<prompt> Iron-sulfur proteins are components ofCitric acid cycleATP synthaseb-oxidationRespiratory chain  <response>: Flavoproteins Iron-Sulfur proteins Fe-S are Components of the Respiratory Chain Complexes.Iron-sulfur proteins nonheme iron proteins, Fe-S are found in Complexes I, II, and III. These may contain one, two, or four Fe atoms linked to inorganic sulfur atoms andor cysteine SH groups to the protein. The Fe-S take pa in single electron transfer reactions in which one Fe atom undergoes oxidoreduction between Fe2 and Fe3.Reference: Harper;s Biochemistry; 30th edition; Chapter13;The respiratory chain Oxidative phosphorylation 