Suppr超能文献

噬菌体λ的间接紫外线复活作用。

Indirect ultraviolet-reactivation of phage lambda.

作者信息

George J, Devoret R, Radman M

出版信息

Proc Natl Acad Sci U S A. 1974 Jan;71(1):144-7. doi: 10.1073/pnas.71.1.144.

Abstract

When an F(-) recipient Escherichia coli K12 bacterium receives Hfr or F-lac(+) DNA from an ultraviolet-irradiated donor, its capacity to promote DNA repair and mutagenesis of ultraviolet-damaged phage lambda is substantially increased. We call this phenomenon indirect ultraviolet-reactivation, since its features are essentially the same as those of ultraviolet-reactivation; this repair process occurs in pyrimidine dimer excision-deficient strains and produces clear plaque mutations of the restored phage. Moreover, this process is similar to indirect ultraviolet-induction of prophage lambda, since it is promoted by conjugation. However, contrarily to indirect induction, it is produced by Hfr donors and occurs in recipients restricting the incoming ultraviolet-damaged donor DNA. The occurrence of indirect ultraviolet-reactivation provides evidence for the existence in E. coli of an inducible error-prone mechanism for the repair of DNA.

摘要

当一个F(-)受体大肠杆菌K12细菌从经紫外线照射的供体接收Hfr或F-lac(+) DNA时,其促进紫外线损伤的噬菌体λ的DNA修复和诱变的能力会大幅提高。我们将此现象称为间接紫外线复活,因为其特征与紫外线复活基本相同;这种修复过程发生在嘧啶二聚体切除缺陷型菌株中,并产生恢复噬菌体的清晰噬菌斑突变。此外,此过程类似于噬菌体λ的间接紫外线诱导,因为它是由接合作用促进的。然而,与间接诱导相反,它是由Hfr供体产生的,并且发生在限制进入的紫外线损伤供体DNA的受体中。间接紫外线复活的发生为大肠杆菌中存在一种可诱导的易错DNA修复机制提供了证据。

相似文献

1
Indirect ultraviolet-reactivation of phage lambda.噬菌体λ的间接紫外线复活作用。
Proc Natl Acad Sci U S A. 1974 Jan;71(1):144-7. doi: 10.1073/pnas.71.1.144.
2
Recovery of phage lambda from ultraviolet damage.从紫外线损伤中恢复噬菌体λ。
Basic Life Sci. 1975;5A:155-71. doi: 10.1007/978-1-4684-2895-7_20.
7
Damaged-site independent mutagenesis of phage lambda produced by inducible error-prone repair.
Biochimie. 1982 Aug-Sep;64(8-9):789-96. doi: 10.1016/s0300-9084(82)80130-2.

引用本文的文献

2
The Ultimate (Mis)match: When DNA Meets RNA.终极(误)配:当 DNA 遇见 RNA.
Cells. 2021 Jun 8;10(6):1433. doi: 10.3390/cells10061433.
3
The SOS Regulatory Network.SOS调控网络。
EcoSal Plus. 2008 Jul 25;2008. doi: 10.1128/ecosalplus.5.4.3.

本文引用的文献

2
Induction of Mutations in a Bacterial Virus.细菌病毒中突变的诱导
Proc Natl Acad Sci U S A. 1953 Jul;39(7):628-36. doi: 10.1073/pnas.39.7.628.
6
Comment on the relationship between UV reactivation and host-cell reactivation in phage.
Virology. 1966 Jul;29(3):494. doi: 10.1016/0042-6822(66)90226-1.

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