Packaging specific segments of the Salmonella chromosome with locked-in Mud-P22 prophages.
Packaging specific segments of the Salmonella chromosome with locked-in Mud-P22 prophages.
复制标题
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
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发表时间:
1988
期刊:
影响因子:
3.3
通讯作者:
Elliott,T
中科院分区:
文献类型:
--
作者:
Youderian,P;Sugiono,P;Brewer,KL;Higgins,NP;Elliott,T
Hybrid genetic elements, Mud-P and Mud-Q (collectively, Mud-P22s), have been constructed that carry two-thirds of the temperate Salmonella phage P22 genome sandwiched between the ends of transposon Mu. Insertions of these elements in the Salmonella chromosome generate locked-in P22 prophages that cannot excise. Upon induction (as a consequence of the inactivation of P22 c2 repressor), a locked-in prophage replicates its DNA in situ, resulting in the amplification of neighboring regions of the chromosome and the processive packaging of three contiguous headsful of adjacent DNA in one direction from the P22 packaging site, pac. Phage particles in an induced lysate of a Mud-P22 lysogen contain DNA molecules corresponding to several minutes of chromosomal DNA adjacent to the site of prophage insertion and transduce nearby genetic markers with high efficiencies. Mud-P22 prophages have been introduced into an F' episome by transposition; resident Mud insertions on the Salmonella chromosome may be converted to Mud-P22 insertions by homologous recombination in P22-mediated transductional crosses.
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影响因子:
3.7
作者:
E. van Leerdam;C. Karreman;P. Van de Putte
通讯作者:
P. Van de Putte
影响因子:
3.7
作者:
Marrs,CF;Howe,MM
通讯作者:
Howe,MM
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
B. Roques
通讯作者:
B. Roques
DOI:
10.1073/pnas.68.12.3158
发表时间:
1971-01-01
影响因子:
11.1
作者:
HONG, JS;AMES, BN
通讯作者:
AMES, BN
影响因子:
3.7
作者:
D. Botstein;R. K. Chan;Carol H. Waddell
通讯作者:
Carol H. Waddell