Table 6.

Activity of TCA and glyoxylate cycle enzymes inS. sibiricus (renamed E. sibiricum) andE. longusa

EnzymeActivity (nmol/min/mg of protein)
S. sibiricusE. longus on acetate
On acetateOn glucose
Citrate synthase1001633
Aconitate hydratase413663
Isocitrate dehydrogenase16414130
2-Oxoglutarate dehydrogenase2050
Succinate dehydrogenase74 —b
Fumarate hydratase5502
Malate dehydrogenase707508554
Isocitrate lyase3505
Malate synthase212020
Aceto-coenzyme A-synthase39
Acetokinase5
  • a Modified from reference219.

  • b —, not determined.