Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1999-6-28
pubmed:databankReference
pubmed:abstractText
Streptomyces coelicolor Müller contains two types of superoxide dismutase (SOD) containing Ni (encoded by sodN) or Fe (encoded by sodF). Unlike a single species of Fe-containing SOD in Müller strain, multiple forms of FeSODs were detected in S. coelicolor A3(2) strain by activity staining and Western blot analysis. Genomic Southern hybridization suggested the presence of at least two copies of the sodF-like gene in A3(2). Two different genes for FeSOD (sodF1 and sodF2) were isolated from the phage library of A3(2) genome. The nucleotide sequence of the sodF1 coding region was identical with the unique sodF gene from Müller while that of sodF2 shared 88% identity. The gene products of sodF1 and sodF2 were identified by activity staining and immunoblot analysis. Expression from the sodF1 gene was repressed by nickel as sensitively as Müller sodF, suggesting the presence of Ni-responsive regulatory site within the region shared by the two genes. Among 12 other Streptomyces species examined, only S. fradiae contained two FeSOD-like polypeptides. We postulate that the additional copy of the sodF gene (sodF2) was provided by the horizontal transfer from remotely related bacteria.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:day
29
pubmed:volume
231
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
87-93
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Duplicate genes for Fe-containing superoxide dismutase in Streptomyces coelicolor A3(2).
pubmed:affiliation
Department of Microbiology, College of Natural Sciences and Research Center for Molecular Microbiology, Seoul National University, Seoul 151-742, South Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't