1H23	Hydrolase	date	Jul 30, 2002
title	Structure Of Acetylcholinesterase (E.C. 3.1.1.7) Complexed W (-)-Bis(12)-Hupyridone At 2.15a Resolution
authors	D.M.Wong, H.M.Greenblatt, P.R.Carlier, Y.F.Han, Y.P.Pang, I.Silma J.L.Sussman
compound		source
Molecule: Acetylcholinesterase Chain: A Synonym: Ache Ec: 3.1.1.7 Other_details: Inter-Monomer Disulfide Bridge		Organism_scientific: Torpedo Californica Organism_common: Pacific Electric Ray Organism_taxid: 7787 Variant: G2 Form Organ: Electric Organ Tissue: Electroplaque Other_details: Synthetic Bivalent Hupa-Like Dimer, (S, S)-( Bis(12)-Hupyridone ((S, S)-(-)-N, N'-Di-5'- -[5', 6', 7', 8 Tetrahydro-2'(1'H)-Quinolinonyl] 1, 12-Diaminododecane) Dihydrochloride, With One Monomer Unit Bound To The 'Anioni Subsite, Near The Bottom Of The Active Site Gorge, And The Monomer Unit Bound To The 'Peripheral' Anionic Site At The The Gorge, Thus Spanning The Active Site Gorge.
symmetry	Space Group: P 31 2 1	R_factor 0.189 R_Free 0.215
crystal cell	length a length b length c angle alpha angle beta angle gamma 111.794 111.794 137.775 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.15 Å
ligand	E12, NAG BindingDB	enzyme	Hydrolase E.C.3.1.1.7 BRENDA
related structures	by homologous chain: 1H22, 1QIE
Gene Ontology	Chain Function Process Component A acetylcholine catabolic proc...
Primary reference	Acetylcholinesterase complexed with bivalent ligands related to huperzine a: experimental evidence for species-dependent protein-ligand complementarity., Wong DM, Greenblatt HM, Dvir H, Carlier PR, Han YF, Pang YP, Silman I, Sussman JL, J Am Chem Soc. 2003 Jan 15;125(2):363-73. PMID:12517147

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (98 Kb) [Save to disk] Biological Unit Coordinates (1h23.pdb1.gz) 178 Kb LPC: Ligand-Protein Contacts for 1H23 CSU: Contacts of Structural Units for 1H23 Likely Quarternary Molecular Structure file(s) for 1H23 Structure Factors (401 Kb) Retrieve 1H23 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1H23 from S2C, [Save to disk] Re-refined 1h23 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1H23 in 3D

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Visual 3D analysis of 1H23

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 1H23, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1h23a_, 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: [1h23_A] [1h23] SWISS-PROT database: [P04058] Domain organization of [ACES_TORCA] by SWISSPFAM

Other resources with information on 1H23

Community annotation for 1H23 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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