Antonie van Leeuwenhoek

, Volume 35, Issue 1, pp 344–360 | Cite as

Occurrence of inducible and NAD(P)-independent primary alcohol dehydrogenases in an alkane-oxidizingPseudomonas

  • A. C. van der Linden
  • Rosalina Huybregtse
Article

Abstract

Pseudomonas aeruginosa (strain 473) constitutively contains a soluble NADP-linked dehydrogenase active towards primary alcohols. In addition, at least two NAD(P)-independent primary alcohol dehydrogenases can be induced by growing this strain on primary alcohols,α,ω-diols orn-alkanes. These inducible enzymes were found to be bound to cellular structures. They reduce bovine cytochromec and various dyes, but not oxygen. The main difference between the inducible enzymes is their different capacity to oxidize ethanol. Noteworthy properties of the enzymes are:
  1. 1)

    the affinities for the straight-chain primary alcohols increase with increasing chain length (tested up to 1-decanol);

     
  2. 2)

    the affinities decrease when polar atoms or groups are introduced into the alcohol molecule;

     
  3. 3)

    enzyme preparations as well as intact cells, when provided with a mixture of alcohols, first oxidize the compound with the lowest solubility in water.

     

These properties can be explained by assuming that hydrophobic bonds are formed between the enzyme and aliphatic parts of the alcohol molecule.

Keywords

Oxygen Alcohol Chain Length Pseudomonas Aeruginosa Lower Solubility 

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Copyright information

© Swets & Zeitlinger 1969

Authors and Affiliations

  • A. C. van der Linden
    • 1
  • Rosalina Huybregtse
    • 1
  1. 1.Koninklijke/Shell LaboratoriumAmsterdamThe Netherlands

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