Transcription terminates at lambda tR1 in three clusters.

Saccharomyces cerevisiae RNA polymerase I terminates transcription at the Reb1 terminator in vivo.

We have mapped transcription termination sites for RNA polymerase I in the yeast Saccharomyces cerevisiae. S1 nuclease mapping shows that the primary terminator is the Reb1p terminator located at +93 downstream of the 3' end of 25S rRNA. Reverse transcription coupled with quantitative PCR shows that approximately 90% of all transcripts terminate at this site. Transcripts which read through the ...

Escherichia coli RNA polymerase terminates transcription efficiently at rho-independent terminators on single-stranded DNA templates.

Several models have been proposed for the mechanism of transcript termination by Escherichia coli RNA polymerase at rho-independent terminators. Yager and von Hippel (Yager, T. D. & von Hippel, P. H. (1991) Biochemistry 30, 1097-118) postulated that the transcription complex is stabilized by enzyme-nucleic acid interactions and the favorable free energy of a 12-bp RNA-DNA hybrid but is destabil...

Detection of high risk campylobacteriosis clusters at three geographic levels.

Campylobacteriosis is a leading cause of bacterial gastroenteritis in the United States and many other developed countries. Understanding the spatial distribution of this disease and identifying high-risk areas is vital to focus resources for prevention and control measures. In addition, determining the appropriate scale for geographical analysis of surveillance data is an area of concern to ep...

Transcription termination and late control in phage lambda.

A transcription termination site occurs between the promoter for late gene expression of bacteriophage lambda and the late genes themselves. It is proposed that the lambda Q gene product controls late gene expression by over-coming this termination barrier.

Lambda Polarization Measured at Hermes and Lambda Spin Structure