1ECQ Lyase date Jan 25, 2000
title E. Coli Glucarate Dehydratase Bound To 4-Deoxyglucarate
authors A.M.Gulick, B.K.Hubbard, J.A.Gerlt, I.Rayment
compound source
Molecule: Glucarate Dehydratase
Chain: A, B, C, D
Engineered: Yes
Organism_scientific: Escherichia Coli
Organism_taxid: 562
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_plasmid: Pet
symmetry Space Group: P 1
R_factor 0.209 R_Free 0.305
length a length b length c angle alpha angle beta angle gamma
71.108 84.602 98.779 103.46 93.97 113.03
method X-Ray Diffractionresolution 2.00 Å
ligand DXG, IPA, MG enzyme Lyase E.C. BRENDA
related structures by homologous chain: 1BQG, 1JDF
A, D, C, B

Primary referenceEvolution of enzymatic activities in the enolase superfamily: crystallographic and mutagenesis studies of the reaction catalyzed by D-glucarate dehydratase from Escherichia coli., Gulick AM, Hubbard BK, Gerlt JA, Rayment I, Biochemistry 2000 Apr 25;39(16):4590-602. PMID:10769114
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (301 Kb) [Save to disk]
  • Biological Unit Coordinates (1ecq.pdb1.gz) 295 Kb
  • LPC: Ligand-Protein Contacts for 1ECQ
  • CSU: Contacts of Structural Units for 1ECQ
  • Likely Quarternary Molecular Structure file(s) for 1ECQ
  • Structure Factors (1214 Kb)
  • Retrieve 1ECQ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1ECQ from S2C, [Save to disk]
  • Re-refined 1ecq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1ECQ 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 1ECQ
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1ECQ, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ecqa1, region A:138-446 [Jmol] [rasmolscript] [script source]
        - Domain d1ecqa2, region A:3-137 [Jmol] [rasmolscript] [script source]
        - Domain d1ecqb1, region B:138-446 [Jmol] [rasmolscript] [script source]
        - Domain d1ecqb2, region B:5-137 [Jmol] [rasmolscript] [script source]
        - Domain d1ecqc1, region C:138-446 [Jmol] [rasmolscript] [script source]
        - Domain d1ecqc2, region C:4-137 [Jmol] [rasmolscript] [script source]
        - Domain d1ecqd1, region D:138-446 [Jmol] [rasmolscript] [script source]
        - Domain d1ecqd2, region D:5-137 [Jmol] [rasmolscript] [script source]
  • Fold representative 1ecq from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [1ecq_A] [1ecq] [1ecq_D] [1ecq_C] [1ecq_B]
  • SWISS-PROT database: [P0AES2]
  • Domain organization of [GUDH_ECOLI] by SWISSPFAM
  • Domain found in 1ECQ: [MR_MLE ] by SMART
  • Other resources with information on 1ECQ
  • Community annotation for 1ECQ at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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