Modularity of select riboswitch expression platforms enables facile engineering of novel genetic regulatory devices.
ACS Synth Biol
; 2(8): 463-72, 2013 Aug 16.
Article
em En
| MEDLINE
| ID: mdl-23654267
ABSTRACT
RNA-based biosensors and regulatory devices have received significant attention for their potential in a broad array of synthetic biology applications. One of the primary difficulties in engineering these molecules is the lack of facile methods to link sensory modules, or aptamers, to readout domains. Such efforts typically require extensive screening or selection of sequences that facilitate interdomain communication. Bacteria have evolved a widespread form of gene regulation known as riboswitches that perform this task with sufficient fidelity to control expression of biosynthetic and transport proteins essential for normal cellular homeostasis. In this work, we demonstrate that select riboswitch readout domains, called expression platforms, are modular in that they can host a variety of natural and synthetic aptamers to create novel chimeric RNAs that regulate transcription both in vitro and in vivo. Importantly, this technique does not require selection of device-specific "communication modules" required to transmit ligand binding to the regulatory domain, enabling rapid engineering of novel functional RNAs.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bacillus subtilis
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Engenharia Genética
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Regulação da Expressão Gênica
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Redes Reguladoras de Genes
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Riboswitch
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Biologia Sintética
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Modelos Genéticos
Idioma:
En
Revista:
ACS Synth Biol
Ano de publicação:
2013
Tipo de documento:
Article