The secret life (cycle) of temperate bacteriophages

The secret life (cycle) of temperate bacteriophages
复制标题

温带噬菌体的秘密生命(循环)

DOI:
10.1101/2021.08.25.457636
复制
发表时间:
2021
期刊:
--
影响因子:
--
通讯作者:
Fillol-Salom A
Fillol-Salom A
中科院分区:
--
文献类型:
--
作者:
Fillol-Salom A

文献摘要

参考文献

相似文献

溶原诱导结束了噬菌体与其宿主之间的稳定联系,而进入溶原周期的过渡始于前噬菌体切除,随后是dna复制和包装(ERP)——这是一个被认为对大多数温带噬菌体普遍存在的时间程序。在这里,我们报告了长期存在的ERP程序是实验中青睐的沙门氏菌噬菌体P22 tsc229热诱导突变体的人工产物,而野生型P22实际上遵循复制-包装-切除(RPE)程序。我们发现,与P22 tsc229不同,P22将切除延迟到恰好在它对噬菌体产生有害之前。因此,以最小的代价,P22调整了切除的时间,以平衡繁殖和横向转导,通过基因转移为其宿主的进化提供动力,以实现自我保护。遗传分析提出了温带噬菌体的一个新的生命周期。
Lysogenic induction ends the stable association between a bacteriophage and its host, and the transition to the lytic cycle begins with prophageexcision followed by DNAreplication andpackaging (ERP) – a temporal program that is considered universal for most temperate phages. Here we report that the long-standing ERP program is an artefact of the experimentally favouredSalmonellaphage P22 tsc229heat-inducible mutant, and that wildtype P22 actually follows a replication-packaging-excision (RPE) program. We found that unlike P22 tsc229, P22 delayed excision to just before it was detrimental to phage production. Thus, at minimal expense to itself, P22 has tuned the timing of excision to balance propagation with lateral transduction, powering the evolution of its host through gene transfer in the interest of self-preservation.One Sentence SummaryGenetic analyses propose a new life cycle for temperate bacteriophages.
用锁定的 Mud-P22 前噬菌体包装沙门氏菌染色体的特定片段。
DOI: 10.1093/genetics/118.4.581
发表时间: 1988
期刊: Genetics
影响因子: 3.3
作者:
Youderian,P;Sugiono,P;Brewer,KL;Higgins,NP;Elliott,T
通讯作者: Elliott,T
DOI: 10.1126/science.146.3651.1581
发表时间: 1964-01-01
期刊: SCIENCE
影响因子: 56.9
作者:
LEVINE, M;SMITH, HO
通讯作者: SMITH, HO
DOI: 10.1073/pnas.51.5.775
发表时间: 1964
影响因子: 11.1
作者:
G. Streisinger;R. Edgar;G. Denhardt
通讯作者: G. Denhardt
DOI: 10.1073/pnas.120163297
发表时间: 2000-06-06
影响因子: 11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者: Wanner, BL
DOI: 10.1016/0042-6822(67)90150-x
发表时间: 1967-01-01
期刊: VIROLOGY
影响因子: 3.7
作者:
ISRAEL, V
通讯作者: ISRAEL, V