2CBZ

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.187 
  • R-Value Work: 0.160 

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

  • 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 expr ...

    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

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MULTIDRUG RESISTANCE-ASSOCIATED PROTEIN 1
A
237Homo sapiensMutation(s): 0 
Gene Names: ABCC1 (MRP, MRP1)
EC: 7.6.2.2
Find proteins for P33527 (Homo sapiens)
Go to Gene View: ABCC1
Go to UniProtKB:  P33527
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ATPKd: 118000 nM BINDINGMOAD
ATPKd: 118000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.187 
  • R-Value Work: 0.160 
  • Space Group: P 31
Unit Cell:
Length (Å)Angle (°)
a = 65.560α = 90.00
b = 65.560β = 90.00
c = 64.612γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
MOLREPphasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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