Site-specific bacterial chromosome engineering mediated by IntA integrase from Rhizobium etli
نویسندگان
چکیده
منابع مشابه
Site-specific bacterial chromosome engineering: ΦC31 integrase mediated cassette exchange (IMCE).
The bacterial chromosome may be used to stably maintain foreign DNA in the mega-base range. Integration into the chromosome circumvents issues such as plasmid replication, plasmid stability, plasmid incompatibility, and plasmid copy number variance. This method uses the site-specific integrase from the Streptomyces phage (Φ) C31. The ΦC31 integrase catalyzes a direct recombination between two s...
متن کاملCharacterization of IntA, a bidirectional site-specific recombinase required for conjugative transfer of the symbiotic plasmid of Rhizobium etli CFN42.
Site-specific recombination occurs at short specific sequences, mediated by the cognate recombinases. IntA is a recombinase from Rhizobium etli CFN42 and belongs to the tyrosine recombinase family. It allows cointegration of plasmid p42a and the symbiotic plasmid via site-specific recombination between attachment regions (attA and attD) located in each replicon. Cointegration is needed for conj...
متن کاملTargets for pSAM2 integrase-mediated site-specific integration in the Mycobacterium smegmatis chromosome.
An improved integrative cassette from plasmid pSAM2 has been constructed containing plasmid int and attP genes but excluding the xis gene, which should results in increased stability by suppression of the excision reaction. This cassette was included in both suicide and thermosensitive plasmids and used for integration in Mycobacterium smegmatis. Suicide plasmids containing this cassette integr...
متن کاملRhizobium etli asparaginase II
Bacterial L-asparaginase has been a universal component of therapies for childhood acute lymphoblastic leukemia since the 1970s. Two principal enzymes derived from Escherichia coli and Erwinia chrysanthemi are the only options clinically approved to date. We recently reported a study of recombinant L-asparaginase (AnsA) from Rhizobium etli and described an increasing type of AnsA family members...
متن کاملSite-specific integrase-mediated transgenesis in mice via pronuclear injection.
Microinjection of recombinant DNA into zygotic pronuclei has been widely used for producing transgenic mice. However, with this method, the insertion site, integrity, and copy number of the transgene cannot be controlled. Here, we present an integrase-based approach to produce transgenic mice via pronuclear injection, whereby an intact single-copy transgene can be inserted into predetermined ch...
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ژورنال
عنوان ژورنال: BMC Microbiology
سال: 2016
ISSN: 1471-2180
DOI: 10.1186/s12866-016-0755-y