Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1998-3-30
pubmed:abstractText
We have studied the effect of H2O2 on the activity of the Escherichia coli Cu,ZnSOD showing that, unlike the bovine enzyme, this bacterial Cu,ZnSOD is highly resistant to inactivation by hydrogen peroxide. In view of the key role played by oxygen radicals in bacterial killing by phagocytes, we have tested the ability of E. coli strains expressing different amounts of Cu,ZnSOD in the periplasmic space to survive the phagocytic attack of activated macrophages. Overexpression of the enzyme effectively protected the bacterial cell from macrophage killing. The results obtained support the hypothesis that in pathogenic bacteria periplasmic Cu,ZnSOD may reduce the oxyradical damages induced by the respiratory burst and therefore be important in virulence.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
243
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
804-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Overexpression of a hydrogen peroxide-resistant periplasmic Cu,Zn superoxide dismutase protects Escherichia coli from macrophage killing.
pubmed:affiliation
Dipartimento di Biologia, Università di Roma Tor Vergata, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't