2c58

From Proteopedia

Revision as of 11:32, 30 October 2007

TORPEDO CALIFORNICA ACETYLCHOLINESTERASE IN COMPLEX WITH 20MM ACETYLTHIOCHOLINE

Overview

Acetylcholinesterase (AChE) terminates nerve-impulse transmission at, cholinergic synapses by rapid hydrolysis of the neurotransmitter, acetylcholine. Substrate traffic in AChE involves at least two binding, sites, the catalytic and peripheral anionic sites, which have been, suggested to be allosterically related and involved in substrate, inhibition. Here, we present the crystal structures of Torpedo californica, AChE complexed with the substrate acetylthiocholine, the product, thiocholine and a nonhydrolysable substrate analogue. These structures, provide a series of static snapshots of the substrate en route to the, active site and identify, for the first time, binding of substrate and, product at both the peripheral and active sites. Furthermore, they provide, structural insight into ... [(full description)]

About this Structure

2C58 is a [Single protein] structure of sequence from [Torpedo californica] with NAG, CL, ETM, AT3 and PGE as [ligands]. Active as [Acetylcholinesterase], with EC number [3.1.1.7]. Structure known Active Site: AC1. Full crystallographic information is available from [OCA].

Reference

Structural insights into substrate traffic and inhibition in acetylcholinesterase., Colletier JP, Fournier D, Greenblatt HM, Stojan J, Sussman JL, Zaccai G, Silman I, Weik M, EMBO J. 2006 Jun 21;25(12):2746-56. Epub 2006 Jun 8. PMID:16763558

Page seeded by OCA on Tue Oct 30 13:37:15 2007