Fig. 4From: Methanosarcina acetivorans contains a functional ISC system for iron-sulfur cluster biogenesisReconstitution of apo-AcnA activity by [4Fe-4S]-IscU2. Apo-AcnA (4 μM) was incubated with IscU2S-FeS (40 μM) or iron (Fe2+) and sulfide (S2−) (80 μM each) and aconitase activity was measured over timeBack to article page