Acetylcholinesterase: Enhanced Fluctuations and Alternative Routes to the Active Site in the Complex with Fasciculin-2

May 21, 2004

Journal Article

Acetylcholinesterase: Enhanced Fluctuations and Alternative
Routes to the Active Site in the Complex with Fasciculin-2

Abstract

A 15 ns molecular dynamics simulation is reported for the complex of mouse acetylcholinesterase (mAChE) and the protein neurotoxin fasciculin-2. As compared to a 15 ns simulation of apo-mAChE, the structural fluctuations of the enzyme are substantially increased in magnitude for the enzyme in the complex. Fluctuations of part of the long omega loop (residues 69-96) are particularly enhanced. This loop forms one wall of the active site, and the enhanced fluctuations lead to additional routes of access to the active site.

Revised: January 23, 2012 | Published: May 21, 2004

Citation

Bui J.M., K. Tai, and J.A. Mccammon. 2004. "Acetylcholinesterase: Enhanced Fluctuations and Alternative Routes to the Active Site in the Complex with Fasciculin-2." Journal of the American Chemical Society 126.