| Literature DB >> 17965208 |
Michelle Cronin1, Moritz Knobel, Mary O'Connell-Motherway, Gerald F Fitzgerald, Douwe van Sinderen.
Abstract
The 2.1-kb cryptic plasmid pCIBAO89 from Bifidobacterium asteroides harbors a 1.4-kb segment which is sufficient for its autonomous replication. The segment is divided into two parts, the presumed replication origin, ori89, and the rep gene encoding the putative 41-kDa Rep89 replication initiation protein. This minimal replication region of pCIBAO89 was functionally dissected by transcriptional analyses as well as by DNA-binding studies, and the information obtained was exploited to create a number of Escherichia coli-Bifidobacterium shuttle vectors capable of transforming various bifidobacteria with an efficiency of up to 10(6) transformants/mug DNA.Entities:
Mesh:
Substances:
Year: 2007 PMID: 17965208 PMCID: PMC2168138 DOI: 10.1128/AEM.01630-07
Source DB: PubMed Journal: Appl Environ Microbiol ISSN: 0099-2240 Impact factor: 4.792