Suppr超能文献

鼠伤寒沙门氏菌中一个relA依赖性饥饿诱导位点(sin)的鉴定与特性分析。

Identification and characterization of a relA-dependent starvation-inducible locus (sin) in Salmonella typhimurium.

作者信息

Foster J W

出版信息

J Bacteriol. 1983 Oct;156(1):424-8. doi: 10.1128/jb.156.1.424-428.1983.

Abstract

By use of Mu cts d1(Ap lac) phage, a strain of Salmonella typhimurium was isolated containing a Mu d insertion in a locus (sinA) which is induced during nicotinate, thiamine, purine, amino acid, phosphate, and carbon starvation conditions. Depending on the starvation condition, a 2- to 10-fold increase in beta-galactosidase activity was demonstrated. The sinA locus, which mapped at 32 U, became induced after a decline in growth rate due to starvation. The introduction of relA into the sinA-lac strain prevented induction by nicotinate starvation and partially prevented induction by phosphate starvation. The data suggest that sinA responds to changes in growth rate due to various nutrient starvation conditions and probably responds in part to changes in guanosine tetraphosphate levels.

摘要

利用Mu cts d1(Ap lac)噬菌体,分离出一株鼠伤寒沙门氏菌,该菌株在一个基因座(sinA)中有一个Mu d插入,该基因座在烟酸、硫胺素、嘌呤、氨基酸、磷酸盐和碳饥饿条件下被诱导。根据饥饿条件,β-半乳糖苷酶活性提高了2至10倍。位于32 U处的sinA基因座在因饥饿导致生长速率下降后被诱导。将relA导入sinA-lac菌株可防止烟酸饥饿诱导,并部分防止磷酸盐饥饿诱导。数据表明,sinA对各种营养饥饿条件下生长速率的变化作出反应,并且可能部分地对四磷酸鸟苷水平的变化作出反应。

相似文献

6
Phosphate starvation regulon of Salmonella typhimurium.鼠伤寒沙门氏菌的磷酸盐饥饿调节子
J Bacteriol. 1986 May;166(2):666-9. doi: 10.1128/jb.166.2.666-669.1986.

本文引用的文献

5
Proteins induced by aerobiosis in Escherichia coli.大肠杆菌需氧培养诱导产生的蛋白质。
J Bacteriol. 1983 Apr;154(1):344-50. doi: 10.1128/jb.154.1.344-350.1983.
6
Proteins induced by anaerobiosis in Escherichia coli.大肠杆菌中厌氧诱导产生的蛋白质。
J Bacteriol. 1983 Apr;154(1):336-43. doi: 10.1128/jb.154.1.336-343.1983.
10
Culture medium for enterobacteria.用于肠道细菌的培养基。
J Bacteriol. 1974 Sep;119(3):736-47. doi: 10.1128/jb.119.3.736-747.1974.

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验