2OXI

REFINED CRYSTAL STRUCTURE OF CU-SUBSTITUTED ALCOHOL DEHYDROGENASE AT 2.1 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Work: 0.160 
  • R-Value Observed: 0.160 

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This is version 1.3 of the entry. See complete history


Literature

Refined structure of Cu-substituted alcohol dehydrogenase at 2.1 A resolution.

Al-Karadaghi, S.Cedergren-Zeppezauer, E.S.Dauter, Z.Wilson, K.S.

(1995) Acta Crystallogr D Biol Crystallogr 51: 805-813

  • DOI: 10.1107/S090744499500045X
  • Primary Citation of Related Structures:  
    2OXI

  • PubMed Abstract: 
  • Liver alcohol dehydrogenase (LADH) is a Zn(II)-dependent dimeric enzyme. LADH with the active-site Zn(II) substituted by Cu(II) resembles blue (type I) copper proteins by its spectroscopic characteristics. In this work we present the X-ray structure of the active site Cu(II)-substituted LADH complex with NADH and dimethyl sulfoxide (DMSO) ...

    Liver alcohol dehydrogenase (LADH) is a Zn(II)-dependent dimeric enzyme. LADH with the active-site Zn(II) substituted by Cu(II) resembles blue (type I) copper proteins by its spectroscopic characteristics. In this work we present the X-ray structure of the active site Cu(II)-substituted LADH complex with NADH and dimethyl sulfoxide (DMSO). The structure was solved by molecular replacement. The space group is P2(1) with cell dimensions a = 44.4, b = 180.6, c = 50.8 A and beta = 108 degrees. There is one dimer of the enzyme in the asymmetric unit. The refinement was carried out to a crystallographic R-factor of 16.1% for 41 119 unique reflections in the resolution range 12.0 to 2.1 A. The coordination geometry of Cu(II) in LADH is compared with the active-site metal coordination in the Zn-LADH-NADH-DMSO complex and blue-copper proteins. The distances from the metal to the protein ligands (Cys46, His67 and Cys174) are similar for the Zn(II) and Cu(II) ions. The distances of the O atom of the inhibitor DMSO to the Cu(II) ion in the two subunits of the dimer are 3.19 and 3.45 A. These are considerably longer than the corresponding distances for the Zn(II) enzyme, 2.19 and 2.15 A. The Cu(II) ion is positioned nearly in the plane of the three protein ligands (NS(2)) with a geometry similar to the trigonal arrangement of the three strongly bound ligands (N(2)S) in blue-copper proteins. This coordination probably accounts for the similarity of the spectral characteristics of Cu(II)-LADH and type I copper proteins.


    Related Citations: 
    • Copper(II)-Substituted Horse Liver Alcohol Dehydrogenase: Structure of the Minor Species
      Formicka, G., Zeppezauer, M., Fey, F., Huettermann, J.
      (1992) FEBS Lett 309: 92
    • Electronic Absorption and Epr Spectroscopy of Copper Alcohol Dehydrogenase: Pink, Violet and Green Forms of a Type 1 Copper Center Analog
      Maret, W., Kozlowski, H.
      (1987) Biochim Biophys Acta 912: 329
    • Resonance Raman Spectroscopy of Blue Copper Proteins: Ligand and Coenzyme Effects in Copper(II)-Substituted Liver Alcohol Dehydrogenase
      Maret, W., Shiemke, A.K., Wheeler, W.D., Loehr, T.M., Sanders-Loehr, J.
      (1986) J Am Chem Soc 108: 6351
    • Resonance Raman Spectra of Copper(II)-Substituted Liver Alcohol Dehydrogenase: A Type 1 Copper Analogue
      Maret, W., Zeppezauer, M., Sanders-Loehr, J., Loehr, T.M.
      (1983) Biochemistry 22: 3202
    • An Epr Study of the Blue Copper Center in Horse Liver Alcohol Dehydrogenase
      Maret, W., Zeppezauer, M., Desideri, A., Morpurgo, L., Rotilio, G.
      (1983) Biochim Biophys Acta 743: 200
    • Ligand Binding to the Blue Copper Center of Horse Liver Alcohol Dehydrogenase
      Maret, W., Zeppezauer, M., Desideri, A., Morpurgo, L., Rotilio, G.
      (1981) FEBS Lett 136: 72
    • Active Site-Specific Reconstituted Copper(II) Horse Liver Alcohol Dehydrogenase: A Biological Model for Type 1 Cu and its Changes Upon Ligand Binding and Conformational Transitions
      Maret, W., Dietrich, H., Ruf, H.-H., Zeppezauer, M.
      (1980) J Inorg Biochem 12: 241

    Organizational Affiliation

    Department of Structural Chemistry, Arrhenius Laboratories for Natural Sciences, Stockholm University, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ALCOHOL DEHYDROGENASEA, B374Equus caballusMutation(s): 0 
EC: 1.1.1.1
UniProt
Find proteins for P00327 (Equus caballus)
Explore P00327 
Go to UniProtKB:  P00327
Protein Feature View
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  • Reference Sequence
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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Work: 0.160 
  • R-Value Observed: 0.160 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.4α = 90
b = 180.6β = 108
c = 50.8γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Advisory, Derived calculations, Other