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P22 antirepressor protein prevents in vivo recA-dependent proteolysis of P22 repressor

✍ Scribed by Prell, H. H. ;Harvey, A. M

Publisher: Springer
Year: 1983
Tongue: English
Weight: 592 KB
Volume: 190
Category: Article
ISSN: 0026-8925
DOI: 10.1007/bf00331072

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✦ Synopsis

A method was developed to demonstrate recA-dependent P22-repressor breakdown in vivo by SDS-polyacrylamide electrophoresis of unfractionated extracts of phage-infected, lysogenic Salmonella typhimurium strains TA1530 rec+ and TA1530 recA1-. The antirepressor of P22 is not cleaved by recA protein. Under conditions of unregulated ant-overproduction (Harvey et al. 1981) antirepressor protects c2-repressor in vivo against proteolytic cleavage by recA protein.

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