 . Here we use a robust deep learning pipeline to design complex folds and soluble analogues of integral membrane proteins. Unique membrane topologies, such as those from G-protein-coupled receptors 2 , are not found in the soluble proteome, and we demonstrate that their structural features can be recapitulated in solution. Biophysical analyses demonstrate the high thermal stability of the designs, and experimental structures show remarkable design accuracy. The soluble analogues were functionalized with native structural motifs, as a proof of concept for bringing membrane protein functions to the soluble proteome, potentially enabling new approaches in drug discovery. In summary, we have designed complex protein topologies and enriched them with functionalities from membrane proteins, with high experimental success rates, leading to a de facto expansion of the functional soluble fold space.


  • Organizational Affiliation

    Laboratory of Protein Design and Immunoengineering, École Polytechnique Fédérale de Lausanne and Swiss Institute of Bioinformatics, Lausanne, Switzerland.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Claudin-4196Homo sapiensMutation(s): 0 
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Heat-labile enterotoxin B chain129Clostridium perfringensMutation(s): 0 
Gene Names: cpe
UniProt
Find proteins for P01558 (Clostridium perfringens)
Explore P01558 
Go to UniProtKB:  P01558
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UniProt GroupP01558
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
COP-2 Fab Heavy chainC [auth H]237Escherichia coliMutation(s): 0 
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Anti-fab nanobodyD [auth K]121Escherichia coliMutation(s): 0 
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
COP-2 Fab Light chainE [auth L]216Escherichia coliMutation(s): 0 
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.20.1-4487
RECONSTRUCTIONcryoSPARC4.4.1

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR35GM138368

Revision History  (Full details and data files)

  • Version 1.0: 2024-04-24
    Type: Initial release
  • Version 1.1: 2024-06-26
    Changes: Data collection, Database references
  • Version 1.2: 2024-07-03
    Changes: Data collection, Database references