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Batista Dos Santos W, Souabni H, Picard M. Corseting a tripartite ABC transporter to make it fit for transport. Biochimie 2023; 205:117-123. [PMID: 36442691 DOI: 10.1016/j.biochi.2022.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
ABC transporters have long been known to mediate resistance phenotypes in all kingdoms of life, and ATP-driven tripartite efflux pump from Gram-negative bacteria have attracted increasing interest. We give a special focus on MacAB TolC, a prototypical member of the recently described Type VII ABC transporter superfamily, from Escherichia coli. We provide original experimental evidence for the in vitro, substrate-induced ATPase activity and show a maximal activity when the tripartite pump is fully assembled in lipid nanodiscs. These results are evaluated and interpreted in the context of the structural and functional data that have accumulated over the years.
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Affiliation(s)
- William Batista Dos Santos
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université Paris Cité, Paris, France; Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France
| | - Hager Souabni
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université Paris Cité, Paris, France; Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France
| | - Martin Picard
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université Paris Cité, Paris, France; Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France.
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Souabni H, Batista Dos Santos W, Cece Q, Catoire LJ, Puvanendran D, Bavro VN, Picard M. Quantitative real-time analysis of the efflux by the MacAB-TolC tripartite efflux pump clarifies the role of ATP hydrolysis within mechanotransmission mechanism. Commun Biol 2021; 4:493. [PMID: 33888866 PMCID: PMC8062640 DOI: 10.1038/s42003-021-01997-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 03/18/2021] [Indexed: 02/07/2023] Open
Abstract
Tripartite efflux pumps built around ATP-binding cassette (ABC) transporters are membrane protein machineries that perform vectorial export of a large variety of drugs and virulence factors from Gram negative bacteria, using ATP-hydrolysis as energy source. Determining the number of ATP molecules consumed per transport cycle is essential to understanding the efficiency of substrate transport. Using a reconstituted pump in a membrane mimic environment, we show that MacAB-TolC from Escherichia coli couples substrate transport to ATP-hydrolysis with high efficiency. Contrary to the predictions of the currently prevailing "molecular bellows" model of MacB-operation, which assigns the power stroke to the ATP-binding by the nucleotide binding domains of the transporter, by utilizing a novel assay, we report clear synchronization of the substrate transfer with ATP-hydrolysis, suggesting that at least some of the power stroke for the substrate efflux is provided by ATP-hydrolysis. Our findings narrow down the window for energy consumption step that results in substrate transition into the TolC-channel, expanding the current understanding of the efflux cycle of the MacB-based tripartite assemblies. Based on that we propose a modified model of the MacB cycle within the context of tripartite complex assembly.
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Affiliation(s)
- Hager Souabni
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université de Paris, Paris, France
- Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France
| | - William Batista Dos Santos
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université de Paris, Paris, France
- Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France
| | - Quentin Cece
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université de Paris, Paris, France
- Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France
| | - Laurent J Catoire
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université de Paris, Paris, France
- Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France
| | - Dhenesh Puvanendran
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université de Paris, Paris, France
- Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France
- Department of Cell Biology, Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY, USA
| | | | - Martin Picard
- Laboratoire de Biologie Physico-Chimique des Protéines Membranaires, CNRS UMR 7099, Université de Paris, Paris, France.
- Fondation Edmond de Rothschild pour le développement de la recherche Scientifique, Institut de Biologie Physico-Chimique, Paris, France.
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Perry TN, Souabni H, Rapisarda C, Fronzes R, Giusti F, Popot JL, Zoonens M, Gubellini F. BAmSA: Visualising transmembrane regions in protein complexes using biotinylated amphipols and electron microscopy. Biochimica et Biophysica Acta (BBA) - Biomembranes 2019; 1861:466-477. [DOI: 10.1016/j.bbamem.2018.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/06/2018] [Accepted: 11/08/2018] [Indexed: 12/30/2022]
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Bizouarn T, Souabni H, Serfaty X, Bouraoui A, Masoud R, Karimi G, Houée-Levin C, Baciou L. A Close-Up View of the Impact of Arachidonic Acid on the Phagocyte NADPH Oxidase. Methods Mol Biol 2019; 1982:75-101. [PMID: 31172467 DOI: 10.1007/978-1-4939-9424-3_5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The NADPH oxidase NOX2 complex consists of assembled cytosolic and redox membrane proteins. In mammalian cells, natural arachidonic acid (cis-AA), released by activated phospholipase-A2, plays an important role in the activation of the NADPH oxidase, but the mechanism of action of cis-AA is still a matter of debate. In cell-free systems, cis-AA is commonly used for activation although its structural effects are still unclear. Undoubtedly cis-AA participates in the synergistic multi-partner assembly that can be hardly studied at the molecular level in vivo due to cellular complexity. The capacity of this anionic amphiphilic fatty acid to activate the oxidase is mainly explained by its ability to disrupt intramolecular bonds, mimicking phosphorylation events in cell signaling and therefore allowing protein-protein interactions. Interestingly the geometric isomerism of the fatty acid and its purity are crucial for optimal superoxide production in cell-free assays. Indeed, optimal NADPH oxidase assembly was hampered by the substitution of the cis form by the trans forms of AA isomers (Souabni et al., BBA-Biomembranes 1818:2314-2324, 2012). Structural analysis of the changes induced by these two compounds, by circular dichroism and by biochemical methods, revealed differences in the interaction between subunits. We describe how the specific geometry of AA plays an important role in the activation of the NOX2 complex.
