Role of ferredoxin in the synthesis of alpha-ketobutyrate from propionyl coenzyme A and carbon dioxide by enzymes from photosynthetic and nonphotosynthetic bacteria.

Butyrates/biosynthesis Carbon Dioxide/metabolism Carbon Isotopes Cell-Free System Chromatium/enzymology Clostridium/enzymology Coenzyme A/metabolism Desulfovibrio/enzymology Ferredoxins/metabolism Isoleucine/biosynthesis Keto Acids/biosynthesis Ketoglutaric Acids/metabolism Ligases/metabolism Malates/metabolism Oxaloacetates/metabolism Photosynthesis Propionates/metabolism Pyruvates/metabolism

Butyrates Carbon Isotopes Ferredoxins Keto Acids Ketoglutaric Acids Malates Oxaloacetates Propionates Pyruvates Isoleucine Carbon Dioxide Ligases Coenzyme A