2c4h

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spinqualitylabelsall models 2c4h, resolution 2.15Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

TORPEDO CALIFORNICA ACETYLCHOLINESTERASE IN COMPLEX WITH 500MM 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

2C4H is a [Single protein] structure of sequence from [Torpedo californica] with NAG, NDG, CL, ACT, PGE, AT3 and ACE as [ligands]. Active as [[1]], with EC number [3.1.1.7]. 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

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