梭菌正丁醇代谢工程研究进展 |
闻志强, 孙小曼, 汪庆卓, 李亚楠, 刘文正, 蒋宇, 杨晟 |
Recent advances in metabolic engineering of clostridia for n-butanol production |
WEN Zhiqiang, SUN Xiaoman, WANG Qingzhuo, LI Yanan, LIU Wenzheng, JIANG Yu, YANG Sheng |
图3 梭菌正丁醇合成途径代谢工程改造 (图中所示基因表达的酶:pfk—6-磷酸果糖激酶;fba—果糖-二磷酸醛缩酶;pyk—丙酮酸激酶;ilvB—乙酰乳酸合酶;aldc—乙酰乳酸脱羧酶;acr—乙偶姻还原酶;pfor—丙酮酸-铁氧还蛋白氧化酶;hyd—氢酶;pta—乙酰基磷酸转移酶;ack—乙酸激酶;thl—硫解酶;hbd—3-羟基丁酰CoA脱氢酶;crt—巴豆酸酶;bcd—丁酰CoA脱氢酶;ter—反式烯酰辅酶A还原酶;ptb—磷酸丁酰转移酶;buk—丁酸激酶;ctfAB—乙酰乙酰CoA:乙酸/丁酸:CoA转移酶;adc—乙酰乙酸脱羧酶;sadh—异丙醇脱氢酶;adh—乙醇脱氢酶;bdh/edh—丁醇/乙醇脱氢酶;adhE—醇/醛脱氢酶) |
Fig. 3 Metabolic engineering of clostridia (pfk—6-phosphofructokinase; fba—fructose-bisphosphate aldolase; pyk—pyruvate kinase; ilvB—acetolactate synthase; aldc—acetolactate decarboxylase; acr—acetoin reductase; pfor—pyruvate-ferredoxin oxidoreductase; hyd—hydrogenase; pta—phosphate acyltransferase; ack—acetate kinase; thl—thiolase; hbd—3-hydroxybutyryl-CoA dehydrogenase; crt—crotonase; bcd—butyryl-CoA dehydrogenase; ter—trans-enoyl-CoA reductase; ptb—phosphobutyryl transferase; buk—butyrate kinase; ctfAB—acetoacetyl-CoA: acetate/butyrate: CoA transferase; adc—acetoacetate decarboxylase; sadh—isopropanol dehydrogenase; adh/edh—alcohol/ehanol dehydrogenase; bdh/edh—butanol/ehanol dehydrogenase; adhE—alcohol/aldehyde dehydrogenase) |
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