Architectures and complex functions of tandem riboswitches.
Architectures and complex functions of tandem riboswitches.
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DOI:
10.1080/15476286.2022.2119017
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发表时间:
2022-01
期刊:
影响因子:
4.1
通讯作者:
Breaker, Ronald R.
中科院分区:
文献类型:
--
作者:
Sherlock, Madeline E.;Higgs, Gadareth;Yu, Diane;Widner, Danielle L.;White, Neil A.;Sudarsan, Narasimhan;Sadeeshkumar, Harini;Perkins, Kevin R.;Arachchilage, Gayan Mirihana;Malkowski, Sarah N.;King, Christopher G.;Harris, Kimberly A.;Gaffield, Glenn;Atilho, Ruben M.;Breaker, Ronald R.
Riboswitch architectures that involve the binding of a single ligand to a single RNA aptamer domain result in ordinary dose-response curves that require approximately a 100-fold change in ligand concentration to cover nearly the full dynamic range for gene regulation. However, by using multiple riboswitches or aptamer domains in tandem, these ligand-sensing structures can produce additional, complex gene control outcomes. In the current study, we have computationally searched for tandem riboswitch architectures in bacteria to provide a more complete understanding of the diverse biological and biochemical functions of gene control elements that are made exclusively of RNA. Numerous different arrangements of tandem homologous riboswitch architectures are exploited by bacteria to create more ‘digital’ gene control devices, which operate over a narrower ligand concentration range. Also, two heterologous riboswitch aptamers are sometimes employed to create two-input Boolean logic gates with various types of genetic outputs. These findings illustrate the sophisticated genetic decisions that can be made by using molecular sensors and switches based only on RNA.
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影响因子:
--
作者:
Ames TD;Rodionov DA;Weinberg Z;Breaker RR
通讯作者:
Breaker RR
影响因子:
3.2
作者:
Choudhary, Pallavi K.;Duret, Aurelie;Maillard, Julien
通讯作者:
Maillard, Julien
DOI:
10.1073/pnas.86.18.7054
发表时间:
1989-09-01
影响因子:
11.1
作者:
BENNER, SA;ELLINGTON, AD;TAUER, A
通讯作者:
TAUER, A
影响因子:
4.1
作者:
Brewer KI;Greenlee EB;Higgs G;Yu D;Mirihana Arachchilage G;Chen X;King N;White N;Breaker RR
通讯作者:
Breaker RR
影响因子:
7.2
作者:
Breaker, Ronald R.
通讯作者:
Breaker, Ronald R.