Currently, recombinational cloning procedures based upon methods developed for yeast, Saccharomyces cerevisiae, are being exploited for targeted cloning and in-vivo modification of genomic clones. In this review, we will discuss the development of large-insert vectors, homologous recombination-based techniques for cloning and modification, and their application towards functional analysis of genes using transgenic mouse model systems.
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The concept of natural genome reconstruction.Part 1. Basic provisions of the "natural genome reconstruction" concept. Changing the genome of hematopoietic stem cells using several natural cellular mechanisms that are inherent in the hematopoietic cell and determine its biological status as "the source of the body's reparative potential".
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We present a series of articles proving the existence of a previously unknown mechanism of interaction between hematopoietic stem cells and extracellular double-stranded DNA (and, in particular, double-stranded DNA of the peripheral bloodstream), which explains the possibility of emergence and fixation of genetic information contained in double-stranded DNA of extracellular origin in hematopoietic stem cells. The concept of the possibility of stochastic or targeted changes in the genome of hematopoietic stem cells is formulated based on the discovery of new, previously unknown biological properties of poorly differentiated hematopoietic precursors. The main provisions of the concept are as follows.
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