1GQS	Hydrolase	date	Dec 04, 2001
title	Acetylcholinesterase (E.C. 3.1.1.7) Complexed With Nap
authors	P.Bar-On, C.B.Millard, M.Harel, H.Dvir, A.Enz, J.L.Sussman, I.Silm
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 0.212 R_Free 0.262
crystal cell	length a length b length c angle alpha angle beta angle gamma 111.040 111.040 137.227 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	NAG, SAF BindingDB	enzyme	Hydrolase E.C.3.1.1.7 BRENDA
related structures	by homologous chain: 1FSS, 1QIM
Gene Ontology	Chain Function Process Component A acetylcholine catabolic proc...
Primary reference	Kinetic and structural studies on the interaction of cholinesterases with the anti-Alzheimer drug rivastigmine., Bar-On P, Millard CB, Harel M, Dvir H, Enz A, Sussman JL, Silman I, Biochemistry 2002 Mar 19;41(11):3555-64. PMID:11888271

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (94 Kb) [Save to disk] Biological Unit Coordinates (1gqs.pdb1.gz) 88 Kb LPC: Ligand-Protein Contacts for 1GQS CSU: Contacts of Structural Units for 1GQS Likely Quarternary Molecular Structure file(s) for 1GQS Structure Factors (154 Kb) Retrieve 1GQS in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1GQS from S2C, [Save to disk] Re-refined 1gqs structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1GQS 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 1GQS

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 1GQS, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1gqsa_, region A [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1gqs_A] [1gqs] SWISS-PROT database: [P04058] Domain organization of [ACES_TORCA] by SWISSPFAM

Other resources with information on 1GQS

Community annotation for 1GQS at PDBWiki (http://pdbwiki.org) LED, table of lipase structures from Lipase Engineering Database. MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1GQS from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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