1HKL

FREE AND LIGANDED FORM OF AN ESTEROLYTIC CATALYTIC ANTIBODY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.68 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structures of the free and liganded form of an esterolytic catalytic antibody.

Wedemayer, G.J.Wang, L.H.Patten, P.A.Schultz, P.G.Stevens, R.C.

(1997) J.Mol.Biol. 268: 390-400

  • DOI: 10.1006/jmbi.1997.0974

  • PubMed Abstract: 
  • The crystal structure of the esterase catalytic antibody 48G7 has been determined in the presence of hapten at 2.0 A resolution and in the absence of hapten at 2.7 A resolution. The root-mean-square difference between the two structures is 0.6 A for ...

    The crystal structure of the esterase catalytic antibody 48G7 has been determined in the presence of hapten at 2.0 A resolution and in the absence of hapten at 2.7 A resolution. The root-mean-square difference between the two structures is 0.6 A for the variable domain and 0.7 A for the constant domain. Comparison of the active site shows that no significant changes occur upon hapten binding as main-chain and side-chain displacements are negligible. Complex formation occurs as hapten fits into a pre-formed pocket about 10 A deep. Although 151 water molecules were modeled into the 48G7-hapten structure, none are bound in the active site. Comparison of the 48G7 structures with those of other published ester hydrolysis antibodies illustrates an emerging theme used by esterolytic antibodies in binding their (nitro-)phenyl haptens and in hydrolysing their cognate esters and carbonates: hapten is bound with the aryl end buried deep in the binding pocket, and the phosphonate moiety is responsible for the majority of the binding energy to the antibody-hapten interaction.


    Related Citations: 
    • The Immunological Evolution of Catalysis
      Patten, P.A.,Gray, N.S.,Yang, P.L.,Marks, C.B.,Wedemayer, G.J.,Boniface, J.J.,Stevens, R.C.,Schultz, P.G.
      (1996) Science 271: 1086
    • A Genetic Approach to the Generation of Antibodies with Enhanced Catalytic Activities
      Lesley, S.A.,Patten, P.A.,Schultz, P.G.
      (1993) Proc.Natl.Acad.Sci.USA 90: 1160


    Organizational Affiliation

    Howard Hughes Medical Institute, Department of Chemistry, University of California, Berkeley 94720, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
48G7 FAB
L
214Homo sapiensGene Names: IGKC
Find proteins for P01834 (Homo sapiens)
Go to UniProtKB:  P01834
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
48G7 FAB
H
217Homo sapiensGene Names: IGHG1
Find proteins for P01857 (Homo sapiens)
Go to UniProtKB:  P01857
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.68 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.184 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 138.690α = 90.00
b = 44.490β = 121.75
c = 84.950γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
DENZOdata reduction
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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