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Integrative suppression of dnaA46 by broad host-range plasmid R1162 (1988)

Brasch, Michael A. ; Meyer, Richard J.

Springer

Molecular genetics and genomics 215 (1988), S. 139-145

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ISSN: 1617-4623

Keywords: R1162 ; dnaA ; Integrative suppression

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Summary Replication of plasmid R1162 DNA does not require the product of the dnaA gene. An integrated copy of the plasmid can suppress the temperature-sensitive dnaA46 allele when (1) additional plasmid copies are present in the cytoplasm and (2) an inactive replication origin, generated by deletion, is also present in the chromosome. We propose that the inactive origin sets the rate of initiation of chromosome replication at a level compatible with cell viability, possibly by providing additional binding sites for an R1162-encoded protein that is rate-limiting for plasmid replication.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00331315

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