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Ubiquitinol-cytochrome C reductase Fe-S subunit TAT signal This is the N-terminal region of the E or R chain, Ubiquitinol-cytochrome C reductase Fe-S subunit, of the hetero-hexameric cytochrome bc1 complex. This region is a TAT-signal region. The cytochrome bc1 complex is an oligomeric membrane protein complex that is a component of respiratory and photosynthetic electron transfer chains. The enzyme couples the transfer of electrons from ubiquinol to cytochrome c with the the generation of a protein gradient across the membrane. The motif is also associated with Rieske (pfam00355), UCR_TM (pfam02921) and Ubiq-Cytc-red_N (pfam09165). |
Jiyao W et al.(2023). "The conserved domain database in 2023.",