Construction of an Escherichia coli K-12 strain deleted for manganese and iron superoxide dismutase genes and its use in cloning the iron superoxide dismutase gene of Legionella pneumophila

1992 ◽  
Vol 232 (3) ◽  
pp. 427-430 ◽  
Author(s):  
Howard M. Steinman
Keyword(s):  
Escherichia Coli ◽  
Superoxide Dismutase ◽  
Legionella Pneumophila ◽  
Iron Superoxide Dismutase ◽  
Superoxide Dismutase Gene ◽  
K 12

scholarly journals Cloning of the iron superoxide dismutase gene (sodB) in Escherichia coli K-12.

1984 ◽  
Vol 159 (1) ◽  
pp. 418-420 ◽  
Author(s):  
H Sakamoto ◽  
D Touati
Keyword(s):  
Escherichia Coli ◽  
Superoxide Dismutase ◽  
Iron Superoxide Dismutase ◽  
Superoxide Dismutase Gene ◽  
K 12

Response of hydroperoxidase and superoxide dismutase deficient mutants of Escherichia coli K-12 to oxidative stress

1988 ◽  
Vol 34 (10) ◽  
pp. 1171-1176 ◽  
Author(s):  
Herb E. Schellhorn ◽  
Hosni M. Hassan
Keyword(s):  
Escherichia Coli ◽  
Superoxide Dismutase ◽  
Oxidant Stress ◽  
Relative Importance ◽  
E Coli ◽  
Redox Active ◽  
Chemical Oxidants ◽  
Dependent Growth ◽  
K 12 ◽  
Generalized Transduction

In Escherichia coli, the coordinate action of two antioxidant enzymes, superoxide dismutase and hydroperoxidase (catalase), protect the cell from the deleterious effects of oxyradicals generated during normal aerobic respiration. To evaluate the relative importance of these two classes of enzymes, strains of E. coli deficient in superoxide dismutase and (or) hydroperoxidase were constructed by generalized transduction and their physiological responses to oxygen and oxidant stress examined. Superoxide dismutase was found to be more important than hydroperoxidase in preventing oxygen-dependent growth inhibition and mutagenesis, and in reducing sensitivity to redox-active compounds known to generate the superoxide anion. However, both types of enzymes were required for an effective defense against chemical oxidants that generate superoxide radicals and hydrogen peroxide.

scholarly journals The iron superoxide dismutase of Legionella pneumophila is essential for viability.

1994 ◽  
Vol 176 (12) ◽  
pp. 3790-3799 ◽  
Author(s):  
A B Sadosky ◽  
J W Wilson ◽  
H M Steinman ◽  
H A Shuman
Keyword(s):  
Superoxide Dismutase ◽  
Legionella Pneumophila ◽  
Iron Superoxide Dismutase

Synechocystis Fe superoxide dismutase gene confers oxidative stress tolerance to Escherichia coli

2004 ◽  
Vol 316 (2) ◽  
pp. 540-544 ◽  
Author(s):  
Jyotirmoy Bhattacharya ◽  
Krishnarup GhoshDastidar ◽  
Anirban Chatterjee ◽  
Manoj Majee ◽  
Arun Lahiri Majumder
Keyword(s):  
Oxidative Stress ◽  
Escherichia Coli ◽  
Superoxide Dismutase ◽  
Stress Tolerance ◽  
Oxidative Stress Tolerance ◽  
Superoxide Dismutase Gene

scholarly journals Escherichia coli iron superoxide dismutase targeted to the mitochondria of yeast cells protects the cells against oxidative stress.

1995 ◽  
Vol 92 (10) ◽  
pp. 4219-4223 ◽  
Author(s):  
R. Balzan ◽  
W. H. Bannister ◽  
G. J. Hunter ◽  
J. V. Bannister
Keyword(s):  
Oxidative Stress ◽  
Escherichia Coli ◽  
Superoxide Dismutase ◽  
Yeast Cells ◽  
Iron Superoxide Dismutase
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