Recruitment of the ATP-dependent chromatin remodeler dMi-2 to the transcribed region of active heat shock genes.
Recruitment of the ATP-dependent chromatin remodeler dMi-2 to the transcribed region of active heat shock genes.
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DOI:
10.1093/nar/gks178
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发表时间:
2012-06
影响因子:
14.9
通讯作者:
Brehm A
中科院分区:
文献类型:
--
作者:
Mathieu EL;Finkernagel F;Murawska M;Scharfe M;Jarek M;Brehm A
The ATP-dependent chromatin remodeler dMi-2 can play both positive and negative roles in gene transcription. Recently, we have shown that dMi-2 is recruited to the hsp70 gene in a heat shock-dependent manner, and is required to achieve high transcript levels. Here, we use chromatin immunoprecipitation sequencing (ChIP-Seq) to identify other chromatin regions displaying increased dMi-2 binding upon heat shock and to characterize the distribution of dMi-2 over heat shock genes. We show that dMi-2 is recruited to the body of at least seven heat shock genes. Interestingly, dMi-2 binding extends several hundred base pairs beyond the polyadenylation site into the region where transcriptional termination occurs. We find that dMi-2 does not associate with the entire nucleosome-depleted hsp70 locus 87A. Rather, dMi-2 binding is restricted to transcribed regions. Our results suggest that dMi-2 distribution over active heat shock genes are determined by transcriptional activity.
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