1A3Y

ODORANT BINDING PROTEIN FROM NASAL MUCOSA OF PIG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The structure of the monomeric porcine odorant binding protein sheds light on the domain swapping mechanism.

Spinelli, S.Ramoni, R.Grolli, S.Bonicel, J.Cambillau, C.Tegoni, M.

(1998) Biochemistry 37: 7913-7918

  • DOI: 10.1021/bi980179e
  • Primary Citation of Related Structures:  
    1A3Y

  • PubMed Abstract: 
  • The X-ray structure of the porcine odorant binding protein (OBPp) was determined at 2.25 A resolution. This lipocalin is a monomer and is devoid of naturally occurring bound ligand, contrary to what was observed in the case of bovine OBP [Tegoni, M., et al ...

    The X-ray structure of the porcine odorant binding protein (OBPp) was determined at 2.25 A resolution. This lipocalin is a monomer and is devoid of naturally occurring bound ligand, contrary to what was observed in the case of bovine OBP [Tegoni, M., et al. (1996) Nat. Struct. Biol. 3, 863-867; Bianchet, M. A., et al. (1996) Nat. Struct. Biol. 3, 934-939]. In this latter protein, a dimer without any disulfide bridges, domain swapping was found to occur between the beta- and alpha-domains. A single Gly (121) insertion was found in OBPp when it was compared to OBPb, which may prevent domain swapping from taking place. The presence of a disulfide bridge between the OBPp beta- and alpha-domains (cysteines 63 and 155) may lock the resulting fold in a nonswapped monomeric conformation. Comparisons with other OBPs indicate that the two cysteines involved in the OBPp disulfide bridge are conserved in the sequence, suggesting that OBPp may be considered a prototypic OBP fold, and not OBPb.


    Related Citations: 
    • Affinities of Nutty and Green-Smelling Pyrazines and Thiazoles to Odorant-Binding Proteins, in Relation with Their Lipophilicity
      Herent, M.F., Collin, S., Pelosi, P.
      (1995) Chem Senses 20: 601
    • Binding of Selected Odorant to Bovine and Porcine Odorant-Binding Proteins
      Monte, M.D., Centini, M., Anselmi, C., Pelosi, P.
      (1993) Chem Senses 18: 713
    • Purification and Characterization of Two Odorant-Binding Proteins from Nasal Tissue of Rabbit and Pig
      Dal Monte, M., Andreini, I., Revoltella, R., Pelosi, P.
      (1991) Comp Biochem Physiol B 99: 445

    Organizational Affiliation

    Architecture et Fonction des Macromolécules Biologiques, UPR 9039, CNRS, IFR1, Marseille, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ODORANT BINDING PROTEINA, B149Sus scrofaMutation(s): 0 
UniProt
Find proteins for P81245 (Sus scrofa)
Explore P81245 
Go to UniProtKB:  P81245
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.181 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.36α = 90
b = 88.73β = 90
c = 93.19γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-02-16
    Type: Initial release
  • Version 1.1: 2008-03-25
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance