Synthetic gene networks recapitulate dynamic signal decoding and differential gene expression
Synthetic gene networks recapitulate dynamic signal decoding and differential gene expression
复制标题
合成基因网络概括了动态信号解码和差异基因表达
DOI:
10.1101/2021.01.07.425755
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
M. Khammash
中科院分区:
文献类型:
--
作者:
Dirk Benzinger;Serguei Ovinnikov;M. Khammash
Cells live in constantly changing environments and employ dynamic signaling pathways to transduce information about the signals they encounter. However, the mechanisms by which dynamic signals are decoded into appropriate gene expression patterns remain poorly understood. Here, we devise networked optogenetic pathways that achieve novel dynamic signal processing functions that recapitulate cellular information processing. Exploiting light-responsive transcriptional regulators with differing response kinetics, we build a falling-edge pulse-detector and show that this circuit can be employed to demultiplex dynamically encoded signals. We combine this demultiplexer with dCas9-based gene networks to construct pulsatile-signal filters and decoders. Applying information theory, we show that dynamic multiplexing significantly increases the information transmission capacity from signal to gene expression state. Finally, we use dynamic multiplexing for precise multidimensional regulation of a heterologous metabolic pathway. Our results elucidate design principles of dynamic information processing and provide original synthetic systems capable of decoding complex signals for biotechnological applications.
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影响因子:
4.8
作者:
Hughes, Robert M.;Bolger, Steven;Tapadia, Hersh;Tucker, Chandra L.
通讯作者:
Tucker, Chandra L.
影响因子:
16
作者:
Wilson MZ;Ravindran PT;Lim WA;Toettcher JE
通讯作者:
Toettcher JE
影响因子:
2.9
作者:
Zoltowski, Brian D.;Motta-Mena, Laura B.;Gardner, Kevin H.
通讯作者:
Gardner, Kevin H.
影响因子:
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作者:
Ravindran, Pavithran T.;Wilson, Maxwell Z.;Jena, Siddhartha G.;Toettcher, Jared E.
通讯作者:
Toettcher, Jared E.
DOI:
10.1042/bj20081949
发表时间:
2009-03-15
期刊:
The Biochemical journal
影响因子:
--
作者:
Shcherbo D;Murphy CS;Ermakova GV;Solovieva EA;Chepurnykh TV;Shcheglov AS;Verkhusha VV;Pletnev VZ;Hazelwood KL;Roche PM;Lukyanov S;Zaraisky AG;Davidson MW;Chudakov DM
通讯作者:
Chudakov DM