Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Jessie G. Levine"'
Publikováno v:
Carcinogenesis. 16:2535-2542
We used colony probe hybridization and polymerase chain reaction/DNA sequence analysis to determine the mutations in approximately 1600 revertants of Salmonella induced by cigarette smoke condensate (CSC) in the presence of S9. CSC induced approximat
Publikováno v:
Scopus-Elsevier
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We used colony probe hybridization and polymerase chain reaction/DNA sequence analysis to determine the mutations in approximately 2,400 4-aminobiphenyl (4-AB) +S9-induced revertants of the -1 frameshift allele hisD3052 and of the base-substitution a
Publikováno v:
Environmental and Molecular Mutagenesis. 20:12-18
We have used DNA colony hybridization, the polymerase chain reaction (PCR), and direct DNA sequencing to determine the mutations induced by the intercalating agent ellipticine in Salmonella typhimurium TA98 in the presence of S9. Of 400 ellipticine-i
Publikováno v:
Mutation Research/Environmental Mutagenesis and Related Subjects. 252:35-44
We have used the polymerase chain reaction (PCR) to speed the DNA sequence analysis of revertants of Salmonella typhimurium TA98. Briefly, a crude DNA extract from a single colony was prepared and used in an asymmetric PCR to amplify a 328-bp fragmen
Publikováno v:
Genetics. 149(1)
To characterize the hisD3052 −1 frameshift allele of Salmonella typhimurium, we analyzed ~6000 spontaneous revertants (rev) for a 2-base deletion hotspot within the sequence (CG)4, and we sequenced ~500 nonhotspot rev. The reversion target is a min
Publikováno v:
Environmental Health Perspectives
More single chemicals and complex environmental mixtures have been evaluated for mutagenicity at the hisD3052 allele of Salmonella, primarily in strain TA98, than in any other mutation assay. The development of colony probe hybridization procedures a
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78766f7e0d9c80c6b3f59772af9eca72
Publikováno v:
Canadian Journal of Microbiology. 28:1150-1157
Gel electrophoresis of DNA from 70 clinical strains of Salmonella revealed a heterogeneous plasmid population. Plasmid DNA, ranging in molecular weight from 1.4 × 106 to 145 × 106, was demonstrated in 26 of 32 antibiotic-resistant strains. Several
Characterization of a plasmid mutation affecting maintenance, transfer and elimination by novobiocin
Autor:
Diane E. Taylor, Jessie G. Levine
Publikováno v:
Molecular and General Genetics MGG. 174:127-133
We have isolated a mutant H group plasmid temperature-sensitive for plasmid maintenance. Unlike the wild type plasmid (pSD114), the mutant (pDT4) was eliminated at 37° C and also at 30° C after novobiocin treatment. The mutant plasmid interfered wi
Autor:
Jessie G. Levine, Diane E. Taylor
Publikováno v:
Journal of general microbiology. 116(2)
The mechanism of temperature-sensitive transfer was studied for plasmids of the H incompatibility group. Transfer depended on the temperature of the mating mixture but the growth temperature of the donor was also important, and donor cells previously
Publikováno v:
Plasmid. 5(3)
Plasmids of the N- and M-incompatibility groups were identified in a clinical isolate of Shigella sonnei. The IncN plasmid pDT200 encoded resistance to trimethoprim, streptomycin, and sulfamethoxazole, and specified N-type pili which were synthesized