4URF

Molecular Genetic and Crystal Structural Analysis of 1-(4- Hydroxyphenyl)-Ethanol Dehydrogenase from Aromatoleum aromaticum EbN1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.1 Å
  • R-Value Free: 0.133 
  • R-Value Work: 0.109 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Molecular Genetic and Crystal Structural Analysis of 1-(4-Hydroxyphenyl)-Ethanol Dehydrogenase from 'Aromatoleum Aromaticum' Ebn1.

Busing, I.Hoffken, H.W.Breuer, M.Wohlbrand, L.Hauer, B.Rabus, R.

(2015) J.Mol.Microbiol.Biotechnol. 25: 327

  • DOI: 10.1159/000439113
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The dehydrogenation of 1-(4-hydroxyphenyl)-ethanol to 4-hydroxyacetophenone represents the second reaction step during anaerobic degradation of p-ethylphenol in the denitrifying bacterium 'Aromatoleum aromaticum' EbN1. Previous proteogenomic studies ...

    The dehydrogenation of 1-(4-hydroxyphenyl)-ethanol to 4-hydroxyacetophenone represents the second reaction step during anaerobic degradation of p-ethylphenol in the denitrifying bacterium 'Aromatoleum aromaticum' EbN1. Previous proteogenomic studies identified two different proteins (ChnA and EbA309) as possible candidates for catalyzing this reaction [Wöhlbrand et al: J Bacteriol 2008;190:5699-5709]. Physiological-molecular characterization of newly generated unmarked in-frame deletion and complementation mutants allowed defining ChnA (renamed here as Hped) as the enzyme responsible for 1-(4-hydroxyphenyl)-ethanol oxidation. Hped [1-(4-hydroxyphenyl)-ethanol dehydrogenase] belongs to the 'classical' family within the short-chain alcohol dehydrogenase/reductase (SDR) superfamily. Hped was overproduced in Escherichia coli, purified and crystallized. The X-ray structures of the apo- and NAD(+)-soaked form were resolved at 1.5 and 1.1 Å, respectively, and revealed Hped as a typical homotetrameric SDR. Modeling of the substrate 4-hydroxyacetophenone (reductive direction of Hped) into the active site revealed the structural determinants of the strict (R)-specificity of Hped (Phe(187)), contrasting the (S)-specificity of previously reported 1-phenylethanol dehydrogenase (Ped; Tyr(93)) from strain EbN1 [Höffken et al: Biochemistry 2006;45:82-93].


    Organizational Affiliation

    Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Oldenburg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYCLOHEXANOL DEHYDROGENASE
A, B
248Aromatoleum aromaticum (strain EbN1)Mutation(s): 0 
Gene Names: chnA
Find proteins for Q5P8S7 (Aromatoleum aromaticum (strain EbN1))
Go to UniProtKB:  Q5P8S7
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1PS
Query on 1PS

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Download CCD File 
A, B
3-PYRIDINIUM-1-YLPROPANE-1-SULFONATE
1-(3-SULFOPROPYL) PYRIDINIUM, PPS
C8 H11 N O3 S
REEBJQTUIJTGAL-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

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Download CCD File 
A, B
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
NAD
Query on NAD

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Download CCD File 
A, B
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
 Ligand Interaction
BCT
Query on BCT

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B
BICARBONATE ION
C H O3
BVKZGUZCCUSVTD-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

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A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.1 Å
  • R-Value Free: 0.133 
  • R-Value Work: 0.109 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 121.500α = 90.00
b = 55.100β = 134.40
c = 86.300γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-07-08
    Type: Initial release
  • Version 1.1: 2016-01-13
    Type: Database references