Sequence Cluster id id2 desc organism isHeteromeric 1 Cluster1 BRENDA::D2RIQ3 butanoyl-CoA dehydrogenase (NAD+, ferredoxin) (subunit 2/3) (EC 1.3.1.109); short-chain acyl-CoA dehydrogenase (EC 1.3.8.1) Acidaminococcus fermentans heteromer 2 Cluster1 BRENDA::Q18AQ5 butanoyl-CoA dehydrogenase (NAD+, ferredoxin) (subunit 1/3) (EC 1.3.1.109) Clostridioides difficile heteromer