7D7R

Cryo-EM structure of the core domain of human ABCB6 transporter


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Cryo-electron microscopy structure of human ABCB6 transporter.

Wang, C.Cao, C.Wang, N.Wang, X.Wang, X.Zhang, X.C.

(2020) Protein Sci 29: 2363-2374

  • DOI: 10.1002/pro.3960
  • Primary Citation of Related Structures:  
    7D7R, 7D7N

  • PubMed Abstract: 
  • Human ATP-binding cassette transporter 6 of subfamily B (ABCB6) is an ABC transporter involved in the translocation toxic metals and anti-cancer drugs. Using cryo-electron microscopy, we determined the molecular structure of full-length ABCB6 in an apo state ...

    Human ATP-binding cassette transporter 6 of subfamily B (ABCB6) is an ABC transporter involved in the translocation toxic metals and anti-cancer drugs. Using cryo-electron microscopy, we determined the molecular structure of full-length ABCB6 in an apo state. The structure of ABCB6 unravels the architecture of a full-length ABCB transporter that harbors two N-terminal transmembrane domains which is indispensable for its ATPase activity in our in vitro assay. A slit-like substrate binding pocket of ABCB6 may accommodate the planar shape of porphyrins, and the existence of a secondary cavity near the mitochondrial intermembrane space side would further facilitate substrate release. Furthermore, the ATPase activity of ABCB6 stimulated with a variety of porphyrin substrates showed different profiles in the presence of glutathione (GSH), suggesting the action of a distinct substrate translocation mechanism depending on the use of GSH as a cofactor.


    Organizational Affiliation

    College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-binding cassette sub-family B member 6, mitochondrialA, B842Homo sapiensMutation(s): 0 
Gene Names: ABCB6MTABC3PRPUMAT
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NP58 (Homo sapiens)
Explore Q9NP58 
Go to UniProtKB:  Q9NP58
PHAROS:  Q9NP58
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Chinese Academy of SciencesChinaXDB37030301
Chinese Academy of SciencesChinaXDB08020301
National Natural Science Foundation of China (NSFC)China31971134

Revision History  (Full details and data files)

  • Version 1.0: 2020-10-21
    Type: Initial release
  • Version 1.1: 2020-10-28
    Changes: Database references
  • Version 1.2: 2020-12-02
    Changes: Database references