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The MSL complex: X chromsome and beyond

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Akhtar,  Asifa
Department of Chromatin Regulation, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society;

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Citation

Laverty, C., Lucci, J., & Akhtar, A. (2010). The MSL complex: X chromsome and beyond. Current Opinion in Genetics & Development, 20, 171-178. doi:10.1016/j.gde.2010.01.007.


Cite as: http://hdl.handle.net/21.11116/0000-0005-E138-E
Abstract
X chromosomal regulation is a process that presents systematic problems of chromosome recognition and coordinated gene regulation. In Drosophila males, the ribonucleoprotein Male-Specific Lethal (MSL) complex plays an important role in hyperactivation of the X-linked genes to equalize gene dosage differences between the sexes. It appears that X chromosome recognition by the MSL complex may be mediated through a combination of sequence-specificity and transcriptional activities. The resulting transcriptional up-regulation also seems to involve several mechanisms, encompassing both gene-specific and chromosome-wide approaches. Interestingly the histone H4 lysine 16 specific MOF histone acetyl transferase, a key MSL member that hyper-acetylates the male X chromosome, is also involved in gene regulation beyond dosage compensation. A comparison of Drosophila and mammalian systems reveals intriguing parallels in MOF behavior, and highlights the multidisciplinary nature of this enzyme.