Building enhancers from the ground up: a synthetic biology approach.
Building enhancers from the ground up: a synthetic biology approach.
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从头开始建筑增强剂:一种合成生物学方法。
DOI:
10.1016/j.cell.2011.06.024
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发表时间:
2011-07-08
期刊:
影响因子:
64.5
通讯作者:
Fraser SE
中科院分区:
文献类型:
--
作者:
Amit R;Garcia HG;Phillips R;Fraser SE
A challenge of the synthetic biology approach is to use our understanding of a system to recreate a biological function with specific properties. We have applied this framework to bacterial enhancers, combining a driver, transcription factor binding sites, and a poised polymerase to create synthetic modular enhancers. Our findings suggest that enhancer-based transcriptional control depends critically and quantitatively on DNA looping, leading to complex regulatory effects when the enhancer cassettes contain additional transcription factor binding sites for TetR, a bacterial transcription factor. We show through a systematic interplay of experiment and thermodynamic modeling that the level of gene expression can be modulated to convert a variable inducer concentration input into discrete or step-like output expression levels. Finally, using a different DNA-binding protein (TraR), we show that the regulatory output is not a particular feature of the specific DNA-binding protein used for the enhancer but a general property of synthetic bacterial enhancers.
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影响因子:
3.6
作者:
Atkinson, MR;Pattaramanon, N;Ninfa, AJ
通讯作者:
Ninfa, AJ
影响因子:
4
作者:
MAGASANIK, B
通讯作者:
MAGASANIK, B
影响因子:
5.6
作者:
LAW, SM;BELLOMY, GR;RECORD, MT
通讯作者:
RECORD, MT
DOI:
10.1038/nrg2697
发表时间:
2009-12
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1073/pnas.90.7.3083
发表时间:
1993-04-01
影响因子:
11.1
作者:
JOUNG, JK;LE, LU;HOCHSCHILD, A
通讯作者:
HOCHSCHILD, A