1UKR Hydrolase date Aug 23, 1996
title Structure Of Endo-1,4-Beta-Xylanase C
authors U.Krengel, B.W.Dijkstra
compound source
Molecule: Endo-1,4-B-Xylanase I
Chain: A, B, C, D
Synonym: Xylanase
Ec: 3.2.1.8
Engineered: Yes
 Organism_scientific: Aspergillus Niger
Organism_taxid: 5061
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 21 21 21
R_factor 0.179 R_Free NULL
crystal
cell
length a length b length c angle alpha angle beta angle gamma
84.300 85.300 113.800 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.40 Å
ligand
enzyme Hydrolase E.C.3.2.1.8 BRENDA
related structures by homologous chain: 1BK1
Gene
Ontology
ChainFunctionProcessComponent
A, D, C, B


Primary referenceThree-dimensional structure of Endo-1,4-beta-xylanase I from Aspergillus niger: molecular basis for its low pH optimum., Krengel U, Dijkstra BW, J Mol Biol 1996 Oct 18;263(1):70-8. PMID:8890913
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (120 Kb) [Save to disk]
  • Biological Unit Coordinates (1ukr.pdb1.gz) 31 Kb
  • Biological Unit Coordinates (1ukr.pdb2.gz) 31 Kb
  • Biological Unit Coordinates (1ukr.pdb3.gz) 31 Kb
  • Biological Unit Coordinates (1ukr.pdb4.gz) 31 Kb
  • CSU: Contacts of Structural Units for 1UKR
  • Likely Quarternary Molecular Structure file(s) for 1UKR
  • Structure Factors (215 Kb)
  • Retrieve 1UKR in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1UKR from S2C, [Save to disk]
  • Re-refined 1ukr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1UKR 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 1UKR
  • 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 1UKR, from MSDmotif at EBI
  • Genome occurence of 1UKR's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ukra_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1ukrb_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1ukrc_, region C [Jmol] [rasmolscript] [script source]
        - Domain d1ukrd_, region D [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: [1ukr] [1ukr_D] [1ukr_A] [1ukr_B] [1ukr_C]
  • SWISS-PROT database: [P55329]
  • Domain organization of [XYNA_ASPNG] by SWISSPFAM
    • Other resources with information on 1UKR
  • Community annotation for 1UKR 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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