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鼠伤寒沙门氏菌LT2缺乏DNA腺嘌呤甲基化的突变体。

Mutant of Salmonella typhimurium LT2 deficient in DNA adenine methylation.

作者信息

Ritchie L J, Hall R M, Podger D M

出版信息

J Bacteriol. 1986 Jul;167(1):420-2. doi: 10.1128/jb.167.1.420-422.1986.

DOI:10.1128/jb.167.1.420-422.1986
PMID:3522556
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC212898/
Abstract

A mutant of Salmonella typhimurium LT2 deficient in methylation of the adenine residues in the sequence 5'-GATC-3' was isolated. The mutation (dam-1) was linked to the cysG locus, and the properties of the mutant were similar to those of Escherichia coli dam mutants. Reversion of the hisC3076 frameshift marker by 9-aminoacridine was substantially enhanced by the dam-1 mutation, implying a direct role for adenine methylation in the prevention of frameshift mutation induction.

摘要

分离出一株鼠伤寒沙门氏菌LT2突变体,该突变体在5'-GATC-3'序列中的腺嘌呤残基甲基化方面存在缺陷。该突变(dam-1)与cysG基因座连锁,且该突变体的特性与大肠杆菌dam突变体相似。dam-1突变显著增强了9-氨基吖啶对hisC3076移码标记的回复突变作用,这意味着腺嘌呤甲基化在防止移码突变诱导中具有直接作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/be6c/212898/6e9ac8062ae8/jbacter00206-0431-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/be6c/212898/6e9ac8062ae8/jbacter00206-0431-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/be6c/212898/6e9ac8062ae8/jbacter00206-0431-a.jpg

相似文献

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Mutant of Salmonella typhimurium LT2 deficient in DNA adenine methylation.鼠伤寒沙门氏菌LT2缺乏DNA腺嘌呤甲基化的突变体。
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2
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Linkage map of Salmonella typhimurium, edition VII.鼠伤寒沙门氏菌连锁图谱,第七版。

本文引用的文献

1
Escherichia coli mutator mutants deficient in methylation-instructed DNA mismatch correction.缺乏甲基化指导的DNA错配修复的大肠杆菌突变体
Proc Natl Acad Sci U S A. 1980 Feb;77(2):1063-7. doi: 10.1073/pnas.77.2.1063.
2
Induction of SOS functions is not required for recA+-dependent mutagenicity of 9-aminoacridine in Salmonella typhimurium strain trpE8.在鼠伤寒沙门氏菌trpE8菌株中,9-氨基吖啶的recA⁺依赖性致突变性并不需要诱导SOS功能。
Mutat Res. 1984 Mar-Apr;131(3-4):115-21. doi: 10.1016/0167-8817(84)90050-6.
3
The isolation and characterization of the Escherichia coli DNA adenine methylase (dam) gene.
Microbiol Rev. 1988 Dec;52(4):485-532. doi: 10.1128/mr.52.4.485-532.1988.
大肠杆菌DNA腺嘌呤甲基化酶(dam)基因的分离与鉴定。
Nucleic Acids Res. 1983 Feb 11;11(3):837-51. doi: 10.1093/nar/11.3.837.
4
Frameshift mutagenesis of lambda prophage by 9-aminoacridine, proflavin and ICR-191.λ原噬菌体经9-氨基吖啶、原黄素和ICR-191诱导的移码诱变
Mol Gen Genet. 1984;195(3):418-23. doi: 10.1007/BF00341442.
5
Methodologies for the determination of various genetic effects in permeable strains of E. coli K-12 differing in DNA repair capacity. Quantification of DNA adduct formation, experiments with organ homogenates and hepatocytes, and animal-mediated assays.测定DNA修复能力不同的大肠杆菌K-12可渗透菌株中各种遗传效应的方法。DNA加合物形成的定量分析、器官匀浆和肝细胞实验以及动物介导的检测。
Mutat Res. 1984 Feb;125(2):153-84. doi: 10.1016/0027-5107(84)90067-8.
6
Transformation of Salmonella typhimurium by plasmid deoxyribonucleic acid.质粒脱氧核糖核酸对鼠伤寒沙门氏菌的转化
J Bacteriol. 1974 Sep;119(3):1072-4. doi: 10.1128/jb.119.3.1072-1074.1974.
7
Location of DNA methylation genes on the Escherichia coli K-12 genetic map.DNA甲基化基因在大肠杆菌K-12遗传图谱上的位置。
Mol Gen Genet. 1973 Dec 14;127(1):47-55. doi: 10.1007/BF00267782.
8
Evidence that adenine methylation influences DNA-protein interactions in Escherichia coli.腺嘌呤甲基化影响大肠杆菌中DNA-蛋白质相互作用的证据。
J Bacteriol. 1985 Oct;164(1):490-3. doi: 10.1128/jb.164.1.490-493.1985.
9
Methods for detecting carcinogens and mutagens with the Salmonella/mammalian-microsome mutagenicity test.用沙门氏菌/哺乳动物微粒体诱变性试验检测致癌物和诱变剂的方法。
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Mol Gen Genet. 1978 Jul 25;163(3):307-12. doi: 10.1007/BF00271960.