2IFF

STRUCTURE OF AN ANTIBODY-LYSOZYME COMPLEX: EFFECT OF A CONSERVATIVE MUTATION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of an antibody-lysozyme complex unexpected effect of conservative mutation.

Chacko, S.Silverton, E.Kam-Morgan, L.Smith-Gill, S.Cohen, G.Davies, D.

(1995) J.Mol.Biol. 245: 261-274

  • Also Cited By: 1BQL

  • PubMed Abstract: 
  • The structure of the complex between the Fab HyHEL-5 and chicken lysozyme revealed a large interface region containing 23 lysozyme and 28 Fab residues. Arg68 of the lysozyme is centrally placed in this interface and theoretical studies together with ...

    The structure of the complex between the Fab HyHEL-5 and chicken lysozyme revealed a large interface region containing 23 lysozyme and 28 Fab residues. Arg68 of the lysozyme is centrally placed in this interface and theoretical studies together with binding assays of this Fab to different avian lysozymes have previously shown that this arginine residue is an important contributor to the binding. The Arg68-->Lys mutant binds 10(3) times less well to the HyHEL-5 Fab. We have examined the refined crystal structure of the complex of this mutant lysozyme with the Fab. No global changes occur, but there is an introduction of a new water molecule into the interface that mediates the hydrogen bonding interactions between the lysine and residues on the Fab. These data are compared with the effects of similar changes on the inhibition of serine proteases such as trypsin where the energetic effects of this substitution are small.


    Related Citations: 
    • Three-Dimensional Structure of an Antibody-Antigen Complex
      Sheriff, S.,Silverton, E.W.,Padlan, E.A.,Cohen, G.H.,Smith-Gill, S.J.,Finzel, B.C.,Davies, D.R.
      (1987) Proc.Natl.Acad.Sci.USA 84: 8075


    Organizational Affiliation

    NIDDK, National Institutes of Health, Bethesda, MD.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
IGG1 HYHEL-5 FAB (LIGHT CHAIN)
L
212N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
IGG1 HYHEL-5 FAB (HEAVY CHAIN)
H
215N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
HEN EGG WHITE LYSOZYME
Y
129Gallus gallusGene Names: LYZ
EC: 3.2.1.17
Find proteins for P00698 (Gallus gallus)
Go to Gene View: LYZ
Go to UniProtKB:  P00698
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PGA
Query on PGA
H
NON-POLYMERC2 H5 O6 P

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 54.800α = 90.00
b = 74.800β = 101.80
c = 79.000γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-05-31
    Type: Initial release
  • Version 1.1: 2008-03-10
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-08-10
    Type: Structure summary