Publication Date:
2012-07-24
Description:
Through hyperacetylation of histone H4 lysine 16 (H4K16), the male-specific lethal (MSL) complex in Drosophila approximately doubles transcription from the single male X chromosome in order to match X-linked expression in females and expression from diploid autosomes. By obtaining accurate measurements of RNA polymerase II (Pol II) occupancies and short promoter-proximal RNA production, we detected a consistent, genome-scale increase in Pol II activity at the promoters of male X-linked genes. Moreover, we found that enhanced Pol II recruitment to male X-linked promoters is largely dependent on the MSL complex. These observations provide insights into how global modulation of chromatin structure by histone acetylation contributes to the precise control of Pol II function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conrad, Thomas -- Cavalli, Florence M G -- Vaquerizas, Juan M -- Luscombe, Nicholas M -- Akhtar, Asifa -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2012 Aug 10;337(6095):742-6. doi: 10.1126/science.1221428. Epub 2012 Jul 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Immunobiology and Epigenetics, 79108 Freiburg im Breisgau, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22821985" target="_blank"〉PubMed〈/a〉
Keywords:
Acetylation
;
Animals
;
Cell Line
;
Chromatin Immunoprecipitation
;
DNA Polymerase II/*metabolism
;
*Dosage Compensation, Genetic
;
Drosophila/*genetics/metabolism
;
Drosophila Proteins/*metabolism
;
Female
;
Genes, Insect
;
*Genes, X-Linked
;
Histones/metabolism
;
Male
;
Multigene Family
;
*Promoter Regions, Genetic
;
Sex Characteristics
;
Transcription, Genetic
;
X Chromosome/*genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
