Calvo J M, Goodman M, Salgo M, Capes N
J Bacteriol. 1971 Apr;106(1):286-8. doi: 10.1128/jb.106.1.286-288.1971.
Strain leu-4017, derived from Salmonella typhimurium LT2, cannot utilize acetate, pyruvate, or citric acid cycle intermediates as sole sources of carbon. The mutation in this strain extends from the A cistron of the leucine operon to some point between leu and azi, presumably deleting one or more loci involved in the utilization of these compounds. One of these loci is required for phosphoenolpyruvate synthase activity.
源自鼠伤寒沙门氏菌LT2的leu - 4017菌株不能利用乙酸盐、丙酮酸或柠檬酸循环中间产物作为唯一碳源。该菌株中的突变从亮氨酸操纵子的A顺反子延伸到leu和azi之间的某个位置,推测删除了一个或多个参与这些化合物利用的基因座。这些基因座之一是磷酸烯醇丙酮酸合酶活性所必需的。