Françoise S. Howe

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The architectural DNA-binding protein HMGB1 consists of two tandem HMG-box domains joined by a basic linker to a C-terminal acidic tail, which negatively regulates HMGB1-DNA interactions by binding intramolecularly to the DNA-binding faces of both basic HMG boxes. Here we demonstrate, using NMR chemical-shift mapping at different salt concentrations, that(More)
Eukaryotic genomes are pervasively transcribed but until recently this noncoding transcription was considered to be simply noise. Noncoding transcription units overlap with genes and genes overlap other genes, meaning genomes are extensively interleaved. Experimental interventions reveal high degrees of interdependency between these transcription units,(More)
In yeast, many tandemly arranged genes show peak expression in different phases of the metabolic cycle (YMC) or in different carbon sources, indicative of regulation by a bi-modal switch, but it is not clear how these switches are controlled. Using native elongating transcript analysis (NET-seq), we show that transcription itself is a component of bi-modal(More)
Helicase B (RhlB) is one of the five DEAD box RNA-dependent ATPases found in Escherichia coli. Unique among these enzymes, RhlB requires an interaction with the partner protein RNase E for appreciable ATPase and RNA unwinding activities. To explore the basis for this activating effect, we have generated a di-cistronic vector that overexpresses a complex(More)
Genes from yeast to mammals are frequently subject to non-coding transcription of their antisense strand; however the genome-wide role for antisense transcription remains elusive. As transcription influences chromatin structure, we took a genome-wide approach to assess which chromatin features are associated with nascent antisense transcription, and(More)
Tri-methylation of lysine 4 on histone H3 (H3K4me3) is a near-universal chromatin modification at the transcription start site of active genes in eukaryotes from yeast to man and its levels reflect the amount of transcription. Because of this association, H3K4me3 is often described as an 'activating' histone modification and assumed to have an instructive(More)
RNA polymerase II (Pol2) movement through chromatin and the co-transcriptional processing and fate of nascent transcripts is coordinated by transcription elongation factors (TEFs) such as polymerase-associated factor 1 (Paf1), but it is not known whether TEFs have gene-specific functions. Using strand-specific nucleotide resolution techniques, we show that(More)