Epigenetics Podcast12 Aug 2019

The Interchromatin Network Model (Ana Pombo)

In this Episode of the Epigenetics Podcast our guest Ana Pombo from the Max-Delbrück-Center in Berlin provides insight in her work on the interplay between gene regulation and genome architecture. To do so she and her team use different state of the art methods, including cryo-sectioning to unravel this regulatory network. In 2006, they proposed the Interchromatin Network Model of chromosome organization which postulates that chromosome folding is driven by contacts between different genomic regions and between chromatin and nuclear landmarks, such as the nuclear lamina. And later on they used polymer physics modeling to study those mechanisms, which lead to the development of the Strings & Binders Switch (SBS) model. And this is just a glimpse of the topics that are discussed in this Episode.

References

Miguel R. Branco, Ana Pombo (2006) Intermingling of Chromosome Territories in Interphase Suggests Role in Translocations and Transcription-Dependent Associations (PLOS Biology) DOI: 10.1371/journal.pbio.0040138
Robert A. Beagrie, Ana Pombo (2016) Gene activation by metazoan enhancers: Diverse mechanisms stimulate distinct steps of transcription (BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology) DOI: 10.1002/bies.201600032
Emily Brookes, Inês de Santiago, … Ana Pombo (2012) Polycomb Associates Genome-wide with a Specific RNA Polymerase II Variant, and Regulates Metabolic Genes in ESCs (Cell Stem Cell) DOI: 10.1016/j.stem.2011.12.017
Mario Nicodemi, Ana Pombo (2014) Models of chromosome structure (Current Opinion in Cell Biology) DOI: 10.1016/j.ceb.2014.04.004 - Robert A. Beagrie, Antonio Scialdone, … Ana Pombo (2017) Complex multi-enhancer contacts captured by genome architecture mapping (Nature) DOI: 10.1038/nature21411

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