1H23 Hydrolase date Jul 30, 2002
title Structure Of Acetylcholinesterase (E.C. 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
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
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 Diffractionresolution 2.15 Å
ligand E12, NAG BindingDB enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1H22, 1QIE
  • acetylcholine catabolic proc...

  • Primary referenceAcetylcholinesterase 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] (100 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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