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Article Abstract
Hydrogen peroxide (HO) is a key reactive oxygen species involved in cellular redox signaling and oxidative stress. Due to its polar nature, its transport across membranes is regulated by aquaporins (AQPs), membrane channels traditionally known for HO transport. Certain AQPs, known as peroxiporins, facilitate selective HO permeation, playing critical roles in mantaining redox homeostasis. This review summarizes insights from molecular dynamics (MD) simulations into the mechanisms of HO transport through AQPs. Key structural regions, such as the selectivity filter (SF) and NPA motif, influence HO permeation, with energy profiles revealing differences from HO transport. While molecular mimicry suggests similarities in the movement of HO and HO, specific interactions and energetic barriers highlight the complexity of the process. We highlight the need for integrating computational and experimental findings for further studies to unify mechanistic understanding and develop applications in redox biology.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12075058 | PMC |
| http://dx.doi.org/10.1007/s12551-025-01288-9 | DOI Listing |
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