1KEK Oxidoreductase date Nov 16, 2001
title Crystal Structure Of The Free Radical Intermediate Of Pyruvate:Ferredoxin Oxidoreductase
authors E.Chabriere, X.Vernede, B.Guigliarelli, M.H.Charon, E.C.Hatchikian, J.C.Fontecilla-Camps
compound source
Molecule: Pyruvate-Ferredoxin Oxidoreductase
Chain: A, B
Organism_scientific: Desulfovibrio Africanus
Organism_taxid: 873
symmetry Space Group: P 21 21 21
R_factor 0.178 R_Free 0.227
length a length b length c angle alpha angle beta angle gamma
86.110 145.760 210.260 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.90 Å
ligand CA, CO2, HTL, MG, SF4 enzyme Oxidoreductase E.C. BRENDA
related structures by homologous chain: 1B0P
A, B
  • pyruvate synthase activity

  • Primary referenceCrystal structure of the free radical intermediate of pyruvate:ferredoxin oxidoreductase., Chabriere E, Vernede X, Guigliarelli B, Charon MH, Hatchikian EC, Fontecilla-Camps JC, Science 2001 Dec 21;294(5551):2559-63. PMID:11752578
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (426 Kb) [Save to disk]
  • Biological Unit Coordinates (1kek.pdb1.gz) 418 Kb
  • LPC: Ligand-Protein Contacts for 1KEK
  • CSU: Contacts of Structural Units for 1KEK
  • Likely Quarternary Molecular Structure file(s) for 1KEK
  • Retrieve 1KEK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KEK from S2C, [Save to disk]
  • View 1KEK 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 1KEK
  • 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 1KEK, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1keka1, region A:2-258 [Jmol] [rasmolscript] [script source]
        - Domain d1keka3, region A:259-415 [Jmol] [rasmolscript] [script source]
        - Domain d1keka4, region A:416-668 [Jmol] [rasmolscript] [script source]
        - Domain d1keka5, region A:669-785 [Jmol] [rasmolscript] [script source]
        - Domain d1keka2, region A:786-1232 [Jmol] [rasmolscript] [script source]
        - Domain d1kekb1, region B:2-258 [Jmol] [rasmolscript] [script source]
        - Domain d1kekb3, region B:259-415 [Jmol] [rasmolscript] [script source]
        - Domain d1kekb4, region B:416-668 [Jmol] [rasmolscript] [script source]
        - Domain d1kekb5, region B:669-785 [Jmol] [rasmolscript] [script source]
        - Domain d1kekb2, region B:786-1232 [Jmol] [rasmolscript] [script source]
  • Fold representative 1kek 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: [1kek_A] [1kek] [1kek_B]
  • SWISS-PROT database: [P94692]
  • Domain organization of [P94692_DESAF] by SWISSPFAM
  • Domain found in 1KEK: [EKR ] by SMART
  • Other resources with information on 1KEK
  • Community annotation for 1KEK 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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