1P28

The crystal structure of a pheromone binding protein from the cockroach Leucophaea maderae in complex with a component of the pheromonal blend: 3-hydroxy-butan-2-one.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.141 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

THE CRYSTAL STRUCTURE OF A COCKROACH PHEROMONE-BINDING PROTEIN SUGGESTS A NEW LIGAND BINDING AND RELEASE MECHANISM

Lartigue, A.Gruez, A.Spinelli, S.Riviere, S.Brossut, R.Tegoni, M.Cambillau, C.

(2003) J.Biol.Chem. 278: 30213-30218

  • DOI: 10.1074/jbc.M304688200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Pheromone-binding proteins (PBPs) are small helical proteins found in sensorial organs, particularly in the antennae, of moth and other insect species. They were proposed to solubilize and carry the hydrophobic pheromonal compounds through the antenn ...

    Pheromone-binding proteins (PBPs) are small helical proteins found in sensorial organs, particularly in the antennae, of moth and other insect species. They were proposed to solubilize and carry the hydrophobic pheromonal compounds through the antennal lymph to receptors, participating thus in the peri-receptor events of signal transduction. The x-ray structure of Bombyx mori PBP (BmorPBP), from male antennae, revealed a six-helix fold forming a cavity that contains the pheromone bombykol. We have identified a PBP (LmaPBP) from the cockroach Leucophaea maderae in the antennae of the females, the gender attracted by pheromones in this species. Here we report the crystal structure of LmaPBP alone or in complex with a fluorescent reporter (amino-naphthalen sulfonate, ANS) or with a component of the pheromonal blend, 3-hydroxy-butan-2-one. Both compounds bind in the internal cavity of LmaPBP, which is more hydrophilic than BmorPBP cavity. LmaPBP structure ends just after the sixth helix (helix F). BmorPBP structure extends beyond the sixth helix with a stretch of residues elongated at neutral pH and folding as a seventh internalized helix at low pH. These differences between LmaPBP and BmorPBP structures suggest that different binding and release mechanism may be adapted to the hydrophilicity or hydrophobicity of the pheromonal ligand.


    Organizational Affiliation

    Architecture et Fonction des Macromolécules Biologiques, UMR 6098 CNRS and Universités Aix-Marseille I & 2, 31 Ch. Joseph Aiguier, 13402 Marseille Cedex 20, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
pheromone binding protein
A, B
129Rhyparobia maderaeMutation(s): 0 
Find proteins for Q8MTC1 (Rhyparobia maderae)
Go to UniProtKB:  Q8MTC1
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HBS
Query on HBS

Download SDF File 
Download CCD File 
A, B
S,3-HYDROXYBUTAN-2-ONE
C4 H8 O2
ROWKJAVDOGWPAT-VKHMYHEASA-N
 Ligand Interaction
HBR
Query on HBR

Download SDF File 
Download CCD File 
A, B
R,3-HYDROXYBUTAN-2-ONE
C4 H8 O2
ROWKJAVDOGWPAT-GSVOUGTGSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
HBRKd: 3800 nM BINDINGMOAD
HBSKd: 3800 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.141 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 38.217α = 90.00
b = 62.210β = 92.47
c = 45.117γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
CCP4data scaling
AMoREphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-08-05
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Version format compliance