Linked Life Data

16412384

Source:http://linkedlifedata.com/resource/pubmed/id/16412384

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2006-1-24
pubmed:abstractText
In Escherichia coli, the SoxR regulon orchestrates genes for defense against certain types of oxidative stress through the SoxR-regulated synthesis of the SoxS transcription activator. The Pseudomonas putida genome did not reveal a clear soxS homolog. The P. putida SoxR protein appears to be functional: its expression in an E. coli DeltasoxR strain restored the paraquat inducibility of soxS. Of nine candidate P. putida oxidative stress genes, which are known to be SoxR regulon in E. coli, tested for response to superoxide or nitric oxide, fumC-1, sodA, zwf-1, and particularly fpr, encoding ferredoxin:NADP(+) reductase, were induced, all independent of P. putida soxR. Disruption of the fpr and finR, a regulatory protein that is required for paraquat-dependent expression of the fpr, resulted in more oxidative stress sensitivity. However, a P. putida soxR-deletion strain had normal resistance to the superoxide-generating agent paraquat. The data presented here show that the genetic responses to superoxide stress in P. putida differ markedly from those seen in E. coli and Salmonella, and the role of P. putida soxR remains to be established.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
341
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
51-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Regulation of superoxide stress in Pseudomonas putida KT2440 is different from the SoxR paradigm in Escherichia coli.
pubmed:affiliation
Division of Environmental Science and Ecological Engineering, Korea University, Anam-Dong 5Ga, Seoul. wpark@korea.ac.kr
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural