PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10632712-2 2000 The flash-oxidized primary donor P+ of the reaction center (RC) is rapidly re-reduced by heme H1 (Em,7 = 290 mV), heme H2 (Em,7 = 240 mV) or low-potential hemes L1/L2 (Em,7 = 90 mV) of the RC-bound tetraheme, depending on their redox state before photoexcitation. tetraheme 198-207 L1 cell adhesion molecule Homo sapiens 161-166