In vivo binding of active heat shock transcription factor 1 to human chromosome 9 heterochromatin during stress.
In vivo binding of active heat shock transcription factor 1 to human chromosome 9 heterochromatin during stress.
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DOI:
10.1083/jcb.200109018
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发表时间:
2002-03-04
期刊:
影响因子:
--
通讯作者:
Vourc'h C
中科院分区:
文献类型:
--
作者:
Jolly C;Konecny L;Grady DL;Kutskova YA;Cotto JJ;Morimoto RI;Vourc'h C
Activation of the mammalian heat shock transcription factor (HSF)1 by stress is a multistep process resulting in the transcription of heat shock genes. Coincident with these events is the rapid and reversible redistribution of HSF1 to discrete nuclear structures termed HSF1 granules, whose function is still unknown. Key features are that the number of granules correlates with cell ploidy, suggesting the existence of a chromosomal target. Here we show that in humans, HSF1 granules localize to the 9q11-q12 heterochromatic region. Within this locus, HSF1 binds through direct DNA–protein interaction with a nucleosome-containing subclass of satellite III repeats. HSF1 granule formation only requires the DNA binding competence and the trimerization of the factor. This is the first example of a transcriptional activator that accumulates transiently and reversibly on a chromosome-specific heterochromatic locus.
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影响因子:
--
作者:
Lamszus, K;Kluwe, L;Westphal, M
通讯作者:
Westphal, M
影响因子:
19
作者:
Renauld, H;Gasser, SM
通讯作者:
Gasser, SM
DOI:
10.1038/newbio238122a0
发表时间:
1972-01-01
期刊:
NATURE-NEW BIOLOGY
影响因子:
--
作者:
BOBROW, M;MADAN, K;PEARSON, PL
通讯作者:
PEARSON, PL
DOI:
10.1073/pnas.89.5.1695
发表时间:
1992-03-01
影响因子:
11.1
作者:
GRADY, DL;RATLIFF, RL;MOYZIS, RK
通讯作者:
MOYZIS, RK
影响因子:
1.6
作者:
JONES, KW;PROSSER, J;GINELLI, E
通讯作者:
GINELLI, E