Orthophosphate increases the efficiency of slow muscle-myosin isoform in the presence of omecamtiv mecarbil

Omecamtiv mecarbil is a small molecule effector under clinical trial for the treatment of systolic heart failure. Here the authors define the molecular mechanisms of its inotropic action and find it can increase the efficiency of contraction in muscle fibres when the orthophosphate concentration ris...

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Bibliographic Details
Main Authors: Serena Governali, Marco Caremani, Cristina Gallart, Irene Pertici, Ger Stienen, Gabriella Piazzesi, Coen Ottenheijm, Vincenzo Lombardi, Marco Linari
Format: article
Language:EN
Published: Nature Portfolio 2020
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Online Access:https://doaj.org/article/a1356051549946cab751e8490d8aee60
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Summary:Omecamtiv mecarbil is a small molecule effector under clinical trial for the treatment of systolic heart failure. Here the authors define the molecular mechanisms of its inotropic action and find it can increase the efficiency of contraction in muscle fibres when the orthophosphate concentration rises with the beat frequency.