2AJV

Crystal Structure of Cocaine catalytic Antibody 7A1 Fab' in Complex with Cocaine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 

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This is version 1.2 of the entry. See complete history


Literature

Complete reaction cycle of a cocaine catalytic antibody at atomic resolution.

Zhu, X.Dickerson, T.J.Rogers, C.J.Kaufmann, G.F.Mee, J.M.McKenzie, K.M.Janda, K.D.Wilson, I.A.

(2006) Structure 14: 205-216

  • DOI: 10.1016/j.str.2005.10.014
  • Primary Citation of Related Structures:  
    2AJS, 2AJU, 2AJV, 2AJX, 2AJY, 2AJZ, 2AK1

  • PubMed Abstract: 
  • Antibody 7A1 hydrolyzes cocaine to produce nonpsychoactive metabolites ecgonine methyl ester and benzoic acid. Crystal structures of 7A1 Fab' and six complexes with substrate cocaine, the transition state analog, products ecgonine methyl ester and benzoic acid together and individually, as well as heptaethylene glycol have been analyzed at 1 ...

    Antibody 7A1 hydrolyzes cocaine to produce nonpsychoactive metabolites ecgonine methyl ester and benzoic acid. Crystal structures of 7A1 Fab' and six complexes with substrate cocaine, the transition state analog, products ecgonine methyl ester and benzoic acid together and individually, as well as heptaethylene glycol have been analyzed at 1.5-2.3 angstroms resolution. Here, we present snapshots of the complete cycle of the cocaine hydrolytic reaction at atomic resolution. Significant structural rearrangements occur along the reaction pathway, but they are generally limited to the binding site, including the ligands themselves. Several interacting side chains either change their rotamers or alter their mobility to accommodate the different reaction steps. CDR loop movements (up to 2.3 angstroms) and substantial side chain rearrangements (up to 9 angstroms) alter the shape and size (approximately 320-500 angstroms3) of the antibody active site from "open" to "closed" to "open" for the substrate, transition state, and product states, respectively.


    Organizational Affiliation

    Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Antibody 7A1 Fab'A [auth L]216Mus musculusMutation(s): 0 
Gene Names: Igkc
UniProt
Find proteins for P01837 (Mus musculus)
Explore P01837 
Go to UniProtKB:  P01837
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Antibody 7A1 Fab'B [auth H]219Mus musculusMutation(s): 0 
UniProt
Find proteins for A2NUE8 (Mus musculus)
Explore A2NUE8 
Go to UniProtKB:  A2NUE8
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
COC (Subject of Investigation/LOI)
Query on COC

Download Ideal Coordinates CCD File 
C [auth L]COCAINE
C17 H21 N O4
ZPUCINDJVBIVPJ-LJISPDSOSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.254α = 90
b = 117.32β = 90
c = 85.217γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

  • Deposited Date: 2005-08-02 
  • Released Date: 2006-02-14 
  • Deposition Author(s): Zhu, X., Wilson, I.A.

Revision History  (Full details and data files)

  • Version 1.0: 2006-02-14
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance