3O9M

Co-crystallization studies of full length recombinant BChE with cocaine offers insights into cocaine detoxification


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.98 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


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Literature

Cocrystallization studies of full-length recombinant butyrylcholinesterase (BChE) with cocaine.

Asojo, O.A.Ngamelue, M.N.Homma, K.Lockridge, O.

(2011) Acta Crystallogr.,Sect.F 67: 434-437

  • DOI: 10.1107/S1744309111004805

  • PubMed Abstract: 
  • Human butyrylcholinesterase (BChE; EC 3.1.1.8) is a 340 kDa tetrameric glycoprotein that is present in human serum at about 5 mg l(-1) and has well documented therapeutic effects on cocaine toxicity. BChE holds promise as a therapeutic that reduces a ...

    Human butyrylcholinesterase (BChE; EC 3.1.1.8) is a 340 kDa tetrameric glycoprotein that is present in human serum at about 5 mg l(-1) and has well documented therapeutic effects on cocaine toxicity. BChE holds promise as a therapeutic that reduces and finally eliminates the rewarding effects of cocaine, thus weaning an addict from the drug. There have been extensive computational studies of cocaine hydrolysis by BChE. Since there are no reported structures of BChE with cocaine or any of the hydrolysis products, full-length monomeric recombinant wild-type BChE was cocrystallized with cocaine. The refined 3 Å resolution structure appears to retain the hydrolysis product benzoic acid in sufficient proximity to form a hydrogen bond to the active-site Ser198.


    Organizational Affiliation

    Pathology and Microbiology Department, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA. oasojo@unmc.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cholinesterase
A, B
574Homo sapiensMutation(s): 0 
Gene Names: BCHE (CHE1)
EC: 3.1.1.8
Find proteins for P06276 (Homo sapiens)
Go to Gene View: BCHE
Go to UniProtKB:  P06276
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BEZ
Query on BEZ

Download SDF File 
Download CCD File 
A, B
BENZOIC ACID
C7 H6 O2
WPYMKLBDIGXBTP-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.98 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.223 
  • Space Group: P 4 21 2
Unit Cell:
Length (Å)Angle (°)
a = 150.392α = 90.00
b = 150.392β = 90.00
c = 142.448γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
ADSCdata collection
MOSFLMdata reduction
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-04-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance