Subunits of the PBAP Chromatin Remodeler Are Capable of Mediating Enhancer-Driven Transcription in . Author Yulii Shidlovskii, Oleg Bylino, Alexander Shaposhnikov, Zaur Kachaev, Lyubov Lebedeva, Valeria Kolesnik, Diego Amendola, Giovanna De Simone, Nadia Formicola, Paul Schedl, Filomena Digilio, Ennio Giordano Publication Year 2021 Type Journal Article Abstract The chromatin remodeler SWI/SNF is an important participant in gene activation, functioning predominantly by opening the chromatin structure on promoters and enhancers. Here, we describe its novel mode of action in which SWI/SNF factors mediate the targeted action of an enhancer. We studied the functions of two signature subunits of PBAP subfamily, BAP170 and SAYP, in . These subunits were stably tethered to a transgene reporter carrying the core promoter. The tethered subunits mediate transcription of the reporter in a pattern that is generated by enhancers close to the insertion site in multiple loci throughout the genome. Both tethered SAYP and BAP170 recruit the whole PBAP complex to the reporter promoter. However, we found that BAP170-dependent transcription is more resistant to the depletion of other PBAP subunits, suggesting that BAP170 may play a more critical role in establishing enhancer-dependent transcription. Keywords Animals, Drosophila Proteins, Promoter Regions, Genetic, Transcription, Genetic, Humans, Transcription Factors, Models, Genetic, Animals, Genetically Modified, Drosophila melanogaster, In Situ Hybridization, Transcriptional Activation, Enhancer Elements, Genetic, Protein Subunits, Chromatin Assembly and Disassembly, Fluorescent Antibody Technique, Indirect Journal Int J Mol Sci Volume 22 Issue 6 Date Published 2021 Mar 11 ISSN Number 1422-0067 DOI 10.3390/ijms22062856 Alternate Journal Int J Mol Sci PMCID PMC7999800 PMID 33799739 PubMedPubMed CentralGoogle ScholarBibTeXEndNote X3 XML