Cargando…
Tuning Transcriptional Regulation through Signaling: A Predictive Theory of Allosteric Induction
Allosteric regulation is found across all domains of life, yet we still lack simple, predictive theories that directly link the experimentally tunable parameters of a system to its input-output response. To that end, we present a general theory of allosteric transcriptional regulation using the Mono...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5991102/ https://www.ncbi.nlm.nih.gov/pubmed/29574055 http://dx.doi.org/10.1016/j.cels.2018.02.004 |
_version_ | 1783329733208965120 |
---|---|
author | Razo-Mejia, Manuel Barnes, Stephanie L. Belliveau, Nathan M. Chure, Griffin Einav, Tal Lewis, Mitchell Phillips, Rob |
author_facet | Razo-Mejia, Manuel Barnes, Stephanie L. Belliveau, Nathan M. Chure, Griffin Einav, Tal Lewis, Mitchell Phillips, Rob |
author_sort | Razo-Mejia, Manuel |
collection | PubMed |
description | Allosteric regulation is found across all domains of life, yet we still lack simple, predictive theories that directly link the experimentally tunable parameters of a system to its input-output response. To that end, we present a general theory of allosteric transcriptional regulation using the Monod-Wyman-Changeux model. We rigorously test this model using the ubiquitous simple repression motif in bacteria by first predicting the behavior of strains that span a large range of repressor copy numbers and DNA binding strengths and then constructing and measuring their response. Our model not only accurately captures the induction profiles of these strains, but also enables us to derive analytic expressions for key properties such as the dynamic range and [EC(50)]. Finally, we derive an expression for the free energy of allosteric repressors that enables us to collapse our experimental data onto a single master curve that captures the diverse phenomenology of the induction profiles. |
format | Online Article Text |
id | pubmed-5991102 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
record_format | MEDLINE/PubMed |
spelling | pubmed-59911022018-06-07 Tuning Transcriptional Regulation through Signaling: A Predictive Theory of Allosteric Induction Razo-Mejia, Manuel Barnes, Stephanie L. Belliveau, Nathan M. Chure, Griffin Einav, Tal Lewis, Mitchell Phillips, Rob Cell Syst Article Allosteric regulation is found across all domains of life, yet we still lack simple, predictive theories that directly link the experimentally tunable parameters of a system to its input-output response. To that end, we present a general theory of allosteric transcriptional regulation using the Monod-Wyman-Changeux model. We rigorously test this model using the ubiquitous simple repression motif in bacteria by first predicting the behavior of strains that span a large range of repressor copy numbers and DNA binding strengths and then constructing and measuring their response. Our model not only accurately captures the induction profiles of these strains, but also enables us to derive analytic expressions for key properties such as the dynamic range and [EC(50)]. Finally, we derive an expression for the free energy of allosteric repressors that enables us to collapse our experimental data onto a single master curve that captures the diverse phenomenology of the induction profiles. 2018-03-21 2018-04-25 /pmc/articles/PMC5991102/ /pubmed/29574055 http://dx.doi.org/10.1016/j.cels.2018.02.004 Text en http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Razo-Mejia, Manuel Barnes, Stephanie L. Belliveau, Nathan M. Chure, Griffin Einav, Tal Lewis, Mitchell Phillips, Rob Tuning Transcriptional Regulation through Signaling: A Predictive Theory of Allosteric Induction |
title | Tuning Transcriptional Regulation through Signaling: A Predictive Theory of Allosteric Induction |
title_full | Tuning Transcriptional Regulation through Signaling: A Predictive Theory of Allosteric Induction |
title_fullStr | Tuning Transcriptional Regulation through Signaling: A Predictive Theory of Allosteric Induction |
title_full_unstemmed | Tuning Transcriptional Regulation through Signaling: A Predictive Theory of Allosteric Induction |
title_short | Tuning Transcriptional Regulation through Signaling: A Predictive Theory of Allosteric Induction |
title_sort | tuning transcriptional regulation through signaling: a predictive theory of allosteric induction |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5991102/ https://www.ncbi.nlm.nih.gov/pubmed/29574055 http://dx.doi.org/10.1016/j.cels.2018.02.004 |
work_keys_str_mv | AT razomejiamanuel tuningtranscriptionalregulationthroughsignalingapredictivetheoryofallostericinduction AT barnesstephaniel tuningtranscriptionalregulationthroughsignalingapredictivetheoryofallostericinduction AT belliveaunathanm tuningtranscriptionalregulationthroughsignalingapredictivetheoryofallostericinduction AT churegriffin tuningtranscriptionalregulationthroughsignalingapredictivetheoryofallostericinduction AT einavtal tuningtranscriptionalregulationthroughsignalingapredictivetheoryofallostericinduction AT lewismitchell tuningtranscriptionalregulationthroughsignalingapredictivetheoryofallostericinduction AT phillipsrob tuningtranscriptionalregulationthroughsignalingapredictivetheoryofallostericinduction |