Browsing by Author "Chen Yu-Pei"
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Item type:Item, BIOLOGICAL COMPOSITE AND METHOD FOR REDUCING H2S(2013-05-09) ;TSENG Ching-PingChen Yu-PeiA biological composite and method for reducing H2S are disclosed. The biological composite for reducing H2S includes a carrier and Thermus sp. immobilized on the carrier. Therefore, if a sample containing H2S has contact with Thermus sp. or the carrier with Thermus sp. immobilized thereon, the amount of H2S can be reduced.Item type:Item, Biological composite and method for reducing H2S(2014-07-15) ;Tseng Ching-PingChen Yu-PeiA biological composite and method for reducing H2S are disclosed. The biological composite for reducing H2S includes a carrier and Thermus sp. immobilized on the carrier. Therefore, if a sample containing H2S has contact with Thermus sp. or the carrier with Thermus sp. immobilized thereon, the amount of H2S can be reduced.Item type:Item, 紅麴菌膽固醇抑制劑(Monacolin K)之轉錄調控基因(MokH)研究(2012) ;陳煜沛 ;Chen Yu-Pei國立交通大學生物科技學系(所)過去我們的研究發現紅麴菌的膽固醇抑制劑MonacolinK生合成基因群全長約為42kb,包含有9個基因,命名為mokA—mokI,其與已知的土黴菌(Aspergillusterreus)具有54%以上的相似度,其中mokH基因為一轉錄因子,含有典型的胱氨酸鋅指區域,如同其他真菌調控因子AflR,Ctb8,Gal4與Lac9,當mokH基因於紅麴菌中過量表現,其轉型株的MonacolinK產量及相關合成基因的RNA表現皆高於野生株,此結果說明mokH基因參與MonacolinK之生合成,推測其會與啟動子區域的DNA鍵結進而調控下游MonacolinK基因表現(Chen et al.,2010)。目前我們已在大腸桿菌中成功表現出MokH蛋白(見圖五),初步利用EMSA分析亦證實MokH蛋白會與MonacolinK基因(mokA)啟動子區域進行鍵結(見圖六)。 本研究計畫為兩年期計畫,第一年將鑑別出MokH轉錄因子對Monacolin K共九個基因的鍵結保留區域,之後我們會將此鍵結序列針對紅麴菌全基因體啟動子區域進行比對,將更了解紅麴基因的調控機制。第二年利用次世代定序方式(Next generation sequencing - targetresequencing)分析不同紅麴菌的膽固醇抑制劑生合成基因,鑑別在不同紅麴菌種是否也包含有相同鍵結序列,進一步將MokH異源表現於土黴菌(A. terreus)及不同紅麴菌種,預期結果將對紅麴菌在生產膽固醇抑制劑的調控機制有更精確掌握,同時可獲得高產量膽固醇抑制劑轉型株,對後續紅麴菌膽固醇抑制劑之基因調控機制的研究,可提供更多資訊與了解。