Elucidating the Activation Mechanism of AMPK by Direct Pan-Activator PF-739
Adenosine monophosphate-activated protein kinase (AMPK) is a key energy sensor regulating the cell metabolism in response to energy supply and demand. The evolutionary adaptation of AMPK to different tissues is accomplished through the expression of distinct isoforms that can form up to 12 heterotri...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:88ab5e8ff89d4ee7b3e4f0385d933a5a2021-11-05T06:45:03ZElucidating the Activation Mechanism of AMPK by Direct Pan-Activator PF-7392296-889X10.3389/fmolb.2021.760026https://doaj.org/article/88ab5e8ff89d4ee7b3e4f0385d933a5a2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmolb.2021.760026/fullhttps://doaj.org/toc/2296-889XAdenosine monophosphate-activated protein kinase (AMPK) is a key energy sensor regulating the cell metabolism in response to energy supply and demand. The evolutionary adaptation of AMPK to different tissues is accomplished through the expression of distinct isoforms that can form up to 12 heterotrimeric complexes, which exhibit notable differences in the sensitivity to direct activators. To comprehend the molecular factors of the activation mechanism of AMPK, we have assessed the changes in the structural and dynamical properties of β1- and β2-containing AMPK complexes formed upon binding to the pan-activator PF-739. The analysis revealed the molecular basis of the PF-739-mediated activation of AMPK and enabled us to identify distinctive features that may justify the slightly higher affinity towards the β1−isoform, such as the β1−Asn111 to β2−Asp111 substitution, which seems to be critical for modulating the dynamical sensitivity of β1- and β2 isoforms. The results are valuable in the design of selective activators to improve the tissue specificity of therapeutic treatment.Elnaz AledavoodAria GheeraertAria GheeraertAlessia ForteLaurent VuillonIvan RivaltaIvan RivaltaF. Javier LuqueF. Javier LuqueCarolina EstarellasFrontiers Media S.A.articleAMPKprotein dynamicprotein activation mechanismpan-activatorisoform selectivitymolecular dynamics simulationBiology (General)QH301-705.5ENFrontiers in Molecular Biosciences, Vol 8 (2021) |
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AMPK protein dynamic protein activation mechanism pan-activator isoform selectivity molecular dynamics simulation Biology (General) QH301-705.5 |
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AMPK protein dynamic protein activation mechanism pan-activator isoform selectivity molecular dynamics simulation Biology (General) QH301-705.5 Elnaz Aledavood Aria Gheeraert Aria Gheeraert Alessia Forte Laurent Vuillon Ivan Rivalta Ivan Rivalta F. Javier Luque F. Javier Luque Carolina Estarellas Elucidating the Activation Mechanism of AMPK by Direct Pan-Activator PF-739 |
description |
Adenosine monophosphate-activated protein kinase (AMPK) is a key energy sensor regulating the cell metabolism in response to energy supply and demand. The evolutionary adaptation of AMPK to different tissues is accomplished through the expression of distinct isoforms that can form up to 12 heterotrimeric complexes, which exhibit notable differences in the sensitivity to direct activators. To comprehend the molecular factors of the activation mechanism of AMPK, we have assessed the changes in the structural and dynamical properties of β1- and β2-containing AMPK complexes formed upon binding to the pan-activator PF-739. The analysis revealed the molecular basis of the PF-739-mediated activation of AMPK and enabled us to identify distinctive features that may justify the slightly higher affinity towards the β1−isoform, such as the β1−Asn111 to β2−Asp111 substitution, which seems to be critical for modulating the dynamical sensitivity of β1- and β2 isoforms. The results are valuable in the design of selective activators to improve the tissue specificity of therapeutic treatment. |
format |
article |
author |
Elnaz Aledavood Aria Gheeraert Aria Gheeraert Alessia Forte Laurent Vuillon Ivan Rivalta Ivan Rivalta F. Javier Luque F. Javier Luque Carolina Estarellas |
author_facet |
Elnaz Aledavood Aria Gheeraert Aria Gheeraert Alessia Forte Laurent Vuillon Ivan Rivalta Ivan Rivalta F. Javier Luque F. Javier Luque Carolina Estarellas |
author_sort |
Elnaz Aledavood |
title |
Elucidating the Activation Mechanism of AMPK by Direct Pan-Activator PF-739 |
title_short |
Elucidating the Activation Mechanism of AMPK by Direct Pan-Activator PF-739 |
title_full |
Elucidating the Activation Mechanism of AMPK by Direct Pan-Activator PF-739 |
title_fullStr |
Elucidating the Activation Mechanism of AMPK by Direct Pan-Activator PF-739 |
title_full_unstemmed |
Elucidating the Activation Mechanism of AMPK by Direct Pan-Activator PF-739 |
title_sort |
elucidating the activation mechanism of ampk by direct pan-activator pf-739 |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doaj.org/article/88ab5e8ff89d4ee7b3e4f0385d933a5a |
work_keys_str_mv |
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