Cryo-EM structure of bovine multidrug resistance protein 1 (MRP1) bound to leukotriene C4

Experimental Data Snapshot

  • Resolution: 3.34 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report

This is version 1.10 of the entry. See complete history


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

Johnson, Z.L.Chen, J.

(2017) Cell 168: 1075-1085.e9

  • DOI: https://doi.org/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. 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.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
bovine multidrug resistance protein 1 (MRP1),Multidrug resistance-associated protein 11,460Bos taurusMutation(s): 0 
Gene Names: ABCC1MRP1
Membrane Entity: Yes 
Find proteins for Q8HXQ5 (Bos taurus)
Explore Q8HXQ5 
Go to UniProtKB:  Q8HXQ5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8HXQ5
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on LTX

Download Ideal Coordinates CCD File 
B [auth A](5~{S},6~{R},7~{E},9~{E},11~{Z},14~{Z})-6-[(2~{R})-2-[[(4~{S})-4-azanyl-5-oxidanyl-5-oxidanylidene-pentanoyl]amino]-3-( 2-hydroxy-2-oxoethylamino)-3-oxidanylidene-propyl]sulfanyl-5-oxidanyl-icosa-7,9,11,14-tetraenoic acid
C30 H47 N3 O9 S
Experimental Data & Validation

Experimental Data

  • Resolution: 3.34 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Howard Hughes Medical Institute (HHMI)United States--
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: 2017-03-01
    Changes: Other
  • Version 1.2: 2017-03-08
    Changes: Database references
  • Version 1.3: 2017-03-15
    Changes: Database references
  • Version 1.4: 2017-03-22
    Changes: Database references
  • Version 1.5: 2017-05-24
    Changes: Non-polymer description
  • Version 1.6: 2017-11-08
    Changes: Data processing, Derived calculations
  • Version 1.7: 2018-10-03
    Changes: Data collection, Other, Refinement description, Structure summary
  • Version 1.8: 2019-11-20
    Changes: Author supporting evidence
  • Version 1.9: 2019-12-18
    Changes: Other
  • Version 1.10: 2020-07-15
    Changes: Derived calculations, Structure summary