Results 321 to 330 of about 1,055,290 (365)

Formation of lambda lysogens by IS2 recombination: gal operon-lambda pR promoter fusions

Virology, 1979
Abstract When Escherichia coli carrying an IS2 element in the gal operon are infected with lambda which also carry an IS2 element, some lysogens are formed by recombination between the two insertion elements. The resulting prophage are abnormally permuted. Whereas normal prophages are bracketed by two attachment sites, the abnormal prophages carry an
O, Reyes, M, Gottesman, S, Adhya
openaire   +2 more sources

Interplay Between DnaA and SeqA Proteins During Regulation of Bacteriophage λ pR Promoter Activity

Journal of Molecular Biology, 2003
DnaA and SeqA proteins are main regulators (positive and negative, respectively) of the chromosome replication in Escherichia coli. Nevertheless, both these replication regulators were found recently to be also transcription factors. Interestingly, both DnaA and SeqA control activity of the bacteriophage lambdap(R) promoter by binding downstream of the
Monika, Słomińska, Grazyna, Konopa, Sylwia, Barańska, Grzegorz, Wegrzyn, Alicja, Wegrzyn   +4 more
openaire   +2 more sources

Differential binding of RNA polymerase to the pRM and pR promoters of bacteriophage lambda

Gene, 1983
Escherichia coli RNA polymerase binding to the promoters pR and pRM of bacteriophage lambda was visualized and quantitated by electron microscopy. Although the two promoters are located close together in the phage genome, their proximity to the end of an 889-bp HaeIII DNA fragment made it possible to position binary complexes within 18 bp (2 ...
E M, Owens, G N, Gussin
openaire   +2 more sources

Progesterone Receptor (PR) Promoter Methylation – Role as a Predictive and Prognostic Marker in Breast Cancer.

Cancer Research, 2009
Abstract Estrogen receptor α expression is a well known and clinically utilized predictor of endocrine treatment response. In addition, loss of expression of the progesterone receptor (PR), an estrogen induced gene, has been shown to be associated with resistance to endocrine therapy.
T. Pathiraja, J. Jelinek, R. He, P. Shetty, R. Hartmaier, A. Margossian, S. Hilsenbeck, J. Issa, S. Oesterreich   +8 more
openaire   +1 more source

The Effect of Taekwondo Demonstration Team PR characteristics using SNS on University Image and University Preference

The World Society of Taekwondo Culture, 2022
The purpose of this study was to investigate the effect of taekwondo demonstration group promotion activities through SNS on improving university image and university preference for prospective freshmen.
Seungjin Lee, Beob-Sun Lee, T. Jung
semanticscholar   +1 more source

Does PR promote political extremism? A rejoinder

Representation, 2004
(2004). Does PR promote political extremism? A rejoinder. Representation: Vol. 41, No. 1, pp. 63-66.
openaire   +1 more source

Modulation of PRM Activity by the Lambda PR Promoter in Both the Presence and Absence of Repressor

Journal of Molecular Biology, 1993
When the transcription startsites of the phage lambda promoters PRM and PR are separated by 82 bp (the wild-type spacing), mutating PR increases the rate of open complex formation at PRM at all RNA polymerase (RNAP) concentrations tested in vitro. This is reflected in a fourfold increase in kappa f (the rate constant for isomerization of closed to open
R S, Fong, S, Woody, G N, Gussin
openaire   +2 more sources

Direct and Indirect Effects of Mutations in λ PRM on Open Complex Formation at the Divergent PR Promoter

Journal of Molecular Biology, 1994
A detailed kinetic analysis demonstrates that, in vitro, mutations in the PRM promoter of bacteriophage lambda can increase the rate of open complex formation at the divergent, lytic promoter PR in either of two ways. (1) PRM- mutations, typified by PRMKM11, indirectly stimulate PR by eliminating interference from RNA polymerase (RNAP) molecules bound ...
R S, Fong, S, Woody, G N, Gussin
openaire   +2 more sources

Host Vector System with the PR, Promoter of Phage Lambda

1985
The early promoters of bacteriophage lambda (PL and PR) are are widely used to regulate expression of inserted genes. Despite the fact that the PR, promoter is the strongest transcription start site of phage lambda (1), vector molecules with this promoter for expression of foreign genes have not yet been constructed.
N. I. Matvienko, I. N. Troyanovskaya, L. A. Zheleznaya, O. B. Yarchuk   +3 more
openaire   +1 more source

Expression of immunogenically reactive diphtheria toxin fusion proteins under the control of the pR promoter of bacteriophage lambda

Gene, 1986
The tox228 gene encoding the non-toxic, immunologically cross-reactive CRM228 mutant diphtheria toxin (DT) has been cloned downstream of the PR promoter and the cro translational initiation region of bacteriophage lambda carried by plasmid pCQV2 (Queen, 1983). Efficient transcription but no appreciable amount of a translational product corresponding to
G, Zettlmeissl, M, Kaczorek, M, Moya, R E, Streeck   +3 more
openaire   +2 more sources