Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Karin Ippen-Ihler"'
Autor:
Seema Endley, Pushpa Kathir, Kesmanee Maneewannakul, Jan Manchak, Deanna Moore, Laura S. Frost, Karin Ippen-Ihler
Publikováno v:
Molecular Microbiology. 22:197-205
A derivative of the F plasmid, pOX38-tra715, expresses the entire F tra operon from a foreign promoter (PT7) derived from phage T7. A series of plasmids related to pOX38-tra715 were constructed which carry either deletion mutations or point mutations
Publikováno v:
Journal of Bacteriology. 177:2957-2964
Acetylation of F-pilin subunits has previously been shown to depend upon expression of the F plasmid transfer operon gene traX. To assess the requirement for pilin acetylation in conjugative transfer of F, we constructed traX::kan insertion mutations
Autor:
Deanna Moore, L S Frost, C. M. Hamilton, Yoav Mintz, Kesmanee Maneewannakul, Karin Ippen-Ihler
Publikováno v:
Journal of Bacteriology. 175:1375-1383
The Escherichia coli F plasmid gene required for amino-terminal acetylation of F-pilin subunits was identified. Using Western blots (immunoblots), we assayed the reaction of monoclonal antibodies with F-pilin polypeptides in inner membrane preparatio
Publikováno v:
Journal of Bacteriology. 175:1384-1391
Transfer of the Escherichia coli fertility plasmid, F, is dependent on expression of F pili. Synthesis of F-pilin subunits is known to involve three F plasmid transfer (tra) region products: traA encodes the 13-kDa precursor protein, TraQ permits thi
Publikováno v:
Journal of Molecular Biology. 225:299-311
The product of the F plasmid transfer gene, traN, is thought to be required for the formation of stable mating aggregates during F-directed conjugation. By testing chimeric plasmids that express F transfer region segments for complementation of F lac
Publikováno v:
Journal of bacteriology. 178(13)
F-pilin maturation and translocation result in the cleavage of a 51-amino-acid leader sequence from propilin and require LepB and TraQ but not the SecA-SecY secretion pathway. The unusual propilin leader peptide and the dependence of its cleavage on
Publikováno v:
Plasmid. 31(3)
We describe a set of plasmid vectors that are very useful for cloning, expressing, mutagenizing, deleting, and sequencing DNA fragments. A strategy for using one (pKSM717) to obtain mutant protein products that contain deletions of N-terminal amino a
Publikováno v:
Journal of bacteriology. 175(5)
F plasmid derivatives carrying kan insertion mutations in the transfer region genes traR, trbJ, and trbH were constructed. Standard tests indicated that these loci are not essential for F pilus production or F transfer among Escherichia coli K-12 hos
Autor:
Ronald A. Skurray, Karin Ippen-Ihler
Publikováno v:
Bacterial Conjugation ISBN: 9780306443763
The bacterial conjugation system encoded by the F sex factor was the first to be described and subjected to detailed genetic and molecular analysis (for recent reviews see 88 and 167, and for earlier reviews and articles see Chapter 1 of this volume)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9986059ca933feb958d975bbd8f602f6
https://doi.org/10.1007/978-1-4757-9357-4_2
https://doi.org/10.1007/978-1-4757-9357-4_2
Publikováno v:
Molecular microbiology. 6(20)
We constructed derivatives of the Escherichia coli conjugative plasmid F that carry altered sequences in place of the major transfer operon promoter, PY. Replacement of PY with a promoter-deficient sequence resulted in a transfer-deficient, F-pilus-s