Metabolism of pyrithiamine by the pyrithiamine-requiring mutant of <i>Staphylococcus aureus</i>
作者:Asru K. Sinha、G. C. Chatterjee
DOI:10.1042/bj1070165
日期:1968.3.1
1. A mutant strain of Staphylococcus aureus that requires pyrithiamine for its optimum growth was found to utilize pyrithiamine during the exponential phase of growth. 2. Pyrithiamine was deaminated by the organism to form oxypyrithiamine, the reaction being enzymic with no cofactor requirement. 3. On prolonged incubation of S. aureus A cultures, the concentration of deaminating enzyme increased in
1.发现需要吡硫胺以使其最佳生长的金黄色葡萄球菌突变株在生长的指数期期间利用了吡硫胺。2.乙硫胺被生物体脱氨形成氧乙硫胺,反应是酶促的,不需要辅因子。3.长时间培养金黄色葡萄球菌A培养物后,培养液中脱氨酶的浓度增加,可以通过溶剂分离从中分离出巯乙胺脱氨酶。4.氧吡啶硫胺虽然可以抑制金黄色葡萄球菌亲本菌株的生长,但它不是硫胺素的竞争性类似物。然而,该化合物的抑制指数低于巯乙胺。