Microbial nanowires: type IV pili or cytochrome filaments?

F Wang, L Craig, X Liu, C Rensing, EH Egelman - Trends in microbiology, 2023 - cell.com
A dynamic field of study has emerged involving long-range electron transport by
extracellular filaments in anaerobic bacteria, with Geobacter sulfurreducens being used as a …

Electron Transfer Beyond the Outer Membrane: Putting Electrons to Rest

JA Gralnick, DR Bond - Annual Review of Microbiology, 2023 - annualreviews.org
Extracellular electron transfer (EET) is the physiological process that enables the reduction
or oxidation of molecules and minerals beyond the surface of a microbial cell. The first …

Assessing Thermal Response of Redox Conduction for Anti-Arrhenius Kinetics in a Microbial Cytochrome Nanowire

MJ Guberman-Pfeffer - The Journal of Physical Chemistry B, 2022 - ACS Publications
A micrometers-long helical homopolymer of the outer-membrane cytochrome type S (OmcS)
from Geobacter sulfurreducens is proposed to transport electrons to extracellular acceptors …

[HTML][HTML] Archaea oxidizing alkanes through alkyl-coenzyme M reductases

F Musat, KU Kjeldsen, AE Rotaru, SC Chen… - Current Opinion in …, 2024 - Elsevier
This review synthesizes recent discoveries of novel archaea clades capable of oxidizing
higher alkanes, from volatile ones like ethane to longer-chain alkanes like hexadecane …

Microbial nanowires with genetically modified peptide ligands to sustainably fabricate electronic sensing devices

Y Lekbach, T Ueki, X Liu, T Woodard, J Yao… - Biosensors and …, 2023 - Elsevier
Nanowires have substantial potential as the sensor component in electronic sensing
devices. However, surface functionalization of traditional nanowire and nanotube materials …

Hemes on a string: insights on the functional mechanisms of PgcA from Geobacter sulfurreducens

TM Fernandes, MA Silva, L Morgado… - Journal of Biological …, 2023 - ASBMB
Microbial extracellular reduction of insoluble compounds requires soluble electron shuttles
that diffuse in the environment, freely diffusing cytochromes, or direct contact with cellular …

Chances and challenges of long‐distance electron transfer for cellular redox reactions

B Giese, M Karamash, KM Fromm - FEBS letters, 2023 - Wiley Online Library
Biological redox reactions often use a set‐up in which final redox partners are localized in
different compartments and electron transfer (ET) among them is mediated by redox‐active …

Exploring oxidative stress pathways in Geobacter sulfurreducens: the redox network between MacA peroxidase and triheme periplasmic cytochromes

PC Portela, L Morgado, MA Silva, L Denkhaus… - Frontiers in …, 2023 - frontiersin.org
The recent reclassification of the strict anaerobe Geobacter sulfurreducens bacterium as
aerotolerant brought attention for oxidative stress protection pathways. Although the electron …

Response to Wang et al.: evidence contradicting the cytochrome-only model

DR Lovley - Trends in Microbiology, 2023 - cell.com
The electrically conductive filaments of Geobacter species are of interest because they are
thought to explain Geobacter's key role in multiple biogeochemical cycles and applied …

Heme Hopping Falls Short: What Explains Anti-Arrhenius Conductivity in a Multi-heme Cytochrome Nanowire?

MJ Guberman-Pfeffer - bioRxiv, 2022 - biorxiv.org
A helical homopolymer of the outer-membrane cytochrome type S (OmcS) was proposed to
electrically connect a common soil bacterium, Geobacter sulfurreducens, with minerals and …