Environmental Analysis Health and Toxicology

The Korean Society of Environmental Health and Toxicology (환경독성보건학회)
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Overexpressed HRD3 Protein Required for Excision Repair of Schizosaccharomyces pombe is Toxic to the Host Cell

효모에서 절제회복에 관여하는 HRD3 유전자 과 발현이 숙주세포에 미치는 영향

  • Published : 2003.12.01
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Abstract

출아형 효모 Saccharomyces cerevisiae RAD3 유전자는 절제회복 및 세포의 생존에 필수적이며, DNA dependent ATPase와 DNA-RNA helicase활성을 가지고 있는 것으로 알려져 있다. 본 연구는 분열형 효모 Schizosaccharomyces pombe에서 절제회복과 세포의 생존에 필수적인 출아형 효모 RADS유전자와 유사한 유전자를 S. pombe genomic DNA library에서 분리하여 그 특성을 연구하였다. 분리한 RADS 유사유전자를 HRD3 유전자라 명명하였다. 발현 vector pET3a를 이용하여 분리한 HRD3 유전자를 과 발현하였을 때 HRD3단백질은 숙주단백질의 합성 억제 또는 분해 촉진을 유발하여 숙주세포인 대장균에 독성 효과를 나타냄이 관찰되었다. HRD3유전자와 lacZ유전자를 융합시킨 여러 가지 재조합 vector를 만들어 이들 융합단백질을 분리하였다. 이 결과 HRD3단백질의 카르복실 말단 부위가 DNA회복기능과 대장균에서의 독성효과를 나타내는 중요한 부위로 생각된다.

Keywords

References

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