2IHL

LYSOZYME (E.C.3.2.1.17) (JAPANESE QUAIL)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Three-dimensional structure of a heteroclitic antigen-antibody cross-reaction complex.

Chitarra, V.Alzari, P.M.Bentley, G.A.Bhat, T.N.Eisele, J.L.Houdusse, A.Lescar, J.Souchon, H.Poljak, R.J.

(1993) Proc.Natl.Acad.Sci.Usa 90: 7711-7715

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Although antibodies are highly specific, cross-reactions are frequently observed. To understand the molecular basis of this phenomenon, we studied the anti-hen egg lysozyme (HEL) monoclonal antibody (mAb) D11.15, which cross-reacts with several avian ...

    Although antibodies are highly specific, cross-reactions are frequently observed. To understand the molecular basis of this phenomenon, we studied the anti-hen egg lysozyme (HEL) monoclonal antibody (mAb) D11.15, which cross-reacts with several avian lysozymes, in some cases with a higher affinity (heteroclitic binding) than for HEL. We have determined the crystal structure of the Fv fragment of D11.15 complexed with pheasant egg lysozyme (PHL). In addition, we have determined the structure of PHL, Guinea fowl egg lysozyme, and Japanese quail egg lysozyme. Differences in the affinity of D11.15 for the lysozymes appear to result from sequence substitutions in these antigens at the interface with the antibody. More generally, cross-reactivity is seen to require a stereochemically permissive environment for the variant antigen residues at the antibody-antigen interface.


    Organizational Affiliation

    Unité d'Immunologie Structurale (Centre National de la Recherche Scientifique, Unité de Recherches Associée URA 359), Institut Pasteur, Paris, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
JAPANESE QUAIL EGG WHITE LYSOZYME
A
129Coturnix japonicaGene Names: LYZ
EC: 3.2.1.17
Find proteins for P00701 (Coturnix japonica)
Go to Gene View: LYZ
Go to UniProtKB:  P00701
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 103.900α = 90.00
b = 38.700β = 100.60
c = 34.000γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance