1BWO

THE CRYSTAL STRUCTURE OF WHEAT NON-SPECIFIC TRANSFER PROTEIN COMPLEXED WITH TWO MOLECULES OF PHOSPHOLIPID AT 2.1 A RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.163 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structure of a wheat nonspecific lipid transfer protein (ns-LTP1) complexed with two molecules of phospholipid at 2.1 A resolution.

Charvolin, D.Douliez, J.P.Marion, D.Cohen-Addad, C.Pebay-Peyroula, E.

(1999) Eur.J.Biochem. 264: 562-568


  • PubMed Abstract: 
  • Nonspecific lipid transfer proteins (ns-LTP1) form a multigenic protein family in plants. In vitro they are able to bind all sort of lipids but their function, in vivo, remains speculative. A ns-LTP1 isolated from wheat seed was crystallized in the p ...

    Nonspecific lipid transfer proteins (ns-LTP1) form a multigenic protein family in plants. In vitro they are able to bind all sort of lipids but their function, in vivo, remains speculative. A ns-LTP1 isolated from wheat seed was crystallized in the presence of lyso-myristoyl-phosphatidylcholine (LMPC). The structure was solved by molecular replacement and refined to 2.1 A resolution to an R-factor of 16.3% and a free R-factor of 21.3%. It reveals for the first time that the protein binds two LMPC molecules that are inserted head to tail in a hydrophobic cavity. A detailed study of the structure leads to the conclusion that there are two lipid-binding sites, one of which shows a higher affinity for the LMPC than the other. Comparison with other structures of lipid-bound ns-LTP1 suggests that the presence of two binding sites is a general feature of plant ns-LTP1.


    Organizational Affiliation

    Institut de Biologie Structural Jean-Pierre Ebel, CEA-CNRS, Nantes, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NONSPECIFIC LIPID-TRANSFER PROTEIN
A, B
90Triticum aestivumN/A
Find proteins for P24296 (Triticum aestivum)
Go to UniProtKB:  P24296
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LPC
Query on LPC

Download SDF File 
Download CCD File 
A, B
[1-MYRISTOYL-GLYCEROL-3-YL]PHOSPHONYLCHOLINE
C22 H47 N O7 P
VXUOFDJKYGDUJI-OAQYLSRUSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.163 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 41.110α = 90.00
b = 56.890β = 90.00
c = 70.630γ = 90.00
Software Package:
Software NamePurpose
XDSdata scaling
X-PLORrefinement
XDSdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-08-27
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance