Epigenetics Podcast

Dosage Compensation in Drosophila (Asifa Akhtar)

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Dosage compensation is an essential process to regulate the gene expression of the X-chromosome in female and male flies. Thereby the mechanism of regulation in humans and in drosophila is different. In humans one X-chromosome is randomly shut down in females compared to men, whereas in drosophila equilibrium is achieved by overexpression of the single X-chromosome in males. In this Episode our guest Dr. Asifa Akhtar provides information on her work on dosage compensation in drosophila melanogaster and how the MSL-complex, the Histone-acetyltransferase MOF work together in this process. Furthermore, she also talks about potential functions of those Proteins in the human system.

 

References 

  • Jan Kadlec, Erinc Hallacli, … Asifa Akhtar (2011) Structural basis for MOF and MSL3 recruitment into the dosage compensation complex by MSL1 (Nature Structural & Molecular Biology) DOI: 10.1038/nsmb.1960 
  • Thomas Conrad, Florence M.G. Cavalli, … Asifa Akhtar (2012) The MOF Chromobarrel Domain Controls Genome-wide H4K16 Acetylation and Spreading of the MSL Complex (Developmental Cell) DOI: 10.1016/j.devcel.2011.12.016 
  • Maria Samata, Asifa Akhtar (2018) Dosage Compensation of the X Chromosome: A Complex Epigenetic Assignment Involving Chromatin Regulators and Long Noncoding RNAs (Annual Review of Biochemistry) DOI: 10.1146/annurev-biochem-062917-011816 
  • Bilal N. Sheikh, Sukanya Guhathakurta, Asifa Akhtar (2019) The non-specific lethal (NSL) complex at the crossroads of transcriptional control and cellular homeostasis (EMBO reports) DOI: 10.15252/embr.201847630 
  • Kin Chung Lam, Ho-Ryun Chung, … Asifa Akhtar (2019) The NSL complex-mediated nucleosome landscape is required to maintain transcription fidelity and suppression of transcription noise (Genes & Development) DOI: 10.1101/gad.321489.118 
  • Claudia Isabelle Keller Valsecchi, M. Felicia Basilicata, … Asifa Akhtar (2018) Facultative dosage compensation of developmental genes on autosomes in Drosophila and mouse embryonic stem cells (Nature Communications) DOI: 10.1038/s41467-018-05642-2

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