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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1994-10-10
pubmed:abstractText
Linear DNA plasmids were found in the following yeasts: four strains of Kluyveromyces lactis, one of Debaryomyces hansenii, one of Wingea robertsiae and four of Pichia etchellsii. In each case, the plasmids were present as a pair of DNA molecules of different sizes. The plasmids of K. lactis strains were associated with a killer activity and their structure was similar to the known killer plasmids pGKL1 and 2. The plasmids from the other three species were different from pGKL plasmids and showed no killer activity against the yeast species tested so far. In all cases, the linear molecules possessed terminal (probably inverted) repeats and their 5' ends had a protected structure insensitive to lambda exonuclease, while the 3' ends were accessible to exonuclease III. All these strains could be efficiently cured of the plasmids by ultraviolet irradiation. The plasmids from D. hansenii (pDH1A and B) and from W. robertsiae (pWR1A and B) shared related sequences with some of the K. lactis killer plasmid genes (encoding the supposed DNA polymerases, RNA polymerase and the chitinase), suggesting related genome organization of these plasmids. The pair of plasmids from P. etchellsii (pPE1A and B) appear to be a distantly related member of the group. This pair showed no sequence homology with other plasmids, except weak homology with the putative RNA polymerase gene of pGKL2. None of the plasmids contained the sequences homologous to ORF3 and ORF4 of pGKL1 encoding the toxin resistance determinant and the toxin gamma subunit, respectively.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1350-0872
pubmed:author
pubmed:issnType
Print
pubmed:volume
140 ( Pt 6)
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1327-35
pubmed:dateRevised
2009-1-23
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Linear DNA plasmids from Pichia etchellsii, Debaryomyces hansenii and Wingea robertsiae.
pubmed:affiliation
Institut Curie, Section de Biologie, Centre Universitaire Paris XI, Orsay, France.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't