preferred_name: (2E)-butenoyl-CoA + FADH2 => butanoyl-CoA + FAD + H(+)
preferred_name_lc: (2e)-butenoyl-coa + fadh2 => butanoyl-coa + fad + h(+)
label: (2E)-butenoyl-CoA + FADH2 => butanoyl-CoA + FAD + H(+)
label_lc: (2e)-butenoyl-coa + fadh2 => butanoyl-coa + fad + h(+)