1DWK

STRUCTURE OF CYANASE WITH THE DI-ANION OXALATE BOUND AT THE ENZYME ACTIVE SITE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.146 
  • R-Value Observed: 0.138 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structure of Cyanase Reveals that a Novel Dimeric and Decameric Arrangement of Subunits is Required for Formation of the Enzyme Active Site.

Walsh, M.A.Otwinowski, Z.Perrakis, A.Anderson, P.M.Joachimiak, A.

(2000) Structure 8: 505

  • DOI: 10.1016/s0969-2126(00)00134-9
  • Primary Citation of Related Structures:  
    1DW9, 1DWK

  • PubMed Abstract: 
  • Cyanase is an enzyme found in bacteria and plants that catalyzes the reaction of cyanate with bicarbonate to produce ammonia and carbon dioxide. In Escherichia coli, cyanase is induced from the cyn operon in response to extracellular cyanate. The enz ...

    Cyanase is an enzyme found in bacteria and plants that catalyzes the reaction of cyanate with bicarbonate to produce ammonia and carbon dioxide. In Escherichia coli, cyanase is induced from the cyn operon in response to extracellular cyanate. The enzyme is functionally active as a homodecamer of 17 kDa subunits, and displays half-site binding of substrates or substrate analogs. The enzyme shows no significant amino acid sequence homology with other proteins.


    Related Citations: 
    • Characterization of High-Level Expression and Sequencing of the Escherichia Coli K-12 Cyns Gene Encoding Cyanase.
      Sung, Y., Anderson, P.M., Fuchs, J.A.
      (1987) J Bacteriol 169: 5224
    • Kinetic Properties of Cyanase.
      Anderson, P.M., Little, R.M.
      (1986) Biochemistry 25: 1621
    • Interaction of Mono- and Dianions with Cyanase: Evidence for Apparent Half-Site Binding.
      Anderson, P.M., Johnson, W.V., Endrizzi, J.A., Little, R.M., Korte, J.J.
      (1986) Biochemistry 26: 3938
    • Purification and Properties of the Inducible Enzyme Cyanase.
      Anderson, P.M.
      (1980) Biochemistry 19: 2882

    Organizational Affiliation

    Biosciences Division/Structural Biology Center, Argonne National Laboratory, Argonne, IL 60439, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CYANATE HYDRATASEABCDEFGHIJ156Escherichia coliMutation(s): 4 
EC: 4.2.1.104
Find proteins for P00816 (Escherichia coli (strain K12))
Explore P00816 
Go to UniProtKB:  P00816
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A, B, C, D, E, F, G, H, I, J
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
OXL
Query on OXL

Download CCD File 
B, C, F, G, J
OXALATE ION
C2 O4
MUBZPKHOEPUJKR-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,B,C,D,E,F,G,H,I,JL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.146 
  • R-Value Observed: 0.138 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.33α = 70.1
b = 80.93β = 71.95
c = 82.13γ = 66.42
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
CCP4phasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-05-16
    Type: Initial release
  • Version 1.1: 2011-05-07
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-07-12
    Changes: Advisory, Derived calculations
  • Version 1.4: 2019-05-08
    Changes: Data collection, Experimental preparation