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Methyluridine was enzymatically produced from guanosine and thymine by intact cells of Brevibacterium acetylicum QD9805. 用乙醯短桿菌完整細(xì)胞爲(wèi)酶源，以鳥苷和胸腺嘧啶爲(wèi)底物，酶法郃成5-甲基尿苷。