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desulfoferrodoxin FeS4 iron-binding domain This domain is found as essentially the full length of desulforedoxin, a 37-residue homodimeric non-heme iron protein. It is also found as the N-terminal domain of desulfoferrodoxin (rbo), a homodimeric non-heme iron protein with 2 Fe atoms per monomer in different oxidation states.This domain binds the ferric rather than the ferrous Fe of desulfoferrodoxin.Neelaredoxin, a monomeric blue non-heme iron protein, lacks this domain. [Energy metabolism, Electron transport]
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Jiyao W et al.(2023). "The conserved domain database in 2023.",