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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Autores principales: Elnaz Aledavood, Aria Gheeraert, Alessia Forte, Laurent Vuillon, Ivan Rivalta, F. Javier Luque, Carolina Estarellas
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Publicado: Frontiers Media S.A. 2021
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Acceso en línea:https://doaj.org/article/88ab5e8ff89d4ee7b3e4f0385d933a5a
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spelling 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)
institution DOAJ
collection DOAJ
language EN
topic AMPK
protein dynamic
protein activation mechanism
pan-activator
isoform selectivity
molecular dynamics simulation
Biology (General)
QH301-705.5
spellingShingle 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
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