ISDA

Deposition Date 2006-02-08

Release Date 2006-04-10

Last Version Date 2024-10-16

Entry Detail

PDB ID:

2CEK

Keywords:

HYDROLASE

Title:

Conformational Flexibility in the Peripheral Site of Torpedo californica Acetylcholinesterase Revealed by the Complex Structure with a Bifunctional Inhibitor

Biological Source:

Source Organism:

TORPEDO CALIFORNICA (Taxon ID: 7787)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 31 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:ACETYLCHOLINESTERASE
Gene (Uniprot):ache
Chain IDs:A
Chain Length:535
Number of Molecules:1
Biological Source:TORPEDO CALIFORNICA

UniProt ID:P04058 Pfam ID:PF00135 EC:3.1.1.7

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
ASN	A	ASN	GLYCOSYLATION SITE

Ligand Molecules

MES

N8T

NAG

PGE

Primary Citation

Conformational flexibility in the peripheral site of Torpedo californica acetylcholinesterase revealed by the complex structure with a bifunctional inhibitor.

Colletier, J.P, Sanson, B, Nachon, F, Gabellieri, E, Fattorusso, C, Campiani, G, Weik, M.Show

J. Am. Chem. Soc. 128 4526 4527 (2006)

PMID: 16594661 DOI: 10.1021/ja058683b

Abstact

The X-ray crystallographic structure of Torpedo californica acetylcholinesterase (TcAChE) in complex with the bifunctional inhibitor NF595, a potentially new anti-Alzheimer drug, has been solved. For the first time in TcAChE, a major conformational change in the peripheral-site tryptophan residue is observed upon complexation. The observed conformational flexibility highlights the dynamic nature of protein structures and is of importance for structure-based drug design.

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Primary Citation of related structures