نتایج جستجو برای: transposon
تعداد نتایج: 6977 فیلتر نتایج به سال:
The genetic elements carrying macrolide resistance genes in Streptococcus pneumoniae isolates belonging to CC271 were investigated. The international clone Taiwan(19F)-14 was found to carry Tn2009, a Tn916-like transposon containing tet(M) and mef(E). The dual erm(B) mef(E) isolates carried Tn2010, which is similar to Tn2009 with the addition of a putative new transposon, the erm(B) genetic ele...
Sleeping Beauty (SB) DNA transposon-based vectors belong to a growing family of nonviral integrating vectors that represent attractive alternatives to conventional virus-based integrating gene vehicles. Because of concerns related to mutagenesis and/or activation of cellular genes by integrating vectors, much attention has been paid to integration site preferences and the ability of vectors to ...
BACKGROUND The cell growth and ethanol yield of Zymomonas mobilis may be detrimentally affected by salt stress frequently present in some biomass-based fermentation systems, leading to a decrease in the rate of sugar conversion to ethanol or other bioproducts. To address this problem, improving the salt tolerance of Z. mobilis is a desirable way. However, limited progress has been made in devel...
TnphoA construct was derived from the transposon Tn5, which contained a kanamycin resistance gene flanked by two IS50 elements. This construct contains a version of the alkaline phosphatase gene with its signal sequence and promoter deleted, which will result in a blue colony phenotype on X-phos (5-bromo-4-chloro-3-indolyl phosphate toluidine salt) containing media when secreted into the peripl...
Transposon-based vectors represent promising new tools for chromosomal transgene insertion and establishment of persistent gene expression in vivo. Here, we report the development of helper-independent transposon-transposase (HITT) vectors, which contain on single plasmids (i) a Sleeping Beauty (SB) transposon containing the transgene and (ii) a SB transposase expression cassette. To obtain an ...
Strains of Caulobacter crescentus, Pseudomonas putida, Acinetobacter calcoaceticus, Rhizobium meliloti, and Rhodopseudomonas sphaeroides carrying the kanamycin resistance-encoding transposon Tn5 were 15 to 500 times more resistant to streptomycin than transposon-free strains. The streptomycin resistance determinant, which is separable from the kanamycin resistance determinant of Tn5, was not ex...
Tn7::In2-8 contains sat2-aadB-catB2(deltaattC)-dfrA1-sat2-aadA1-orfX in the variable region of a class 2 integron embedded in the Tn7-like transposon. This novel transposon was inserted in its preferred site downstream of the glms gene in Acinetobacter baumannii. Acquisition of the pseudocassette catB2 could have arisen by a secondary-site integrase-mediated intermolecular recombination event.
Currently, no transposon-based method for the mutagenesis of Schizosaccharomyces pombe exists. We have developed such a system based on the introduction of the hermes transposon from the housefly into S. pombe. This system efficiently disrupts open reading frames and allows the insertion sites to be readily identified.
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