Linked Life Data

16306705

Source:http://linkedlifedata.com/resource/pubmed/id/16306705

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2005-11-24
pubmed:abstractText
Fredericamycin A (FMA) is an antibiotic product of Streptomyces griseus that exhibits modest antitumor activity in vivo and in vitro, but, its functions in vivo are poorly understood. We identified this compound as an inducer of G1 arrest in the yeast, Saccharomyces cerevisiae. FMA exhibits an IC50 of 24 nM towards the growth of a disruptant of multi-drug resistance genes, W303-MLC30, and its cytotoxicity is a function of the time of exposure as well as drug dose. Addition of 0.8 microM of FMA caused aggregation of mitochondria within 10 min of incubation and the drug induced petites at high frequency after 4 h of incubation. Rho(-) cells were about 20 times more resistant to FMA than isogenic rho(+) cells. Overexpression of topoisomerase I, a previously suggested target of the drug, did not alleviate the sensitivity of the cells to FMA or the aggregation of mitochondria. Our results suggest that mitochondria are the primary target site of FMA.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0916-8451
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2213-8
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Fredericamycin A affects mitochondrial inheritance and morphology in Saccharomyces cerevisiae.
pubmed:affiliation
Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Japan.
pubmed:publicationType
Journal Article