DOI: 10.1101/458356Oct 31, 2018Paper

The Archaellum of Methanospirillum hungatei is Electrically Conductive

BioRxiv : the Preprint Server for Biology
David Jeffrey Fraser WalkerDerek R Lovley

Abstract

Here we report that the archaellum of Methanospirillum hungatei is electrically conductive. Our analysis of the previously published archaellum structure suggests that a core of tightly packed phenylalanines is one likely route for electron conductance. This is the first demonstration that electrically conductive protein filaments (e-PFs) have evolved in Archaea and is the first e-PF for which a structure is known, facilitating mechanistic evaluation of long-range electron transport in e-PFs.

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