8R7Q | pdb_00008r7q

human connexin-36 gap junction channel in complex with quinine

• PDB DOI: https://doi.org/10.2210/pdb8R7Q/pdb
• EM Map EMD-18988: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  PDBTMMemProtMDmpstruc


• Deposited: 2023-11-27 Released: 2024-07-03 
• Deposition Author(s): Ding, X.Y., Blum, T.B., Korkhov, V.M.
• Funding Organization(s): Swiss National Science Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.78 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural basis of connexin-36 gap junction channel inhibition.

Ding, X., Aureli, S., Vaithia, A., Lavriha, P., Schuster, D., Khanppnavar, B., Li, X., Blum, T.B., Picotti, P., Gervasio, F.L., Korkhov, V.M.

(2024) Cell Discov 10: 68-68

• PubMed: 38890333 
• DOI: https://doi.org/10.1038/s41421-024-00691-y
• Primary Citation of Related Structures:  
  8QOJ, 8R7P, 8R7Q, 8R7R

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Organizational Affiliation: 
• Laboratory of Biomolecular Research, Paul Scherrer Institute, Villigen, Switzerland.
School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland.
ISPSO, University of Geneva, Geneva, Switzerland.
Swiss Institute of Bioinformatics, University of Geneve, Geneva, Switzerland.
Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland.
Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland.
School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland. [e-mail].
ISPSO, University of Geneva, Geneva, Switzerland. [e-mail].
Swiss Institute of Bioinformatics, University of Geneve, Geneva, Switzerland. [e-mail].
Department of Chemistry, University College London, London, UK. [e-mail].
Laboratory of Biomolecular Research, Paul Scherrer Institute, Villigen, Switzerland. [e-mail].
Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland. [e-mail].

Biological Assembly 1  

Global Symmetry: Dihedral - D6  (Explore in 3D)
Global Stoichiometry: Homo 12-mer - A12 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 448.84 kDa 
• Atom Count: 17,016 
• Modeled Residue Count: 2,076 
• Deposited Residue Count: 3,960 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Gap junction delta-2 protein	A, B, C, D, E, F, G, H, I, J, K, L	330	Homo sapiens	Mutation(s): 0  Gene Names: GJD2 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UKL4 (Homo sapiens) Explore Q9UKL4  Go to UniProtKB:  Q9UKL4
PHAROS:  Q9UKL4 GTEx:  ENSG00000159248

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
QI9 (Subject of Investigation/LOI)	M [auth A], N [auth B], O [auth C], P [auth D], Q [auth E], R [auth F], S [auth G], T [auth H], U [auth I], V [auth J], W [auth K], X [auth L]	Quinine C20 H24 N2 O2 LOUPRKONTZGTKE-WZBLMQSHSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.78 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1_4487

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-07-03 
Deposition Author(s): Ding, X.Y., Blum, T.B., Korkhov, V.M.

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Funding Organization	Location	Grant Number
Swiss National Science Foundation	Switzerland	--

Revision History  

• Version 1.0: 2024-07-03
  Type: Initial release
  
• Version 1.1: 2024-11-06
  Changes: Data collection, Structure summary