Journal of Plant Biotechnology

The Korean Society of Plant Biotechnology (한국식물생명공학회)
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Expression of a Human Histone H1.5 in Transgenic Tobacco Cultured Cells

담배 배양세포에서 인간 히스톤 단백질 H1.5의 발현

  • 김기연 (삼양제넥스 생명공학연구소) ;
  • 권석윤 (한국생명공학연구원 환경생명공학연구실) ;
  • 송재영 (삼양제넥스 생명공학연구소) ;
  • 이행순 (한국생명공학연구원 식물세포공학연구실) ;
  • 곽상수 (한국생명공학연구원 환경생명공학연구실)
  • Published : 2004.06.01
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Abstract

Transgenic tobacco (Nicotiana tabacum L. cv Bright Yellow-2) cell lines expressing a human histone H1.5 (referred to as hH1.5), which suppress collagen-induced rheumatoid arthritis, were developed under the oxidative stress-inducible peroxidase (SWPA2) promoter. Tobacco BY-2 cells were transformed by Agrobacterium-mediated method. The kanamycin-resistant calli were selected on the modified MS medium containing 150mg/L kanamycin and 300mg/L claforan. Transgenic cell lines were confirmed by PCR and northern blot analysis. Recombinant hH1.5 (rhH1.5) protein (42 kDa) was also detected by Western blot analysis, showing a different molecular weight of human hH1.5 (32 kDa). These results suggested that a hH1.5 gene was properly introduced in tobacco cultured cells under the control of SWPA2 promoter. The further characterization of rhH1.5 protein remains to be studied.

Collagen에 의해 유도되는 류마티스 관절염을 저해하는 효과가 있는 인간 histone 단백질 Hl.5 (hHl.5)를 산화스트레스 유도성 SWPA2 프로모터에 연결하여 형질전환 담배(Nicotiana tabacum L. cv Bright Yellow-2) 배양세포주를 개발하였다. hH1.5 유전자는 Agrobacterium 매개 형질전환 방법으로 담배 BY-2 배양세포에 도입되었다. 형질전환 캘러스는 150mg/L kanamycin과 300mg/L claforan이 포함된 변형된 MS 선발배지에서 선발하여, PCR분석으로 hHl.5 유전자의 도입을 확인하였다. 형질전환 현탁배양세포에서 hH1.5 단백질의 발현은 northern 분석과 Western 분석으로 확인하였는데, 담배배양세포에서 재조합hHl.5 단백질 (42 kDa)은 인간의 것 (32 kDa)과는 다른 크기의 단백질이 확인되었다. 금후 재조합 hH1.5 단백질의 자세한 특성규명이 요구된다.

Keywords

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