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NTIS 바로가기한국식품과학회지 = Korean journal of food science and technology, v.41 no.5 = no.207, 2009년, pp.592 - 596
김주성 (강원대학교 한방Bio연구소) , 심이성 (서울시립대학교 환경원예학과) , 김명조 (강원대학교 한방Bio연구소)
In this study, we investigated the levels of glutathione (GSH) and its oxidized form (GSSG) in more than 40 kinds of plant materials including seedling plants, grains, vegetables, and processed foods. The glutathione contents in the seedling plants were ranged from 0 to
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핵심어 | 질문 | 논문에서 추출한 답변 |
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글루타치온은 무엇인가? | 글루타치온(gamma-L-glutamyl-L-cysteinyl-glycine)은, 3개의 아미노산, 글루타민산(Glu), 시스테인(Cys), 그리고 글리신(Gly)으로 구성된 트리펩티드로, ATP에 의존한 연속 2단계에 의해 생성이 된다. 첫 단계에서, γ-glutamylcysteine synthetase(E. | |
식물세포에서 글루타치온은 어떤 기능이 있는가? | 게다가, 글루타치온의 SH기는 다양한 유기화합물 및 금속원자들과 효소적 혹은 비효소적으로 결합함으로써, 이들 결합물질의 체외배설과 해독에도 관련되어 있다(5). 식물세포에서 글루타치온은, 유황 신진대사(6),산화환원 상태(redox)의 유지, 광합성 과정에서 발생하는 산화스트레스에 대한 방어(7) 및 생체이물의 해독기능(8) 등이 있다 | |
글루타치온은 ATP에 의존한 연속 2단계에 의해 생성되는데, 각 단계는 어떠한가? | 글루타치온(gamma-L-glutamyl-L-cysteinyl-glycine)은, 3개의 아미노산, 글루타민산(Glu), 시스테인(Cys), 그리고 글리신(Gly)으로 구성된 트리펩티드로, ATP에 의존한 연속 2단계에 의해 생성이 된다. 첫 단계에서, γ-glutamylcysteine synthetase(E.C. 6.3.2.2, γECS)는 글루타민산과 시스테인을 이용하여 디펩티드인 γ-glutamylcysteine을 합성하며, 두번째 단계에서 γ-glutamylcysteine은 GSHsynthetase(E.C. 6.3.2.3, GSHS)에 의해 글리신과 결합하여 글루타치온이 된다. 글루타치온은 인간을 포함한 동·식물(1)은 물론,미생물(2)의 조직 내에 포함되어 있는 비단백질성 SH화합물로 알려져 있다. |
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