PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12549924-1 2003 Cytochrome b(6)f complexes contain a molecule of chlorophyll a (Chla), which, in Chlamydomonas reinhardtii, can be exchanged for extraneous chlorophyll during protracted incubation of the purified complex in detergent solution. chla 64-68 cytochrome b Chlamydomonas reinhardtii 0-12