1OVA

CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of uncleaved ovalbumin at 1.95 A resolution.

Stein, P.E.Leslie, A.G.Finch, J.T.Carrell, R.W.

(1991) J.Mol.Biol. 221: 941-959


  • PubMed Abstract: 
  • Ovalbumin, the major protein in avian egg-white, is a non-inhibitory member of the serine protease inhibitor (serpin) superfamily. The crystal structure of uncleaved, hen ovalbumin was solved by the molecular replacement method using the structure of ...

    Ovalbumin, the major protein in avian egg-white, is a non-inhibitory member of the serine protease inhibitor (serpin) superfamily. The crystal structure of uncleaved, hen ovalbumin was solved by the molecular replacement method using the structure of plakalbumin, a proteolytically cleaved form of ovalbumin, as a starting model. The final refined model, including four ovalbumin molecules, 678 water molecules and a single metal ion, has a crystallographic R-factor of 17.4% for all reflections between 6.0 and 1.95 A resolution. The root-mean-square deviation from ideal values in bond lengths is 0.02 A and in bond angles is 2.9 degrees. This is the first crystal structure of a member of the serpin family in an uncleaved form. Surprisingly, the peptide that is homologous to the reactive centre of inhibitory serpins adopts an alpha-helical conformation. The implications for the mechanism of inhibition of the inhibitory members of the family is discussed.


    Related Citations: 
    • Crystal Structure of Ovalbumin as a Model for the Reactive Centre of Serpins
      Stein, P.E.,Leslie, A.G.W.,Finch, J.T.,Turnell, W.G.,Mclaughlin, P.J.,Carrell, R.W.
      (1990) Nature 347: 99


    Organizational Affiliation

    Department of Haematology, University of Cambridge, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
OVALBUMIN
A
386Gallus gallusMutation(s): 0 
Gene Names: SERPINB14
Find proteins for P01012 (Gallus gallus)
Go to UniProtKB:  P01012
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
OVALBUMIN
B
386Gallus gallusMutation(s): 0 
Gene Names: SERPINB14
Find proteins for P01012 (Gallus gallus)
Go to UniProtKB:  P01012
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
OVALBUMIN
C, D
386Gallus gallusMutation(s): 0 
Gene Names: SERPINB14
Find proteins for P01012 (Gallus gallus)
Go to UniProtKB:  P01012
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
A, B
L-PEPTIDE LINKINGC3 H8 N O6 PSER
ACE
Query on ACE
A, B, C, D
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 62.900α = 87.50
b = 84.700β = 104.00
c = 71.500γ = 108.50
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1992-04-15
    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