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September 10, 2025Open Access

Computational study of heme b595 to heme d electron transfer in E. coli cytochrome bd-I oxidase

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Authors

RSRaaif SiddeequeBEBaptiste EtcheverryCCCome Cattin

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Overview

This computational study reveals inter-heme electron transfer dynamics in E. coli cytochrome bd system, suggesting a novel understanding of redox chemistry.

Key Points

  • The study identifies critical factors influencing electron transfer from heme b595 to heme d in E. coli cytochrome bd-I, highlighting thermodynamic parameters.
  • Molecular dynamics simulations over 10 μs provide an unprecedented look into the electron transfer pathways in the cytochrome bd family.
  • The Projected Orbital Diabatization method demonstrates a novel approach to calculate inter-heme electronic coupling and reorganization energy.
  • Insights into the contributions from hemes, protein scaffold, and lipid bilayer significantly advance the understanding of respiratory electron transfer processes.

Cite This Study

Siddeeque et al. (2025) studied this question.

synapsesocial.com/papers/68c195559b7b07f3a0618dd9https://doi.org/10.1101/2025.09.03.673948
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