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Affiliation(s)
- Tania Bizouarn
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Hager Souabni
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Xavier Serfaty
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Aicha Bouraoui
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Rawand Masoud
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Gilda Karimi
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Chantal Houée-Levin
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Laura Baciou
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France.
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Baciou L, Masoud R, Souabni H, Serfaty X, Karimi G, Bizouarn T, Houée Levin C. Phagocyte NADPH oxidase, oxidative stress and lipids: Anti- or pro ageing? Mech Ageing Dev 2017; 172:30-34. [PMID: 29103982 DOI: 10.1016/j.mad.2017.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 09/29/2017] [Accepted: 11/01/2017] [Indexed: 11/15/2022]
Abstract
The role of NADPH oxidase in ageing is debated because of the dual roles of free radicals, toxic though necessary. In this paper we summarize some results about two aspects linked to the regulation of the activity of phagocyte NADPH oxidase (Nox2), encountered frequently in elderly people: inflammation and hypercholesterolemia. In the presence of a high amount of reactive oxygen species (ROS) created by itself or by any other source, the enzyme activity is mostly lowered. Oxidation of the membrane and/or of one of the cytosolic partners could be responsible for this loss of activity. However using a cell free system, we had also shown that a low amount of ROS could activate this enzyme. Similarly, cholesterol has a similar dual role, either activating or inhibiting. In in vitro cell free system with neutrophil membranes from healthy donors, the addition, as well as the removal of cholesterol, diminishes the Nox2 activity. The activity of Nox2 is lowered in neutrophils of untreated hypercholesterolemic patients. Finally oxysterols (25-hydroxy-cholesterol or 5α, 6α - epoxy-cholesterol) do not induce effects different from that of non-oxidized cholesterol. These findings are in agreement with the Janus role of NADPH oxidase, the main source of non-mitochondrial ROS.
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Affiliation(s)
- Laura Baciou
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Rawand Masoud
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Hager Souabni
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Xavier Serfaty
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Gilda Karimi
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Tania Bizouarn
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Chantal Houée Levin
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France.
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Ezzine A, Souabni H, Machillot P, Bizouarn T, Baciou L. Relationship between p22 phox expression, tag position and oxidase activity of the heterologous NADPH oxidase expressed in Pichia pastoris. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Souabni H, Wien F, Bizouarn T, Houée-Levin C, Réfrégiers M, Baciou L. The physicochemical properties of membranes correlate with the NADPH oxidase activity. Biochim Biophys Acta Gen Subj 2016; 1861:3520-3530. [PMID: 27378459 DOI: 10.1016/j.bbagen.2016.06.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/25/2016] [Accepted: 06/28/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND Phagocytes kill ingested microbes by exposure to high concentrations of toxic reactive species generated by NADPH-oxidases. This membrane-bound electron-transferring enzyme is tightly regulated by cellular signaling cascades. So far, molecular and biophysical studies of the NADPH-oxidase were performed over limited temperature ranges, which weaken our understanding of immune response or inflammatory events. In this work, we have inspected the influence of temperature and lipid membrane properties on the NADPH-oxidase activity using a system free of cell complexity. METHODS We have extended the experimental conditions of the accepted model for NADPH-oxidase activity, the so-called cell-free assay, to a large temperature range (10-40°C) using different membrane compositions (subcellular compartments or liposomes). RESULTS A remarkable increase of superoxide production rate was observed with rising temperature. Synchrotron radiation circular dichroism data showed that this is not correlated with protein secondary structure changes. When lipid bilayers are in fluid phase, Arrhenius plots of the oxidase activity showed linear relationships with small activation energy (Ea), while when in solid phase, high Ea was found. The sterol content modulates kinetic and thermodynamic parameters. CONCLUSION High temperature promotes the rate of superoxide production. The key element of this enhancement is related to membrane properties such as thickness and viscosity and not to protein structural changes. Membrane viscosity that can be driven by sterols is a paramount parameter of Ea of NADPH oxidase activity. The membrane bilayer state modulated by its sterol content may be considered locally as an enzyme regulator. This article is part of a Special Issue entitled "Science for Life" Guest Editor: Dr. Austen Angell, Dr. Salvatore Magazù and Dr. Federica Migliardo.
