3OX9 Isomerase date Sep 21, 2010
title Crystal Structure Of Ketosteroid Isomerase D40nc69sc81sc9 From P. Putida
authors P.A.Sigala, T.D.Fenn, D.Herschlag
compound source
Molecule: Steroid Delta-Isomerase
Chain: A, B, C, D
Synonym: Delta(5)-3-Ketosteroid Isomerase
Ec: 5.3.3.1
Engineered: Yes
Mutation: Yes
Organism_scientific: Pseudomonas Putida
Organism_taxid: 303
Gene: Ksi
Expression_system: Escherichia Coli
Expression_system_taxid: 511693
Expression_system_strain: Bl21
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pkk223-3
symmetry Space Group: P 1 21 1
R_factor 0.265 R_Free 0.341
crystal
cell
length a length b length c angle alpha angle beta angle gamma
44.128 129.842 45.193 90.00 114.47 90.00
method X-Ray Diffractionresolution 2.00 Å
ligand XCN enzyme Isomerase E.C.5.3.3.1 BRENDA
Gene
Ontology
ChainFunctionProcessComponent
A, D, C, B


Primary referenceQuantitative, directional measurement of electric field heterogeneity in the active site of ketosteroid isomerase., Fafarman AT, Sigala PA, Schwans JP, Fenn TD, Herschlag D, Boxer SG, Proc Natl Acad Sci U S A. 2012 Feb 7;109(6):E299-308. Epub 2012 Jan 17. PMID:22308339
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (171 Kb) [Save to disk]
  • Biological Unit Coordinates (3ox9.pdb1.gz) 83 Kb
  • Biological Unit Coordinates (3ox9.pdb2.gz) 84 Kb
  • LPC: Ligand-Protein Contacts for 3OX9
  • CSU: Contacts of Structural Units for 3OX9
  • Structure Factors (479 Kb)
  • Retrieve 3OX9 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3OX9 from S2C, [Save to disk]
  • Re-refined 3ox9 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3OX9 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 3OX9
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 3OX9, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3ox9_D] [3ox9] [3ox9_B] [3ox9_C] [3ox9_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 3OX9
  • Community annotation for 3OX9 at PDBWiki (http://pdbwiki.org)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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