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Electron transfer flavoproteins are dimeric proteins that function as mobile electron carriers. These proteins are grouped in three classes: (a) flavoproteins serving as electron acceptors for flavoprotein dehydrogenases in mammalian mitochondria and in several bacteria; (b) those heterodimeric proteins that function in nitrogen fixation and are structurally related to mammalian electron transfer flavoprotein; (c) putative proteins related to mammalian electron transfer flavoprotein, encoded by genes in the fix region of the Escherichia coli genome.
Electron Transfer Flavoproteins: Structure and the Reductive Half-Reaction
Electron transfer flavoprotein (ETF) and its electron acceptor, ETF-ubiquinone oxidoreductase (ETF-QO) play essential roles in the β-oxidation of fatty acids, branched-chain amino acids, lysine, tryptophan, and N-methyl amino acids (N-methyl-glycine and N,N-dimethylglycine) in mammalian mitochondria. Mechanistic...
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References
Dwyer TM, Mortl S, Kemter K, Bacher A, Fauq A, Frerman FE. The intraflavin hydrogen bond in human electron transfer flavoprotein modulates redox potential and may participate in electron transfer flavoprotein. Biochemistry. 1999;38:9735–45.
Griffin KJ, Dwyer TM, Manning MC, Meyer JD, Carpenter JF, Frerman FE. AlphaT244M mutation affects the redox, kinetic and in vitro folding properties of Paracoccus denitrificans electron transfer flavoprotein. Biochemistry. 1997;36:4194–202.
Ishizaki K, Larson TR, Schauer N, Fernie AR, Graham IA, Leaver CJ. The critical role of Arabadopsis electron transfer flavoprotein ubiquinone oxidoreductase during dark-induced starvation. Plant Cell. 2005;17:2587–600.
Ma YC, Funk M, Dunham WR, Komuniecki R. Purification and characterization of electron transfer flavoprotein rhodoquinone oxidoreductase from anaerobic mitochondria of the adult parasitic nematode, Ascaris suum. J Biol Chem. 1993;268:20360–5.
Roberts DL, Frerman FE, Kim JJP. Three dimensional structure of human electron transfer flavoprotein to 2.1 A resolution. Proc Nat Acad Sci USA. 1996;93:14355–60.
Salazar D, Zhang L, deGala GD, Frerman FE. Expression and characterization of two pathogenic mutations in human electron transfer flavoprotein. J Biol Chem. 1997;272:26425–33.
Seifert EL, Estey C, Xuan JY, Harper ME. Electron transport chain dependent and independent mechanisms of mitochondrial H2O2 emission during long chain fatty acid oxidation. J Biol Chem. 2010;285:5748–58.
Swanson M, Usselman RJ, Frerman FE, Eaton GR, Eaton SS. The iron-sulfur cluster of electron transfer flavoprotein ubiquinone oxidoreductase is the electron acceptor for electron transfer flavoprotein. Biochemistry. 2008;47:8894–901.
Toogood HS, Leys D, Scrutton NS. Dynamics driving function-new insights from electron transferring flavoproteins and partner complexes. FEBS J. 2007;274:5481–504.
Zhang J, Frerman FE, Kim JJP. Structure of electron transfer flavoprotein ubiquinone oxidoreductase and electron transfer to the mitochondrial ubiquinone pool. Proc Nat Acad Sci USA. 2006;103:16212–7.
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© 2013 European Biophysical Societies' Association (EBSA)
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Frerman, F.E. (2013). Electron Transfer Flavoproteins. In: Roberts, G.C.K. (eds) Encyclopedia of Biophysics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16712-6_40
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DOI: https://doi.org/10.1007/978-3-642-16712-6_40
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-16711-9
Online ISBN: 978-3-642-16712-6
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