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Affiliation(s)
- Hager Souabni
- Laboratoire de Chimie Physique UMR 8000, Univ. Paris-Sud, CNRS, Université Paris Saclay, 91405 Orsay Cedex, France
| | - Frank Wien
- Synchrotron SOLEIL, Campus Paris-Saclay, 91192 Gif-sur-Yvette Cedex, France
| | - Tania Bizouarn
- Laboratoire de Chimie Physique UMR 8000, Univ. Paris-Sud, CNRS, Université Paris Saclay, 91405 Orsay Cedex, France
| | - Chantal Houée-Levin
- Laboratoire de Chimie Physique UMR 8000, Univ. Paris-Sud, CNRS, Université Paris Saclay, 91405 Orsay Cedex, France
| | | | - Laura Baciou
- Laboratoire de Chimie Physique UMR 8000, Univ. Paris-Sud, CNRS, Université Paris Saclay, 91405 Orsay Cedex, France.
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Bizouarn T, Karimi G, Masoud R, Souabni H, Machillot P, Serfaty X, Wien F, Réfrégiers M, Houée-Levin C, Baciou L. Exploring the arachidonic acid-induced structural changes in phagocyte NADPH oxidase p47phoxand p67phoxvia thiol accessibility and SRCD spectroscopy. FEBS J 2016; 283:2896-910. [DOI: 10.1111/febs.13779] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 05/20/2016] [Accepted: 06/08/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Tania Bizouarn
- Laboratoire de Chimie Physique UMR 8000; Univ. Paris-Sud; CNRS; Université Paris Saclay; Orsay Cedex France
| | - Gilda Karimi
- Laboratoire de Chimie Physique UMR 8000; Univ. Paris-Sud; CNRS; Université Paris Saclay; Orsay Cedex France
| | - Rawand Masoud
- Laboratoire de Chimie Physique UMR 8000; Univ. Paris-Sud; CNRS; Université Paris Saclay; Orsay Cedex France
| | - Hager Souabni
- Laboratoire de Chimie Physique UMR 8000; Univ. Paris-Sud; CNRS; Université Paris Saclay; Orsay Cedex France
| | - Paul Machillot
- Laboratoire de Chimie Physique UMR 8000; Univ. Paris-Sud; CNRS; Université Paris Saclay; Orsay Cedex France
| | - Xavier Serfaty
- Laboratoire de Chimie Physique UMR 8000; Univ. Paris-Sud; CNRS; Université Paris Saclay; Orsay Cedex France
| | - Frank Wien
- Synchrotron SOLEIL, Campus Paris-Saclay; Gif-sur-Yvette Cedex France
| | | | - Chantal Houée-Levin
- Laboratoire de Chimie Physique UMR 8000; Univ. Paris-Sud; CNRS; Université Paris Saclay; Orsay Cedex France
| | - Laura Baciou
- Laboratoire de Chimie Physique UMR 8000; Univ. Paris-Sud; CNRS; Université Paris Saclay; Orsay Cedex France
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Souabni H, Machillot P, Baciou L. Contribution of lipid environment to NADPH oxidase activity: influence of sterol. Biochimie 2015; 107 Pt A:33-42. [PMID: 25448770 DOI: 10.1016/j.biochi.2014.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 10/07/2014] [Indexed: 11/25/2022]
Abstract
The NADPH-oxidase complex, which plays beneficial or detrimental role in the inflammatory and degenerative diseases, is a membrane multi-subunit complex tightly regulated in order to produce superoxide anions, precursor of oxygen reactive species (ROS), in cells. The flavocytochrome b(558) (Cytb(558)) is the catalytic core of the NADPH oxidase which consists of two membrane proteins gp91(phox) (highly glycosylated) and p22(phox). In this work we took advantage of heterologous yeast cells engineered to express wild-type bovine Cytb(558) to analyze the properties of the NADPH oxidase activity during the biosynthesis processing steps of gp91(phox) and p22(phox) within endoplasmic reticulum (ER) and plasma membrane (Pmb). Our data showed that, in yeast, the heterodimerization at the endoplasmic reticulum membranes was concomitant with high level glycosylation of gp91(phox) and the heme acquisition. This study also demonstrated that the phagocyte NADPH oxidase was active at ER membranes and that this activity was surprisingly higher at the ER compared to the Pmb membranes. We have correlated these findings with the presence of sterols in the plasma membranes and their absence in ER membranes. This correlation was confirmed by decreased superoxide anion production rates in proteoliposomes supplemented with ergosterol or cholesterol. Our data support the idea that membrane environment might be determinant for ROS regulation and that sterols could directly interact with the membrane proteins of the NADPH oxidase constraining its capacity to produce superoxide anions.
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Souabni H, Thoma V, Bizouarn T, Chatgilialoglu C, Siafaka-Kapadai A, Baciou L, Ferreri C, Houée-Levin C, Ostuni M. trans Arachidonic acid isomers inhibit NADPH-oxidase activity by direct interaction with enzyme components. Biochimica et Biophysica Acta (BBA) - Biomembranes 2012; 1818:2314-24. [DOI: 10.1016/j.bbamem.2012.04.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 04/23/2012] [Accepted: 04/24/2012] [Indexed: 10/28/2022]
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