Coleman W G, Williams L S
J Bacteriol. 1974 Oct;120(1):390-3. doi: 10.1128/jb.120.1.390-393.1974.
The regulation of formation of histidyl-transfer ribonucleic acid (tRNA) synthetase was examined in strains of Salmonella typhimurium. When the first of the histidine-forming enzymes was wild type, the presence of 2-thiazolealanine in the growth medium prevented repression of histidyl-tRNA synthetase formation elicited by the addition of 1, 2, 4-triazole-3-alanine to these cultures. Conversely, thiazolealanine had no effect on repression of histidyl-tRNA synthetase formation by triazolealanine in hisG mutant strains. These data suggest a relationship between the control of histidyl-tRNA synthetase formation and the functional state of the histidine operon.
在鼠伤寒沙门氏菌菌株中研究了组氨酰 - 转移核糖核酸(tRNA)合成酶形成的调控。当第一个组氨酸形成酶为野生型时,生长培养基中2 - 噻唑丙氨酸的存在可阻止因向这些培养物中添加1,2,4 - 三唑 - 3 - 丙氨酸而引发的组氨酰 - tRNA合成酶形成的阻遏。相反,在hisG突变菌株中,噻唑丙氨酸对三唑丙氨酸对组氨酰 - tRNA合成酶形成的阻遏没有影响。这些数据表明组氨酰 - tRNA合成酶形成的控制与组氨酸操纵子的功能状态之间存在关联。