MFSFIDDIPSFEQIKARVRDDLRKHGWEKRWNDSRLVQKSRELLNDEELKIDPATWIWKRMPSREEVAARRQRDFETVWKYRYRLGGFASGALLALALAGIFSTGNFGGSSDAGNRPSVVYPIE Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), which is a respiratory chain that generates an electrochemical potential coupled to ATP synthesis. 14KD_RHOSH 124 14 kDa peptide of ubiquinol-cytochrome c2 oxidoreductase complex