نتایج جستجو برای: directed mutagenesis
تعداد نتایج: 174092 فیلتر نتایج به سال:
Site-directed and random mutagenesis have been useful tools in molecular biology. The application of directed mutagenesis in medically important fungi has been limited by the availability of molecular genetic techniques. Even species in which efficient genetic transformation methodologies exist, mutagenesis approaches were sparsely used due to diploidism. Lack of genetic tools hindered understa...
BACKGROUND: Among all common techniques in sitedirectedmutagenesis, λ Red recombinase system has beenwidely used to knock out chromosomal genes in bacteria. In thismethod, there is always the risk of DNA Linear digestion byhost's restriction enzymes that leads to the low frequency ofrecombination. OBJECTIVES:To overcome this, we constructeda recombinant vector to disrupt phoP gene in Salmonella...
A major challenge in the post-genome era of plant biology is to determine the functions of all the genes in the plant genome. A straightforward approach to this problem is to reduce or knock out expression of a gene with the hope of seeing a phenotype that is suggestive of its function. Insertional mutagenesis is a useful tool for this type of study, but it is limited by gene redundancy, lethal...
1Department of Genetics, Cell Biology and Development and Department of Pediatrics, Masonic Cancer Center, University of Minnesota Twin Cities, Minneapolis, MN; 2Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin-Madison, Madison, WI; 3Biostatistics and Bioinformatics, Masonic Cancer Center, University of Minnesota Twin Cities, Minneapolis, MN; 4Department of Hemat...
High-throughput technologies of functional genomics such as T-DNA insertional mutagenesis and microarray expression profiling have been employed to identify genes related to pathogenicity in Magnaporthe oryzae. However, validation of the functions of individual genes identified by these high-throughput approaches is laborious. In this study, we compared two published lists of genes putatively r...
The extent of cephalosporin C(CPC) production in producing strains is related with the expression or inhibition of the relevent genes. The goal of this study was manipulate of the producing strain in order to increase its CPC production. Acremonium chrysogenum DSM 2399 is used as parent strain. Mutagenesis is performed on solid form of optimized production media. UV ray and NTG (with ...
Screening insertional mutants for loss of virulence is an effective method for investigating the molecular genetic basis of bacterial pathogenesis, but has only recently been applied to fungal pathogens. For many pathogenic fungi transformation with heterologous plasmid DNA results in complex integration events. This problem can now be circumvented for some species using restriction enzyme medi...
background the hepatitis b virus x (hbx) protein has long been recognized as an important transcriptional transactivator of several genes. human aldo-keto reductase family 1, member c1 (akr1c1), a member of the family of akr1cs, is significantly increased in hbx-expressed cells. objectives this study aimed to investigate the possible mechanism of hbx in regulating akr1c1 expression in hepg2.2.1...
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