Single-molecule analysis of transcription factor binding at transcription sites in live cells.
Single-molecule analysis of transcription factor binding at transcription sites in live cells.
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DOI:
10.1038/ncomms5456
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发表时间:
2014-07-18
影响因子:
16.6
通讯作者:
McNally, James G.
中科院分区:
文献类型:
--
作者:
Morisaki, Tatsuya;Mueller, Waltraud G.;Golob, Nicole;Mazza, Davide;McNally, James G.
Although numerous live-cell measurements have shown that transcription factors bind chromatin transiently, no measurements of transient binding have been reported at the endogenous response elements (REs) where transcription is normally induced. Here we show that at endogenous REs, the transcriptionally productive specific binding of p53 and of the glucocorticoid receptor (GR) is transient. We also find residence times roughly comparable to that of endogenous GR REs at an artificial, multi-copy array of gene regulatory sites, supporting the use of multi-copy arrays for live-cell analysis of transcription. Finally, we find that at any moment only a small fraction of TF molecules are engaged in transcriptionally productive binding at endogenous REs. The small fraction of bound factors provides one explanation for gene bursting and it also indicates that REs may often be unoccupied, resulting in partial responses to transcriptional signals.
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影响因子:
56.9
作者:
CHO, YJ;GORINA, S;PAVLETICH, NP
通讯作者:
PAVLETICH, NP
影响因子:
1.6
作者:
Stasevich TJ;McNally JG
通讯作者:
McNally JG
影响因子:
56.9
作者:
Karpova, Tatiana S.;Kim, Min J.;McNally, James G.
通讯作者:
McNally, James G.
影响因子:
30.8
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John S;Sabo PJ;Thurman RE;Sung MH;Biddie SC;Johnson TA;Hager GL;Stamatoyannopoulos JA
通讯作者:
Stamatoyannopoulos JA
影响因子:
14.9
作者:
Mazza D;Abernathy A;Golob N;Morisaki T;McNally JG
通讯作者:
McNally JG