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

被引：6
|
作者：
Asojo, Oluwatoyin Ajibola [1 ]
Asojo, Oluyomi Adebola [1 ]
Ngamelue, Michelle N. [1 ]
Homma, Kohei [1 ]
Lockridge, Oksana [2 ]
机构：
[1] Univ Nebraska Med Ctr, Dept Pathol & Microbiol, Omaha, NE 68198 USA
[2] Univ Nebraska Med Ctr, Eppley Canc Inst, Omaha, NE 68198 USA
来源：
ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY COMMUNICATIONS | 2011年 / 67卷
关键词：
BChE; recombinant butyrylcholinesterase; cocaine hydrolysis; MACROMOLECULAR STRUCTURES; MYOCARDIAL-INFARCTION; CRYSTAL-STRUCTURE; HALF-LIFE; ACETYLCHOLINESTERASE; HYDROLASE; CHOLINESTERASES; INTEGRATION; REFINEMENT; METABOLISM;
D O I：
10.1107/S1744309111004805
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
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 A resolution structure appears to retain the hydrolysis product benzoic acid in sufficient proximity to form a hydrogen bond to the active-site Ser198.
引用
收藏
页码：434 / 437
页数：4
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