Vvedenie novykh posledovatel'nosteǐ DNK v zaranee izbrannye uchatki genoma plazmidy putem obrazovaniia geterodupleksov.

Translated title of the contribution: Introduction of new DNA sequences into previously selected regions of a plasmid genome by means of the formation of heteroduplexes

M. K. Saparbaev, A. V. Mazin, L. P. Ovchinnikova, G. L. Dianov, R. I. Salganik

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A new method for obtaining the recombinant DNA based on heteroduplex-initiated site-directed insertion of alien nucleotide sequences is proposed. To generate a single-stranded region, plasmid DNA was nicked with restriction endonuclease in the presence of ethidium bromide with subsequent exonuclease III controlled digestion. The inserted DNA sequences flanked by nucleotide sequences complementary to single-stranded region were annealed with plasmid DNA and E. coli cells were transformed by the resulting heteroduplex molecules. The presented data show the possibility to insert as many as 200 nucleotides. The yield of recombinant DNA varied from 16 to 0.7% as the number of nucleotides inserted correspondingly varied from 15 to 200. The site of insertion does not depend crucially on the localization of the restriction site used.

Translated title of the contributionIntroduction of new DNA sequences into previously selected regions of a plasmid genome by means of the formation of heteroduplexes
Original languageRussian
Pages (from-to)12-16
Number of pages5
JournalMolekuliarnaia genetika, mikrobiologiia i virusologiia
Issue number2
StatePublished - Feb 1988
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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