Site-specific recombination by the integrase MJ1 on mammalian cell

Hye Young Kim, Hyun Yoon Bo, Hyo-Ihl Chang

Research output: Contribution to journalArticle

Abstract

Integrase MJl from the bacteriophage ΦFC1 carries out recombination between two DNA sequences (the phage attachment site, attP and the bacterial attachment site, attB) in NIH3T3 mouse cells. In this study, the integration vector containing attP, attB and the integrase gene MJ, was constructed. The integration mediated by integrase MJ1 in Escherichia coli led to excision of LacZ. Therefore, the frequency of integration was measured by the counting of the white colony, which is detectable on X-Gal plates. The extrachromosomal integration in NIH3T3 mouse cells was monitored by the expression of the green fluorescent protein (GFP) as a reporter. To demonstrate integration mediated integrase MJ1 in NIH3T3 cells, vectors containing attP and attB were co-transfected into NIH3T3 cells. The integration was confirmed by fluorescent microscopy. The expression of GFP was induced in NIH3T3 cells expressing MJ1 without accessory factors. By contrast, the excision mediated by the MJ1 between attR and attL had no effect on the expression of GFP. These results suggest that integrase MJ1 may enable a variety of genomic modifications for research and therapeutic purposes in higher living cells.

Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalKorean Journal of Microbiology and Biotechnology
Volume39
Issue number4
Publication statusPublished - 2011 Dec 1

Fingerprint

Integrases
Genetic Recombination
Microbiological Attachment Sites
Green Fluorescent Proteins
Therapeutic Human Experimentation
Bacteriophages
Microscopy
Escherichia coli
Genes

Keywords

  • ΦFC1
  • attB
  • attP
  • Integrase
  • Site-specific recombination

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology
  • Microbiology

Cite this

Site-specific recombination by the integrase MJ1 on mammalian cell. / Kim, Hye Young; Bo, Hyun Yoon; Chang, Hyo-Ihl.

In: Korean Journal of Microbiology and Biotechnology, Vol. 39, No. 4, 01.12.2011, p. 337-344.

Research output: Contribution to journalArticle

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