A new era for electron bifurcation.

Journal Article (Review;Journal Article)

Electron bifurcation, or the coupling of exergonic and endergonic oxidation-reduction reactions, was discovered by Peter Mitchell and provides an elegant mechanism to rationalize and understand the logic that underpins the Q cycle of the respiratory chain. Thought to be a unique reaction of respiratory complex III for nearly 40 years, about a decade ago Wolfgang Buckel and Rudolf Thauer discovered that flavin-based electron bifurcation is also an important component of anaerobic microbial metabolism. Their discovery spawned a surge of research activity, providing a basis to understand flavin-based bifurcation, forging fundamental parallels with Mitchell's Q cycle and leading to the proposal of metal-based bifurcating enzymes. New insights into the mechanism of electron bifurcation provide a foundation to establish the unifying principles and essential elements of this fascinating biochemical phenomenon.

Full Text

Duke Authors

Cited Authors

  • Peters, JW; Beratan, DN; Bothner, B; Dyer, RB; Harwood, CS; Heiden, ZM; Hille, R; Jones, AK; King, PW; Lu, Y; Lubner, CE; Minteer, SD; Mulder, DW; Raugei, S; Schut, GJ; Seefeldt, LC; Tokmina-Lukaszewska, M; Zadvornyy, OA; Zhang, P; Adams, MW

Published Date

  • December 2018

Published In

Volume / Issue

  • 47 /

Start / End Page

  • 32 - 38

PubMed ID

  • 30077080

Electronic International Standard Serial Number (EISSN)

  • 1879-0402

International Standard Serial Number (ISSN)

  • 1367-5931

Digital Object Identifier (DOI)

  • 10.1016/j.cbpa.2018.07.026


  • eng