Human Frataxin binds about 7 iron atoms (Yoon and Cowan 2003, Huang et al. 2008). After transferring 2 iron atoms to form a new 2Fe-2S cluster, Frataxin would temporarily contain about 5 iron atoms.
Cowan, JA, Yoon, T
O'Neill, HA, Cavadini, P, Benada, O, Isaya, G
Dizin, E, Cowan, JA, Huang, J
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