蘇糖核酸

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蘇糖核酸英语:Threose nucleic acid,缩写:TNA)是一種與DNA和RNA相似的化學物質,但組成物有所不同。地球上已知生物並未發現體內有此物質。


TNA的骨架是由重複排列的蘇糖(threose)單位,經由磷酸酯鍵連結而成。在實驗室中,可利用DNA聚合酶合成出DNA與TNA的混合長鏈。



外部連結



  • Was simple TNA the first nucleic acid on Earth to carry a genetic code? - New scientist


  • ORIGIN OF LIFE: A Simpler Nucleic Acid - Leslie Orgel


參考文獻



  • Orgel, Leslie. A Simpler Nucleic Acid. Science. Nov 2000, 290 (5495): 1306 – 1307. doi:10.1126/science.290.5495.1306. 


  • Watt, Gregory. Modified nucleic acids on display. Nature Chemical Biology. Feb 2005. doi:10.1038/nchembio005. 


  • Schoning, K; Scholz P; Guntha S; Wu X; Krishnamurthy R; Eschenmoser A. Chemical etiology of nucleic acid structure: the alpha-threofuranosyl-(3'->2') oligonucleotide system.. Science. Nov 2000. PMID 11082060.  引文使用过时参数coauthors (帮助)

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