Thymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth.

We examined the thymoquinone induced inhibition of purified F1 or membrane bound F1FO E. coli ATP synthase. Both purified F1 and membrane bound F1FO were completely inhibited by thymoquinone with no residual ATPase activity. The process of inhibition was fully reversible and identical in both membra...

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Main Authors: Zulfiqar Ahmad, Thomas F Laughlin, Ismail O Kady
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4440651?pdf=render
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author Zulfiqar Ahmad
Thomas F Laughlin
Ismail O Kady
author_facet Zulfiqar Ahmad
Thomas F Laughlin
Ismail O Kady
author_sort Zulfiqar Ahmad
collection DOAJ
description We examined the thymoquinone induced inhibition of purified F1 or membrane bound F1FO E. coli ATP synthase. Both purified F1 and membrane bound F1FO were completely inhibited by thymoquinone with no residual ATPase activity. The process of inhibition was fully reversible and identical in both membrane bound F1Fo and purified F1 preparations. Moreover, thymoquinone induced inhibition of ATP synthase expressing wild-type E. coli cell growth and non-inhibition of ATPase gene deleted null control cells demonstrates that ATP synthase is a molecular target for thymoquinone. This also links the beneficial dietary based antimicrobial and anticancer effects of thymoquinone to its inhibitory action on ATP synthase.
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spelling doaj.art-6d823fa5428244a9944b364a396bd2a12022-12-22T00:40:58ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01105e012780210.1371/journal.pone.0127802Thymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth.Zulfiqar AhmadThomas F LaughlinIsmail O KadyWe examined the thymoquinone induced inhibition of purified F1 or membrane bound F1FO E. coli ATP synthase. Both purified F1 and membrane bound F1FO were completely inhibited by thymoquinone with no residual ATPase activity. The process of inhibition was fully reversible and identical in both membrane bound F1Fo and purified F1 preparations. Moreover, thymoquinone induced inhibition of ATP synthase expressing wild-type E. coli cell growth and non-inhibition of ATPase gene deleted null control cells demonstrates that ATP synthase is a molecular target for thymoquinone. This also links the beneficial dietary based antimicrobial and anticancer effects of thymoquinone to its inhibitory action on ATP synthase.http://europepmc.org/articles/PMC4440651?pdf=render
spellingShingle Zulfiqar Ahmad
Thomas F Laughlin
Ismail O Kady
Thymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth.
PLoS ONE
title Thymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth.
title_full Thymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth.
title_fullStr Thymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth.
title_full_unstemmed Thymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth.
title_short Thymoquinone Inhibits Escherichia coli ATP Synthase and Cell Growth.
title_sort thymoquinone inhibits escherichia coli atp synthase and cell growth
url http://europepmc.org/articles/PMC4440651?pdf=render
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AT ismailokady thymoquinoneinhibitsescherichiacoliatpsynthaseandcellgrowth