2IMM

Refined crystal structure of a recombinant immunoglobulin domain and a complementarity-determining region 1-grafted mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.149 

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This is version 1.2 of the entry. See complete history


Literature

Refined crystal structure of a recombinant immunoglobulin domain and a complementarity-determining region 1-grafted mutant.

Steipe, B.Pluckthun, A.Huber, R.

(1992) J Mol Biol 225: 739-753

  • DOI: 10.1016/0022-2836(92)90398-4
  • Primary Citation of Related Structures:  
    2IMM, 2IMN

  • PubMed Abstract: 
  • We report the solution of the crystal structure of a mutant of the immunoglobulin VL domain of the antibody McPC603, in which the complementarity-determining region 1 segment is replaced with that of a different antibody. The wild-type and mutant cry ...

    We report the solution of the crystal structure of a mutant of the immunoglobulin VL domain of the antibody McPC603, in which the complementarity-determining region 1 segment is replaced with that of a different antibody. The wild-type and mutant crystal structures have been refined to a crystallographic R-factor of 14.9% at a nominal resolution of 1.97 A. A detailed description of the structures is given. Crystal packing results in a dimeric association of domains, in a fashion closely resembling that of an Fv fragment. The comparison of this VL domain with the same domain in the Fab fragment of McPC603 shows that the structure of an immunoglobulin VL domain is largely independent of its mode of association, even in places where the inter-subunit contacts are not conserved between VL and VH. In all three complementarity-determining regions we observe conformations that would not have been predicted by the canonical structure hypothesis. Significant differences between the VL domain dimer and the Fab fragment in the third complementarity-determining region show that knowledge of the structure of the dimerization partner and its exact mode of association may be needed to predict the precise conformation of antigen-binding loops.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Studies of the VL Domain of the Antibody Mc/Pc603 Produced in Escherichia Coli
      Glockshuber, R., Steipe, B., Huber, R., Pluckthun, A.
      (1990) J Mol Biol 213: 613

    Organizational Affiliation

    Abteilung Strukturforschung, Max-Planck-Institut für Biochemie, Martinsried, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
IGA-KAPPA MCPC603 FV (LIGHT CHAIN)A114Mus musculusMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ACT
Query on ACT

Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.149 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.5α = 90
b = 86.5β = 90
c = 74.6γ = 120
Software Package:
Software NamePurpose
EREFrefinement

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 1993-03-01 
  • Released Date: 1993-07-15 
  • Deposition Author(s): Steipe, B., Huber, R.

Revision History 

  • Version 1.0: 1993-07-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance