1NPO

BOVINE NEUROPHYSIN II COMPLEX WITH OXYTOCIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the neurophysin-oxytocin complex.

Rose, J.P.Wu, C.K.Hsiao, C.D.Breslow, E.Wang, B.C.

(1996) Nat.Struct.Mol.Biol. 3: 163-169


  • PubMed Abstract: 
  • The first crystal structure of the pituitary hormone oxytocin complexed with its carrier protein neurophysin has been determined and refined to 3.0 A resolution. The hormone-binding site is located at the end of a 3(10)-helix and involves residues fr ...

    The first crystal structure of the pituitary hormone oxytocin complexed with its carrier protein neurophysin has been determined and refined to 3.0 A resolution. The hormone-binding site is located at the end of a 3(10)-helix and involves residues from both domains of each monomer. Hormone residues Tyr 2, which is buried deep in the binding pocket, and Cys 1 have been confirmed as the key residues involved in neurophysin-hormone recognition. We have compared the bound oxytocin observed in the neurophysin-oxytocin complex, the X-ray structures of unbound oxytocin analogues and the NMR-derived structure for bound oxytocin. We find that while our structure is in agreement with the previous crystallographic findings, it differs from the NMR result with regard to how Tyr 2 of the hormone is recognized by neurophysin.


    Related Citations: 
    • Crystals of Modified Bovine Neurophysin II
      Rose, J.P.,Yang, D.,Yoo, C.S.,Sax, M.,Breslow, E.,Wang, B.C.
      (1988) Eur.J.Biochem. 174: 145
    • Crystal Structure of a Bovine Neurophysin II Dipeptide Complex at 2.8 A Determined from the Single-Wavelength Anomalous Scattering Signal of an Incorporated Iodine Atom
      Chen, L.Q.,Rose, J.P.,Breslow, E.,Yang, D.,Chang, W.R.,Furey Junior, W.F.,Sax, M.,Wang, B.C.
      (1991) Proc.Natl.Acad.Sci.USA 88: 4240
    • Crystals of a Bovine Neurophysin II-Dipeptide Amide Complex
      Yoo, C.S.,Wang, B.C.,Sax, M.,Breslow, E.
      (1979) J.Mol.Biol. 127: 241


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University of Georgia, Athens 30602, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NEUROPHYSIN II
A
95Bos taurusGene Names: AVP
Find proteins for P01180 (Bos taurus)
Go to Gene View: AVP
Go to UniProtKB:  P01180
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
OXYTOCIN
B, D
9N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
NEUROPHYSIN II
C
95Bos taurusGene Names: AVP
Find proteins for P01180 (Bos taurus)
Go to Gene View: AVP
Go to UniProtKB:  P01180
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.182 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 69.050α = 90.00
b = 69.050β = 90.00
c = 113.260γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
XENGENdata collection
XENGENdata reduction
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-02-12
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance