Permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins
Hydrogen peroxide (H2O2) transport by aquaporins (AQP) is a critical feature for cellular redox signaling. However, the H2O2 permeation mechanism through these channels remains poorly understood. Through functional assays, two Plasma membrane Intrinsic Protein (PIP) AQP from Medicago truncatula, MtP...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Portland Press
2025
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| Online Access: | http://hdl.handle.net/20.500.12123/22893 https://portlandpress.com/biochemj/article-abstract/481/19/1329/234803/Permeation-mechanisms-of-hydrogen-peroxide-and?redirectedFrom=fulltext https://doi.org/10.1042/BCJ20240310 |
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| author | Chevriau, Jonathan Zerbetto De Palma, Gerardo Jozefkowicz, Cintia Vitali, Victoria Andrea Canessa Fortuna, Agustina Ayub, Nicolás Daniel Soto, Gabriela Cynthia Bienert, Gerd Patrick Zeida, Ari Alleva, Karina Edith |
| author_browse | Alleva, Karina Edith Ayub, Nicolás Daniel Bienert, Gerd Patrick Canessa Fortuna, Agustina Chevriau, Jonathan Jozefkowicz, Cintia Soto, Gabriela Cynthia Vitali, Victoria Andrea Zeida, Ari Zerbetto De Palma, Gerardo |
| author_facet | Chevriau, Jonathan Zerbetto De Palma, Gerardo Jozefkowicz, Cintia Vitali, Victoria Andrea Canessa Fortuna, Agustina Ayub, Nicolás Daniel Soto, Gabriela Cynthia Bienert, Gerd Patrick Zeida, Ari Alleva, Karina Edith |
| author_sort | Chevriau, Jonathan |
| collection | INTA Digital |
| description | Hydrogen peroxide (H2O2) transport by aquaporins (AQP) is a critical feature for cellular redox signaling. However, the H2O2 permeation mechanism through these channels remains poorly understood. Through functional assays, two Plasma membrane Intrinsic Protein (PIP) AQP from Medicago truncatula, MtPIP2;2 and MtPIP2;3 have been identified as pH-gated channels capable of facilitating the permeation of both water (H2O) and H2O2. Employing a combination of unbiased and enhanced sampling molecular dynamics simulations, we investigated the key barriers and translocation mechanisms governing H2O2 permeation through these AQP in both open and closed conformational states. Our findings reveal that both H2O and H2O2 encounter their primary permeation barrier within the selectivity filter (SF) region of MtPIP2;3. In addition to the SF barrier, a second energetic barrier at the NPA (asparagine-proline-alanine) region that is more restrictive for the passage of H2O2 than for H2O, was found. This behavior can be attributed to a dissimilar geometric arrangement and hydrogen bonding profile between both molecules in this area. Collectively, these findings suggest mechanistic heterogeneity in H2O and H2O2 permeation through PIPs. |
| format | info:ar-repo/semantics/artículo |
| id | INTA22893 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Portland Press |
| publisherStr | Portland Press |
| record_format | dspace |
| spelling | INTA228932025-07-04T11:54:28Z Permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins Chevriau, Jonathan Zerbetto De Palma, Gerardo Jozefkowicz, Cintia Vitali, Victoria Andrea Canessa Fortuna, Agustina Ayub, Nicolás Daniel Soto, Gabriela Cynthia Bienert, Gerd Patrick Zeida, Ari Alleva, Karina Edith Hydrogen Peroxide Cell Membranes Permeability Peróxido de Hidrógeno Membrana Celular Permeabilidad Aquaporin Acuaporinas Hydrogen peroxide (H2O2) transport by aquaporins (AQP) is a critical feature for cellular redox signaling. However, the H2O2 permeation mechanism through these channels remains poorly understood. Through functional assays, two Plasma membrane Intrinsic Protein (PIP) AQP from Medicago truncatula, MtPIP2;2 and MtPIP2;3 have been identified as pH-gated channels capable of facilitating the permeation of both water (H2O) and H2O2. Employing a combination of unbiased and enhanced sampling molecular dynamics simulations, we investigated the key barriers and translocation mechanisms governing H2O2 permeation through these AQP in both open and closed conformational states. Our findings reveal that both H2O and H2O2 encounter their primary permeation barrier within the selectivity filter (SF) region of MtPIP2;3. In addition to the SF barrier, a second energetic barrier at the NPA (asparagine-proline-alanine) region that is more restrictive for the passage of H2O2 than for H2O, was found. This behavior can be attributed to a dissimilar geometric arrangement and hydrogen bonding profile between both molecules in this area. Collectively, these findings suggest mechanistic heterogeneity in H2O and H2O2 permeation through PIPs. Instituto de Biotecnología Fil: Chevriau, Jonathan. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Fisicoquímica Biológica; Argentina. Fil: Chevriau, Jonathan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Zerbetto De Palma, Gerardo. Universidad de Buenos Aires, Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Fisicomatemática; Argentina Fil: Jozefkowicz, Cintia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Jozefkowicz, Cintia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Jozefkowicz, Cintia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Vitali, Victoria Andrea. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Fisicoquímica Biológica; Argentina Fil: Vitali, Victoria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Vitali, Victoria Andrea. Universidad de Buenos Aires, Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Fisicomatemática; Argentina Fil: Canessa Fortuna, Agustina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Fisicoquímica Biológica; Argentina Fil: Canessa Fortuna, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Canessa Fortuna, Agustina. Universidad de Buenos Aires, Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Fisicomatemática; Argentina Fil: Ayub, Nicolás Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Ayub, Nicolás Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ayub, Nicolás Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Soto, Gabriela Cynthia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Soto, Gabriela Cynthia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Soto, Gabriela Cynthia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Bienert, Gerd Patrick. Technical University of Munich. TUM School of Life Sciences. Crop Physiology; Alemania Fil: Bienert, Gerd Patrick. Technical University of Munich. HEF World Agricultural Systems Center; Alemania Fil: Zeida, Ari. Universidad de la República. Facultad de Medicina. Departamento de Bioquímica and Centro de Investigaciones Biomédicas (Ceinbio); Uruguay Fil: Alleva, Karina Edith. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Fisicoquímica Biológica; Argentina Fil: Alleva, Karina Edith. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Alleva, Karina Edith. Universidad de Buenos Aires, Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Fisicomatemática; Argentina 2025-07-04T11:49:41Z 2025-07-04T11:49:41Z 2024-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/22893 https://portlandpress.com/biochemj/article-abstract/481/19/1329/234803/Permeation-mechanisms-of-hydrogen-peroxide-and?redirectedFrom=fulltext 1470-8728 https://doi.org/10.1042/BCJ20240310 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Portland Press Biochemical Journal 481 (19) : 1329-1347 (October 2024) |
| spellingShingle | Hydrogen Peroxide Cell Membranes Permeability Peróxido de Hidrógeno Membrana Celular Permeabilidad Aquaporin Acuaporinas Chevriau, Jonathan Zerbetto De Palma, Gerardo Jozefkowicz, Cintia Vitali, Victoria Andrea Canessa Fortuna, Agustina Ayub, Nicolás Daniel Soto, Gabriela Cynthia Bienert, Gerd Patrick Zeida, Ari Alleva, Karina Edith Permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins |
| title | Permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins |
| title_full | Permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins |
| title_fullStr | Permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins |
| title_full_unstemmed | Permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins |
| title_short | Permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins |
| title_sort | permeation mechanisms of hydrogen peroxide and water through plasma membrane intrinsic protein aquaporins |
| topic | Hydrogen Peroxide Cell Membranes Permeability Peróxido de Hidrógeno Membrana Celular Permeabilidad Aquaporin Acuaporinas |
| url | http://hdl.handle.net/20.500.12123/22893 https://portlandpress.com/biochemj/article-abstract/481/19/1329/234803/Permeation-mechanisms-of-hydrogen-peroxide-and?redirectedFrom=fulltext https://doi.org/10.1042/BCJ20240310 |
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