2CBZ

Structure of the human Multidrug Resistance Protein 1 Nucleotide Binding Domain 1

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.187 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.161 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Structure of the Human Multidrug Resistance Protein 1 Nucleotide Binding Domain 1 Bound to Mg(2+)/ATP Reveals a Non-Productive Catalytic Site.

Ramaen, O., Leulliot, N., Sizun, C., Ulryck, N., Pamlard, O., Lallemand, J.-Y., Van Tilbeurgh, H., Jacquet, E.

(2006) J Mol Biol 359: 940

  • DOI: 10.1016/j.jmb.2006.04.005
  • Primary Citation of Related Structures:  
    2CBZ

  • PubMed Abstract: 

    • Human multidrug resistance protein 1 (MRP1) is a membrane protein that belongs to the ATP-binding cassette (ABC) superfamily of transport proteins. MRP1 contributes to chemotherapy failure by exporting a wide range of anti-cancer drugs when over expressed in the plasma membrane of cells ...

    Human multidrug resistance protein 1 (MRP1) is a membrane protein that belongs to the ATP-binding cassette (ABC) superfamily of transport proteins. MRP1 contributes to chemotherapy failure by exporting a wide range of anti-cancer drugs when over expressed in the plasma membrane of cells. Here, we report the first high-resolution crystal structure of human MRP1-NBD1. Drug efflux requires energy resulting from hydrolysis of ATP by nucleotide binding domains (NBDs). Contrary to the prokaryotic NBDs, the extremely low intrinsic ATPase activity of isolated MRP1-NBDs allowed us to obtain the structure of wild-type NBD1 in complex with Mg2+/ATP. The structure shows that MRP1-NBD1 adopts a canonical fold, but reveals an unexpected non-productive conformation of the catalytic site, providing an explanation for the low intrinsic ATPase activity of NBD1 and new hypotheses on the cooperativity of ATPase activity between NBD1 and NBD2 upon heterodimer formation.

    Organizational Affiliation: 

    Institut de Chimie des Substances Naturelles, UPR 2301, Centre National de la Recherche Scientifique, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MULTIDRUG RESISTANCE-ASSOCIATED PROTEIN 1 A237Homo sapiensMutation(s): 0 
Gene Names: ABCC1, MRP, MRP1
EC: 7.6.2.2 (UniProt), 7.6.2.3 (UniProt)
Find proteins for P33527 (Homo sapiens)
Explore P33527 
Go to UniProtKB:  P33527
NIH Common Fund Data Resources
PHAROS:  P33527
GTEx:  ENSG00000103222
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP
Download Ideal Coordinates CCD File 
A
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N		 Ligand Interaction
MG
Query on MG
Download Ideal Coordinates CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ATPKd:  118000   nM  Binding MOAD
ATPKd :  118000   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.187 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.161 
  • Space Group: P 31
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.56α = 90
b = 65.56β = 90
c = 64.612γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-05-17
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance