نتایج جستجو برای: cloning vector
تعداد نتایج: 249528 فیلتر نتایج به سال:
A host-vector system for Pseudomonas aeruginosa PAO was developed. Scattered regions of the strain PAO chromosome were cloned by direct selection for complementation of auxotrophs or from a DNA gene bank which contains over 1,000 independently isolated chromosome-vector recombinant plasmids. The use of partially digested chromosomal DNA facilitated the selection of a variety of strain PAO chrom...
BACKGROUND Tuberculosis (TB) is a major cause of death worldwide. Finding an effective vaccine against TB is the best way to control it. Several vaccines against this disease have been developed but none are completely protective. The aim of this study was to design and construct a cloning vector containing the Mycobacterium tuberculosis (M. tuberculosis) heat shock protein X (hspX). METHODS ...
The method uses a novel plasmid vector, p9lox5, containing a site-specific recombination sequence lox from the lox/Cre recombinase system of bacteriophage P1. There are two distinct stages. Firstly, vector and fragment DNAs are ligated intermolecularly under conditions of macromolecular crowding (15% polyethylene glycol 6000) which accelerate blunt-end joining a thousandfold. Secondly, circular...
Rapid construction of high-resolution physical maps requires accurate information about overlap between DNA clones and the size of gaps between clones or clone contigs. We recently developed a procedure termed 'quantitative DNA fiber mapping' (QDFM) to help construct physical maps by measuring the overlap between clones or the physical distance between non-overlapping contigs. QDFM is based on ...
The in vitro cloning of DNA molecules traditionally uses PCR amplification or site-specific restriction endonucleases to generate linear DNA inserts with defined termini and requires DNA ligase to covalently join those inserts to vectors with the corresponding ends. We have used the properties of Vaccinia DNA topoisomerase I to develop a ligase-free technology for the covalent joining of DNA fr...
A method based on one class support vector machine (OCSVM) is proposed for class incremental learning. Several OCSVM models divide the input space into several parts. Then, the 1VS1 classifiers are constructed for the confuse part by using the support vectors. During the class incremental learning process, the OCSVM of the new class is trained at first. Then the support vectors of the old class...
A protoplast transformation system has been developed for Corynebacterium glutamicum by using a C. glutamicum-Bacillus subtilis chimeric vector. The chimera was constructed by joining a 3.0-kilobase cryptic C. glutamicum plasmid and the B. subtilis plasmid pBD10. The neomycin resistance gene on the chimera, pHY416, was expressed in C. glutamicum, although the chloramphenicol resistance gene was...
BACKGROUND Tagging proteins is a standard method facilitating protein detection, purification or targeting. When tagging a certain protein of interest, it is challenging to predict which tag will give optimal results and will not interfere with protein folding, activity or yields. Ideally, multiple tags and positions are tested which however complicates molecular cloning and expression vector g...
Background: The aim of this study was to construct a recombinant vector of human sperm specific VDAC3 gene for production of VDAC3 antibody, which is potential as male contraception vaccine. Methods: Target fragment sequence of VDAC3 gene was obtained through amplification of human sperm VDAC3 cDNA with primers covering exon 5 to exon 8. Its PCR product in size of 435 bp was cloned to the pET10...
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