Environmental Analysis Health and Toxicology

The Korean Society of Environmental Health and Toxicology (환경독성보건학회)
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Isolation and Characterization of UV-Inducible Gene UV150 and UV200 in Eukaryotic Cells

진핵세포에서 DNA 상해에 반응하는 유전자 (UV150과 UV200) 기능연구 분리 및 특성 연구

  • Published : 2006.03.01
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Abstract

본 연구는 DNA 상해유도기작을 규명하기 위하여 하등 진핵생물인 분열형 효모 Schizosaccharomyces pombe로부터 subtraction hybridization방법을 이용하여 자외선 유도 유전자인 UV150과 UV200을 분리하고 그 유전자 구조와 발현양상을 조사하였다. 분리한 유전자의 발현양상을 Northern hybridization 방법으로 살펴본 결과 자외선 조사 1시간 후부터 발현이 증가되었다. 또한 알킬화제인 Methyl Methanesulfonate (MMS) 처리에 의해서도 발현이 증가되었다. 이 결과 다른 UV-inducible유전자와는 다르게 분리한 UV150유전자는 UV에 UV200유전자는 MMS에 의하여 발현이 증가됨을 알 수 있었다. 유전자의 기능을 알기 위하여 URA4 유전자를 이용하여 null-mutant 세포주를 제조하여 그 특성을 살펴본 결과 분리한 UV150 유전자는 세포의 성장에 필수적인 유전자임을 알 수 있었다.

Keywords

References

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