Predicting transcription factor specificity with all-atom models.
Predicting transcription factor specificity with all-atom models.
复制标题
通过全原子模型预测转录因子特异性。
DOI:
10.1093/nar/gkn589
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发表时间:
2008-11
影响因子:
14.9
通讯作者:
Kardar, Mehran
中科院分区:
文献类型:
--
作者:
Jamal Rahi, Sahand;Virnau, Peter;Mirny, Leonid A.;Kardar, Mehran
The binding of a transcription factor (TF) to a DNA operator site can initiate or repress the expression of a gene. Computational prediction of sites recognized by a TF has traditionally relied upon knowledge of several cognate sites, rather than an ab initio approach. Here, we examine the possibility of using structure-based energy calculations that require no knowledge of bound sites but rather start with the structure of a protein–DNA complex. We study the PurR Escherichia coli TF, and explore to which extent atomistic models of protein–DNA complexes can be used to distinguish between cognate and noncognate DNA sites. Particular emphasis is placed on systematic evaluation of this approach by comparing its performance with bioinformatic methods, by testing it against random decoys and sites of homologous TFs. We also examine a set of experimental mutations in both DNA and the protein. Using our explicit estimates of energy, we show that the specificity for PurR is dominated by direct protein–DNA interactions, and weakly influenced by bending of DNA.
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DOI:
10.1111/j.1432-1033.1990.tb15314.x
发表时间:
1990-01-26
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
MENG, LM;KILSTRUP, M;NYGAARD, P
通讯作者:
NYGAARD, P
影响因子:
5.6
作者:
Glasfeld, A;Koehler, AN;Brennan, RG
通讯作者:
Brennan, RG
影响因子:
56.9
作者:
Maerkl, Sebastian J.;Quake, Stephen R.
通讯作者:
Quake, Stephen R.
影响因子:
--
作者:
KULLBACK, S;LEIBLER, RA
通讯作者:
LEIBLER, RA
影响因子:
2.9
作者:
Onufriev, A;Bashford, D;Case, DA
通讯作者:
Case, DA