ISDA

Deposition Date 2010-08-04

Release Date 2011-04-13

Last Version Date 2024-11-06

Entry Detail

PDB ID:

3O9M

Keywords:

HYDROLASE

Title:

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

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Cricetulus griseus

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.98 Å

R-Value Free:

0.26

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 4 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cholinesterase
Gene (Uniprot):BCHE
Chain IDs:A, B
Chain Length:574
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P06276 Pfam ID:PF00135, PF08674 EC:3.1.1.8

Ligand Molecules

BEZ

Primary Citation

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

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

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

PMID: 21505234 DOI: 10.1107/S1744309111004805

Abstact

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.

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Primary Citation of related structures