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Literature DB >> 374992

Cis- and trans-activity of P22 antirepressor protein against c-repression specified by the closely related Salmonella phages L and Px1.

Abstract

The ant products of Salmonella phage P22, synthesized by its immI region, releases when acting in cis replication inhibition for phages P22 and L. When ant product acts trans on a coinfecting immunity sensitive phage (Thomas-Bertani-experiment as test for release of replication inhibition) full replication ensues only if both superinfecting phages are homologous in the specificities of their immC and immI regions. If these regions are heterologous, differing in immC, immI or in both, the replication of the phage expected to be complemented by ant is inhibited. This inhibition is observed in both L- and Px-lysogenic bacteria and can be released in case of ant- amber phage by action of ant in cis in su+ lysogenic bacteria.

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Year: 1979 PMID： 374992 DOI： 10.1007/bf00271503

Source DB: PubMed Journal: Mol Gen Genet ISSN： 0026-8925

20 in total

7. Px, a hybrid between the serologically unrelated and heteroimmune Salmonella bacteriophages P22 and Py. II. Contribution of P22 genetic material to different Px variants.

Authors: H H Prell
Journal: Mol Gen Genet Date: 1970

8. Px, a hybrid between the serologically unrelated and heteroimmune Salmonella bacteriophages P22 and Py. I. Some properties of Py and Px, genetic evidence for the hybrid nature of Px, and phenotypic mixing between P22, Py and Px.

Authors: H H Prell
Journal: Mol Gen Genet Date: 1970

Cis- and trans-activity of P22 antirepressor protein against c-repression specified by the closely related Salmonella phages L and Px1.

1. Dual control of lysogeny by bacteriophage P22: an antirepressor locus and its controlling elements.

2. ON THE CONTROL OF THE REPLICATION OF TEMPERATE BACTERIOPHAGES SUPERINFECTING IMMUNE HOSTS.

3. Effect of mitomycin C on interactions between temperate phages and bacteria.

4. Specificity of genetic elements controlling regulation of early functions in temperate bacteriophages.

5. The role of ant-product of Salmonella phage P22 in the process of transactivation of prophage Px1 genes.

6. Regulation of gene expression in Salmonella phage P22. I. Genetic experiments involving P22 and Px1.

7. Px, a hybrid between the serologically unrelated and heteroimmune Salmonella bacteriophages P22 and Py. II. Contribution of P22 genetic material to different Px variants.

8. Px, a hybrid between the serologically unrelated and heteroimmune Salmonella bacteriophages P22 and Py. I. Some properties of Py and Px, genetic evidence for the hybrid nature of Px, and phenotypic mixing between P22, Py and Px.

9. A phage P22 gene controlling integration of prophage.

10. Second locus of bacteriophage P22 necessary for the maintenance of lysogeny.

1. Repression of ant synthesis early in the lytic cycle of phage P22.

2. Ant-mediated inactivation of Salmonella phage L-specified repression at OR of prophage L.