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5 component system: The Photosynthetic Reaction Center (PRC) Family

P0C0Y7 RCEH aka PUHA
P0C0Y8 RCEL aka PUFL
P0C0Y9 RCEM aka PUFM
Q02761 CYB aka PETB aka FBCB
Q02762 UCRI aka PEA aka FBCF