[大肠杆菌K-12中接合作用的机制。IV.基因dnaB突变表型抑制条件下的接合作用]

[Mechanism of conjugation in Escherichia coli K-12. IV. Conjugation in conditions of phenotypic suppression of gene dnaB mutation].

作者信息

Lantsov V A, Likhachev V T

出版信息

Genetika. 1975;11(8):104-7.

Abstract

The thermosensitive mutation BT43 in the gene dnaB is a missence mutation affecting the vegetative and conjugational DNA synthesis. By means of the increase of ionic strength (NaCl concentration) in the medium the functional activity of the dnaB product is partially restored in non-permissive conditions. In these conditions a rescue of recombinant yield is observed. But the mechanism of recombination is switched from one-stranded to double-stranded. This is demonstrated by the alteration of the degree of linkage of genetically close markers.

摘要

基因dnaB中的热敏突变BT43是一种错义突变，影响营养期和接合期的DNA合成。通过增加培养基中的离子强度（NaCl浓度），在非允许条件下，dnaB产物的功能活性可部分恢复。在这些条件下，可观察到重组产量的挽救。但重组机制从单链转变为双链。这通过遗传紧密标记的连锁程度的改变得以证明。

相似文献

1

[Mechanism of conjugation in Escherichia coli K-12. IV. Conjugation in conditions of phenotypic suppression of gene dnaB mutation].[大肠杆菌K-12中接合作用的机制。IV.基因dnaB突变表型抑制条件下的接合作用]

Genetika. 1975;11(8):104-7.

2

[Mechanism of genetic recombination during bacterial recombination. VI. Single-stranded conjugation].[细菌重组过程中的基因重组机制。VI. 单链接合]

Genetika. 1976;12(9):61-70.

3

Mechanism of conjugation and recombination in bacteria. XXI. Role of F factor genes in post-conjugational recombination in Escherichia coli K-12.细菌中接合与重组的机制。二十一。F 因子基因在大肠杆菌 K-12 接合后重组中的作用。

Acta Microbiol Pol. 1984;33(1):11-24.

4

Mechanism of conjugation. I. Isolation of new mutants with temperature sensitive DNA synthesis.接合作用机制。I. 分离具有温度敏感型DNA合成能力的新突变体。

Acta Microbiol Pol. 1978;27(4):403-5.

5

Mechanism of conjugation and recombination in bacteria. XV. Structure of the transferred donor DNA during conjugation in Escherichia coli K-12.细菌中接合与重组的机制。十五、大肠杆菌K-12接合过程中转移的供体DNA的结构

Acta Microbiol Pol A. 1974;6(3):205-16.

6

The role of DNA synthesis in the formation of post-conjugational recombinant structure in Escherichia coli K-12.DNA合成在大肠杆菌K-12中接合后重组结构形成中的作用。

Bull Acad Pol Sci Biol. 1972;20(9):627-34.

7

[Single-stranded conjugation in Escherichia coli K-12: characteristics of the formation of a heterogenous progeny].[大肠杆菌K-12中的单链结合：异质后代形成的特征]

Genetika. 1977;13(7):1246-51.

8

Restoration of F' superinfection inhibition in a DnaB mutant of Escherichia coli upon construction of heterozygous DnaB merodiploids or P1 lysogens carrying a dnaB analogue.在构建携带dnaB类似物的杂合DnaB部分二倍体或P1溶原菌后，大肠杆菌DnaB突变体中F'超感染抑制的恢复。

J Bacteriol. 1975 Jul;123(1):147-53. doi: 10.1128/jb.123.1.147-153.1975.

9

[Deletions of plasmid pRP3.1ts12 derived from RP1 leading to the suppression of the thermosensitive ts12 mutation and mucoid phenotype induction in Escherichia coli K-12].[源自RP1的质粒pRP3.1ts12的缺失导致大肠杆菌K-12中热敏ts12突变的抑制和黏液样表型诱导]

Genetika. 1984 Mar;20(3):373-81.

10

[Genetic analysis of the Mud mutants of Escherichia coli K-12 with an impaired ability to maintain bacteriophage Mu development].[对维持噬菌体Mu发育能力受损的大肠杆菌K-12 Mud突变体的遗传分析]

Genetika. 1984 Jun;20(6):924-32.

引用本文的文献

1

Single-stranded conjugation in Escherichia coli K-12.大肠杆菌K-12中的单链共轭作用。

Mol Gen Genet. 1980 Feb;177(3):519-25. doi: 10.1007/BF00271492.

文献AI研究员

20分钟写一篇综述，助力文献阅读效率提升50倍。

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

文档翻译

学术文献翻译模型，支持多种主流文档格式。