>6xkt_R mol:protein length:191 Ubiquinol-cytochrome c reductase iron-sulfur subunitMSHAEDNAGTRRDFLYHATAATGVVVTGAAVWPLINQMNASADVKAMASIFVDVSAVEVGTQLTVKWRGKPVFIRRRDEKDIELARSVPLGALRDTSAENANKPGAEATDENRTLPAFDGTNTGEWLVMLGVCTHLGCVPMGDKSGDFGGWFCPCHGSHYDSAGRIRKGPAPRNLDIPVAAFVDETTIKLG