ArticleScientific reports2016
Low Energy Atomic Models Suggesting a Pilus Structure that could Account for Electrical Conductivity of Geobacter sulfurreducens Pili.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 54 citations in OpenAlex.
- Ultrastructural and atomic characterization of biofilm-associated extracellular filaments in Shewanella oneidensis MR-1.Nature communications · 2026Article
- Electron transfer in multicentre redox proteins: from fundamentals to extracellular electron transfer.Bioscience reports · 2025Review
- Hydrated cable bacteria exhibit protonic conductivity over long distances.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Electron transport across the cell envelope via multihemeFrontiers in chemistry · 2025Review
- To be or not to be a cytochrome: electrical characterizations are inconsistent withFrontiers in microbiology · 2024Article
- Assessing Thermal Response of Redox Conduction forThe journal of physical chemistry. B · 2022Article
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- Endogenous Electric Signaling as a Blueprint for Conductive Materials in Tissue Engineering.Bioelectricity · 2021Review
- Multifaceted aspects of charge transfer.Physical chemistry chemical physics : PCCP · 2020Article
- Protein Nanowires: the Electrification of the Microbial World and Maybe Our Own.Journal of bacteriology · 2020Review
- Bioinspired bio-voltage memristors.Nature communications · 2020Article
- Article
- Phylogenetic and structural diversity of aromatically dense pili from environmental metagenomes.Environmental microbiology reports · 2020Article
- Assessing Possible Mechanisms of Micrometer-Scale Electron Transfer in Heme-Free Geobacter sulfurreducens Pili.The journal of physical chemistry. B · 2019Article
- Direct Extracellular Electron Transfer of theBioMed research international · 2019Article
- Harnessing the power of microbial nanowires.Microbial biotechnology · 2018Review
- Terahertz-infrared spectroscopy of Shewanella oneidensis MR-1 extracellular matrix.Journal of biological physics · 2018Article
- Electrically conductive pili from pilin genes of phylogenetically diverse microorganisms.The ISME journal · 2018Article
- Microbial activity influences electrical conductivity of biofilm anode.Water research · 2017Article
- Predicting and Interpreting the Structure of Type IV Pilus of Electricigens by Molecular Dynamics Simulations.Molecules (Basel, Switzerland) · 2017Article
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The metallic-like electrical conductivity of Geobacter sulfurreducens pili has been documented with multiple lines of experimental evidence, but there is only a rudimentary understanding of the structural features which contribute to this novel mode of biological electron transport. In order to determine if it was feasible for the pilin monomers of G. sulfurreducens to assemble into a conductive filament, theoretical energy-minimized models of Geobacter pili were constructed with a previously described approach, in which pilin monomers are assembled using randomized structural parameters and distance constraints. The lowest energy models from a specific group of predicted structures lacked a central channel, in contrast to previously existing pili models. In half of the no-channel models the three N-terminal aromatic residues of the pilin monomer are arranged in a potentially electrically conductive geometry, sufficiently close to account for the experimentally observed metallic like conductivity of the pili that has been attributed to overlapping pi-pi orbitals of aromatic amino acids. These atomic resolution models capable of explaining the observed conductive properties of Geobacter pili are a valuable tool to guide further investigation of the metallic-like conductivity of the pili, their role in biogeochemical cycling, and applications in bioenergy and bioelectronics.
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