Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2006-11-1
pubmed:abstractText
We have evaluated the role of monofunctional heme-containing catalase encoded by cat-1 gene from the soil bacterium Comamonas terrigena N3H in the response to various forms of oxidative stress. Our results indicate that this constitutively expressed catalase represents the major source for the defence of Comamonas terrigena cells against toxic peroxides but the cells can express also a second form of catalase that is bigger and its regulation is probably more complicated. The sequence analysis confirmed the presence of highly conserved catalase sequence motifs in two environmental strains of Comamonas terrigena but in those strains that were not exposed to oxidative stress, no such sequence motif could be detected. The results obtained underline the importance of catalase expression in the defence mechanism against oxidative stress in bacterial cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0343-8651
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
430-4
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
The expression and diversity of catalases in isolates of genus Comamonas in response to the oxidative stress of a polluted environment.
pubmed:affiliation
Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, SK-84551, Bratislava, Slovakia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't