In total, eight iron-sulfur (4Fe-4S) clusters are incorporated into six subunits (mitochondrial matrix-located NDUFS1, S2, S7, S8 and mitochondrial membrane-located V1 and V2) (Andrews et al. 2013). Incorporation into NDUFV1 and V2 (located on the mitochondrial membrane) is shown in a separate reaction. The mechanism of transfer in all cases is unknown.
Fearnley, IM, Carroll, J, Andrews, B, Walker, JE, Ding, S
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