3PQ3 Oxidoreductase date Nov 25, 2010
title Structure Of I274c Variant Of E. Coli Kate[] - Images 7-12
authors P.C.Loewen, V.Jha, S.Louis, P.Chelikani, X.Carpena, I.Fita
compound source
Molecule: Catalase Hpii
Chain: A, B, C, D
Synonym: Hydroxyperoxidase II
Ec: 1.11.1.6
Engineered: Yes
Mutation: Yes
Organism_scientific: Escherichia Coli
Organism_taxid: 83333
Gene: B1732, Jw1721, Kate
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Um255
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pks
symmetry Space Group: P 1 21 1
R_factor 0.142 R_Free 0.189
crystal
cell
length a length b length c angle alpha angle beta angle gamma
93.507 133.031 122.646 90.00 109.39 90.00
method X-Ray Diffractionresolution 1.79 Å
ligand H2S, HDD, HDE enzyme Oxidoreductase E.C.1.11.1.6 BRENDA
Gene
Ontology
ChainFunctionProcessComponent
A, D, C, B
  • catalase activity
  • peroxidase activity


  • Primary referenceModulation of heme orientation and binding by a single residue in catalase HPII of Escherichia coli., Jha V, Louis S, Chelikani P, Carpena X, Donald LJ, Fita I, Loewen PC, Biochemistry. 2011 Mar 29;50(12):2101-10. Epub 2011 Mar 3. PMID:21332158
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (1012 Kb) [Save to disk]
  • Biological Unit Coordinates (3pq3.pdb1.gz) 1001 Kb
  • LPC: Ligand-Protein Contacts for 3PQ3
  • CSU: Contacts of Structural Units for 3PQ3
  • Structure Factors (3902 Kb)
  • Retrieve 3PQ3 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3PQ3 from S2C, [Save to disk]
  • Re-refined 3pq3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3PQ3 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 3PQ3
  • 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 3PQ3, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3pq3] [3pq3_B] [3pq3_A] [3pq3_D] [3pq3_C]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domain found in 3PQ3: [Catalase ] by SMART
  • Other resources with information on 3PQ3
  • Community annotation for 3PQ3 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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