1PBO

COMPLEX OF BOVINE ODORANT BINDING PROTEIN (OBP) WITH A SELENIUM CONTAINING ODORANT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The three-dimensional structure of bovine odorant binding protein and its mechanism of odor recognition.

Bianchet, M.A.Bains, G.Pelosi, P.Pevsner, J.Snyder, S.H.Monaco, H.L.Amzel, L.M.

(1996) Nat.Struct.Mol.Biol. 3: 934-939


  • PubMed Abstract: 
  • Odorant binding protein (OBP) is the major odorant binding component of mammalian nasal mucosa. The two structures of bovine OBP reported in this paper (one crystallized as purified and one soaked in the presence of a selenium-containing odorant) sho ...

    Odorant binding protein (OBP) is the major odorant binding component of mammalian nasal mucosa. The two structures of bovine OBP reported in this paper (one crystallized as purified and one soaked in the presence of a selenium-containing odorant) show that: (i) the OBP dimer is composed of two compact domains related by an approximate two-fold axis of symmetry; (ii) between residues 122 and 123 the polypeptide chains cross from one domain to the other such that each domain is formed by residues from both monomers; (iii) purified OBP already contains two bound odorant molecules (one per monomer)-odorant binding occurs by replacement of these molecules with the added odorant; and (iv) the structure of the odorant binding site can explain OBP's extraordinarily broad odorant specificity.


    Organizational Affiliation

    Department of Biophysics and Biophysical Chemistry, University of Pisa, Italy. mario@neruda.med.jhu.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ODORANT BINDING PROTEIN
A, B
159Bos taurusN/A
Find proteins for P07435 (Bos taurus)
Go to UniProtKB:  P07435
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SES
Query on SES

Download SDF File 
Download CCD File 
A, B
4-butyl-5-propyl-1,3-selenazol-2-amine
C10 H18 N2 Se
DOUUMUUUWUAPPC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.190 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 41.870α = 90.00
b = 65.180β = 98.13
c = 55.540γ = 90.00
Software Package:
Software NamePurpose
XENGENdata reduction
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-07-23
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance