PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22634759-4 2012 We show that null mutations in FHY3 and FAR1 cause reduced protochlorophyllide (a precursor of chlorophyll) levels in darkness and less photobleaching in the light. Protochlorophyllide 59-78 FRS (FAR1 Related Sequences) transcription factor family Arabidopsis thaliana 40-44