Affiliation:
1. Department of Microbiology, The University of Texas at Austin, Austin, Texas 78712
Abstract
Cells of
Pseudomonas putida
, after growth with naphthalene as sole source of carbon and energy, contain an enzyme that oxidizes (+)-
cis
-1(
r
),2(
s
)-dihydroxy-1,2-dihydronaphthalene to 1,2-dihydroxynaphthalene. The purified enzyme has a molecular weight of 102,000 and apparently consists of four 25,500 molecular weight subunits. The enzyme is specific for nicotinamide adenine dinucleotide as an electron acceptor and also oxidizes several other
cis
-dihydrodiols. However, no enzymatic activity was observed with
trans
-1,2-dihydronaphthalene, or the K-region
cis
-dihydrodiols of carcinogenic polycyclic hydrocarbons.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
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