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Keyword - 4Fe-4S (KW-0004)

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Protein which contains at least one 4Fe-4S iron-sulfur cluster: 4 iron atoms complexed to 4 inorganic sulfides and 4 sulfur atoms of cysteines from the protein. In a number of iron-sulfur proteins, the 4Fe-4S cluster can be reversibly converted by oxidation and loss of one iron ion to a 3Fe-4S cluster.




4 iron, 4 sulfur cluster binding [ GO:0051539 ]


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