1IEX Crystal structure of barley beta-D-glucan glucohydrolase isoenzyme Exo1 in complex with 4I,4III,4V-S-trithiocellohexaose date
authors Hrmova, M., DeGori, R., Fincher, G.B., Smith, B.J., Driguez, H., Varghese, J.N.
compound source
R_Free 0.211
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution 2.20
ligand BGC, BMA, FUC, MAN, NAG, SGC enzyme
related structures by homologous chain: 1EX1, 1J8V

Primary referenceCatalytic mechanisms and reaction intermediates along the hydrolytic pathway of a plant beta-D-glucan glucohydrolase., Hrmova M, Varghese JN, De Gori R, Smith BJ, Driguez H, Fincher GB, Structure (Camb) 2001 Nov;9(11):1005-16. PMID:11709165
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (103 Kb) [Save to disk]
  • Biological Unit Coordinates (1iex.pdb1.gz) 98 Kb
  • LPC: Ligand-Protein Contacts for 1IEX
  • CSU: Contacts of Structural Units for 1IEX
  • Likely Quarternary Molecular Structure file(s) for 1IEX
  • Retrieve 1IEX in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1IEX from S2C, [Save to disk]
  • View 1IEX 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 1IEX
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1IEX, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1iexa1, region A:1-388 [Jmol] [rasmolscript] [script source]
        - Domain d1iexa2, region A:389-603 [Jmol] [rasmolscript] [script source]
  • Fold representative 1iex 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: [1iex_A] [1iex]
  • SWISS-PROT database: [Q9XEI3]
  • Domain organization of [Q9XEI3_HORVD] by SWISSPFAM
  • Other resources with information on 1IEX
  • Community annotation for 1IEX 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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