5UJ9

Cryo-EM structure of bovine multidrug resistance protein 1 (MRP1)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.49 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.7 of the entry. See complete history


Literature

Structural Basis of Substrate Recognition by the Multidrug Resistance Protein MRP1.

Johnson, Z.L.Chen, J.

(2017) Cell 168: 1075-1085.e9

  • DOI: 10.1016/j.cell.2017.01.041
  • Primary Citation of Related Structures:  
    5UJ9, 5UJA

  • PubMed Abstract: 
  • The multidrug resistance protein MRP1 is an ATP-binding cassette (ABC) transporter that confers resistance to many anticancer drugs and plays a role in the disposition and efficacy of several opiates, antidepressants, statins, and antibiotics. In addition, MRP1 regulates redox homeostasis, inflammation, and hormone secretion ...

    The multidrug resistance protein MRP1 is an ATP-binding cassette (ABC) transporter that confers resistance to many anticancer drugs and plays a role in the disposition and efficacy of several opiates, antidepressants, statins, and antibiotics. In addition, MRP1 regulates redox homeostasis, inflammation, and hormone secretion. Using electron cryomicroscopy, we determined the molecular structures of bovine MRP1 in two conformations: an apo form at 3.5 Å without any added substrate and a complex form at 3.3 Å with one of its physiological substrates, leukotriene C 4 . These structures show that by forming a single bipartite binding site, MRP1 can recognize a spectrum of substrates with different chemical structures. We also observed large conformational changes induced by leukotriene C 4 , explaining how substrate binding primes the transporter for ATP hydrolysis. Structural comparison of MRP1 and P-glycoprotein advances our understanding of the common and unique properties of these two important molecules in multidrug resistance to chemotherapy.


    Organizational Affiliation

    Laboratory of Membrane Biology and Biophysics, The Rockefeller University and the Howard Hughes Medical Institute, 1230 York Avenue, New York, NY 10065, USA. Electronic address: juechen@rockefeller.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
bovine multidrug resistance protein 1 (MRP1),Multidrug resistance-associated protein 1A1,460Bos taurusMutation(s): 0 
Gene Names: ABCC1MRP1
EC: 7.6.2.2 (UniProt), 7.6.2.3 (UniProt)
Membrane Entity: Yes 
UniProt
Find proteins for Q8HXQ5 (Bos taurus)
Explore Q8HXQ5 
Go to UniProtKB:  Q8HXQ5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8HXQ5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.49 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Howard Hughes Medical Institute (HHMI)United States--
The Rockefeller UniversityUnited States--
Jane Coffin Childs Memorial Fund for Medical ResearchUnited States--

Revision History  (Full details and data files)

  • Version 1.0: 2017-02-22
    Type: Initial release
  • Version 1.1: 2017-03-15
    Changes: Database references
  • Version 1.2: 2017-03-22
    Changes: Database references
  • Version 1.3: 2017-03-29
    Changes: Source and taxonomy
  • Version 1.4: 2017-11-08
    Changes: Data processing, Derived calculations
  • Version 1.5: 2018-10-03
    Changes: Data collection, Other, Refinement description, Structure summary
  • Version 1.6: 2019-11-20
    Changes: Author supporting evidence
  • Version 1.7: 2019-12-18
    Changes: Other