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Information on EC 1.3.1.109 - butanoyl-CoA dehydrogenase (NAD+, ferredoxin)

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IUBMB Comments
This flavin containg enzyme, isolated from the bacteria Acidaminococcus fermentans and butanoate-producing Clostridia species, couples the exergonic reduction of (E)-but-2-enoyl-CoA to butanoyl-CoA with NADH to the endergonic reduction of ferredoxin by NADH, using electron bifurcation to overcome the steep energy barrier in ferredoxin reduction.
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  • 1.3.1.109
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The enzyme appears in viruses and cellular organisms
Reaction Schemes
+
2
+
2
reduced ferredoxin [iron-sulfur] cluster
=
+
2
+
2
oxidized ferredoxin [iron-sulfur] cluster
Synonyms
BCD, Bcd/electron-transfer flavoprotein complex, Bcd/EtfAB, BcdA-EtfBC, Bct/Etf complex, bifurcating butyryl coenzyme A dehydrogenase/electron-transferring flavoprotein complex, bifurcating butyryl-CoA dehydrogenase, butyryl coenzyme A dehydrogenase, butyryl-CoA dehydrogenas, butyryl-CoA dehydrogenase-EtfAB complex, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
butanoyl-CoA + 2 NAD+ + 2 reduced ferredoxin [iron-sulfur] cluster = (E)-but-2-enoyl-CoA + 2 NADH + 2 oxidized ferredoxin [iron-sulfur] cluster
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