2CEK	Hydrolase	date	Feb 08, 2006
title	Conformational Flexibility In The Peripheral Site Of Torpedo Californica Acetylcholinesterase Revealed By The Complex St With A Bifunctional Inhibitor
authors	B.Sanson, J.P.Colletier, F.Nachon, E.Gabellieri, C.Fattorusso, G. M.Weik
compound		source
Molecule: Acetylcholinesterase Chain: A Synonym: Ache Ec: 3.1.1.7		Organism_scientific: Torpedo Californica Organism_common: Pacific Electric Ray Organism_taxid: 7787 Variant: G2 Form Organ: Electric Organ Tissue: Electroplaque
symmetry	Space Group: P 31 2 1	R_factor 0.175 R_Free 0.206
crystal cell	length a length b length c angle alpha angle beta angle gamma 111.940 111.940 137.120 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	MES, N8T, NAG, PGE	enzyme	Hydrolase E.C.3.1.1.7 BRENDA
Gene Ontology	Chain Function Process Component A acetylcholine catabolic proc...
Primary reference	Conformational flexibility in the peripheral site of Torpedo californica acetylcholinesterase revealed by the complex structure with a bifunctional inhibitor., Colletier JP, Sanson B, Nachon F, Gabellieri E, Fattorusso C, Campiani G, Weik M, J Am Chem Soc. 2006 Apr 12;128(14):4526-7. PMID:16594661

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (110 Kb) [Save to disk] Biological Unit Coordinates (2cek.pdb1.gz) 203 Kb LPC: Ligand-Protein Contacts for 2CEK CSU: Contacts of Structural Units for 2CEK Likely Quarternary Molecular Structure file(s) for 2CEK Structure Factors (446 Kb) Retrieve 2CEK in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2CEK from S2C, [Save to disk] Re-refined 2cek structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2CEK in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 2CEK

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2CEK, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2cek] [2cek_A] SWISS-PROT database: [P04058] Domain organization of [ACES_TORCA] by SWISSPFAM

Other resources with information on 2CEK

Community annotation for 2CEK at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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