Enhancer-Promoter Interactions During Development (Yad Ghavi-Helm)

Published: Feb. 10, 2022, 8:01 a.m.

b'In this episode of the Epigenetics Podcast, we caught up with Yad Ghavi-Helm from the Institut de G\\xe9nomique Functionnelle de Lyon to talk about her work on enhancer-promoter interactions during development. \\nThe Laboratory of Yad Ghavi-Helm focuses on how developmental genes are regulated by enhancers. Their work shows that developmental genes are often regulated by more than one enhancer and that those enhancers can often be located many kilobases away on the linear chromosome. Furthermore, their research also indicates that the interactions between promoters and their respective enhancers are usually established before the expression of the target gene is switched on, and that those interactions are generally stable during embryogenesis. In addition, those stable interactions seem to coincide with paused RNA Pol II being located at those promoters before gene activation. \\nReferences\\n\\nGhavi-Helm, Y., Michaut, M., Acker, J., Aude, J.-C., Thuriaux, P., Werner, M., & Soutourina, J. (2008). Genome-wide location analysis reveals a role of TFIIS in RNA polymerase III transcription. Genes & Development, 22(14), 1934\\u20131947. https://doi.org/10.1101/gad.471908\\n\\n\\nGhavi-Helm, Y., Klein, F. A., Pakozdi, T., Ciglar, L., Noordermeer, D., Huber, W., & Furlong, E. E. M. (2014). Enhancer loops appear stable during development and are associated with paused polymerase. Nature, 512(7512), 96\\u2013100. https://doi.org/10.1038/nature13417\\n\\n\\nGhavi-Helm, Y., Jankowski, A., Meiers, S., Viales, R. R., Korbel, J. O., & Furlong, E. E. M. (2019). Highly rearranged chromosomes reveal uncoupling between genome topology and gene expression. Nature Genetics, 51(8), 1272\\u20131282. https://doi.org/10.1038/s41588-019-0462-3\\n\\xa0\\n\\nRelated Episodes\\n\\nUltraconserved Enhancers and Enhancer Redundancy (Diane Dickel)\\n\\n\\nUnraveling Mechanisms of Chromosome Formation (Job Dekker)\\n\\n\\nBiophysical Modeling of 3-D Genome Organization (Leonid Mirny)\\n\\n\\xa0\\nContact\\n\\nActive Motif on Twitter\\n\\n\\nEpigenetics Podcast on Twitter\\n\\n\\nActive Motif on LinkedIn\\n\\n\\nActive Motif on Facebook\\n\\n\\nEmail: podcast@activemotif.com'