1R0Z

Phosphorylated Cystic fibrosis transmembrane conductance regulator (CFTR) nucleotide-binding domain one (NBD1) with ATP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.221 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of nucleotide-binding domain 1 of the cystic fibrosis transmembrane conductance regulator.

Lewis, H.A.Buchanan, S.G.Burley, S.K.Conners, K.Dickey, M.Dorwart, M.Fowler, R.Gao, X.Guggino, W.B.Hendrickson, W.A.Hunt, J.F.Kearins, M.C.Lorimer, D.Maloney, P.C.Post, K.W.Rajashankar, K.R.Rutter, M.E.Sauder, J.M.Shriver, S.Thibodeau, P.H.Thomas, P.J.Zhang, M.Zhao, X.Emtage, S.

(2004) Embo J. 23: 282-293

  • DOI: 10.1038/sj.emboj.7600040
  • Primary Citation of Related Structures:  1Q3H, 1R0W, 1R0X, 1R0Y, 1R10

  • PubMed Abstract: 
  • Cystic fibrosis transmembrane conductance regulator (CFTR) is an ATP-binding cassette (ABC) transporter that functions as a chloride channel. Nucleotide-binding domain 1 (NBD1), one of two ABC domains in CFTR, also contains sites for the predominant ...

    Cystic fibrosis transmembrane conductance regulator (CFTR) is an ATP-binding cassette (ABC) transporter that functions as a chloride channel. Nucleotide-binding domain 1 (NBD1), one of two ABC domains in CFTR, also contains sites for the predominant CF-causing mutation and, potentially, for regulatory phosphorylation. We have determined crystal structures for mouse NBD1 in unliganded, ADP- and ATP-bound states, with and without phosphorylation. This NBD1 differs from typical ABC domains in having added regulatory segments, a foreshortened subdomain interconnection, and an unusual nucleotide conformation. Moreover, isolated NBD1 has undetectable ATPase activity and its structure is essentially the same independent of ligand state. Phe508, which is commonly deleted in CF, is exposed at a putative NBD1-transmembrane interface. Our results are consistent with a CFTR mechanism, whereby channel gating occurs through ATP binding in an NBD1-NBD2 nucleotide sandwich that forms upon displacement of NBD1 regulatory segments.


    Organizational Affiliation

    Structural GenomiX Inc., San Diego, CA, USA. hal_lewis@stromix.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cystic fibrosis transmembrane conductance regulator
A, B, C, D
286Mus musculusGene Names: Cftr (Abcc7)
EC: 3.6.3.49
Find proteins for P26361 (Mus musculus)
Go to UniProtKB:  P26361
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

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

Download SDF File 
Download CCD File 
A, B, C, D
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
ACY
Query on ACY

Download SDF File 
Download CCD File 
A, B, C, D
ACETIC ACID
C2 H4 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
A, B, C, D
L-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.221 
  • Space Group: P 4 21 2
Unit Cell:
Length (Å)Angle (°)
a = 171.330α = 90.00
b = 171.330β = 90.00
c = 109.870γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
EPMRphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-12-09
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance