1P81 Oxidoreductase date May 06, 2003
title Crystal Structure Of The D181e Variant Of Catalase Hpii From
authors P.Chelikani, X.Carpena, I.Fita, P.C.Loewen
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: 562
Gene: Kate
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Um255
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pd181e
symmetry Space Group: P 1 21 1
R_factor 0.172 R_Free 0.216
crystal
cell
length a length b length c angle alpha angle beta angle gamma
93.380 132.860 122.040 90.00 109.50 90.00
method X-Ray Diffractionresolution 1.81 Å
ligand HDD enzyme Oxidoreductase E.C.1.11.1.6 BRENDA
related structures by homologous chain: 1CF9, 1GG9
Gene
Ontology
ChainFunctionProcessComponent
A, D, C, B
  • catalase activity
  • peroxidase activity


  • Primary referenceAn electrical potential in the access channel of catalases enhances catalysis., Chelikani P, Carpena X, Fita I, Loewen PC, J Biol Chem 2003 Aug 15;278(33):31290-6. Epub 2003 May 29. PMID:12777389
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (520 Kb) [Save to disk]
  • Biological Unit Coordinates (1p81.pdb1.gz) 512 Kb
  • LPC: Ligand-Protein Contacts for 1P81
  • CSU: Contacts of Structural Units for 1P81
  • Likely Quarternary Molecular Structure file(s) for 1P81
  • Structure Factors (2034 Kb)
  • Retrieve 1P81 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1P81 from S2C, [Save to disk]
  • Re-refined 1p81 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1P81 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 1P81
  • 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 1P81, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1p81a2, region A:27-597 [Jmol] [rasmolscript] [script source]
        - Domain d1p81a1, region A:598-753 [Jmol] [rasmolscript] [script source]
        - Domain d1p81b2, region B:27-597 [Jmol] [rasmolscript] [script source]
        - Domain d1p81b1, region B:598-753 [Jmol] [rasmolscript] [script source]
        - Domain d1p81c2, region C:27-597 [Jmol] [rasmolscript] [script source]
        - Domain d1p81c1, region C:598-753 [Jmol] [rasmolscript] [script source]
        - Domain d1p81d2, region D:27-597 [Jmol] [rasmolscript] [script source]
        - Domain d1p81d1, region D:598-753 [Jmol] [rasmolscript] [script source]
  • 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: [1p81] [1p81_A] [1p81_C] [1p81_D] [1p81_B]
  • SWISS-PROT database: [P21179]
  • Domain organization of [CATE_ECOLI] by SWISSPFAM
  • Domain found in 1P81: [Catalase ] by SMART
  • Other resources with information on 1P81
  • Community annotation for 1P81 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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