PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21103538-1 2011 The light-dependent reduction of protochlorophyllide, a key step in the synthesis of chlorophyll, is catalyzed by the enzyme protochlorophyllide oxidoreductase (POR) and requires two photons (O. Protochlorophyllide 33-52 cytochrome p450 oxidoreductase Homo sapiens 125-159 21103538-1 2011 The light-dependent reduction of protochlorophyllide, a key step in the synthesis of chlorophyll, is catalyzed by the enzyme protochlorophyllide oxidoreductase (POR) and requires two photons (O. Protochlorophyllide 33-52 cytochrome p450 oxidoreductase Homo sapiens 161-164