PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11044719-3 2000 After the successive removal of phytol and Mg21 from the chlorophyll molecule by chlorophyllase and "Mg dechelatase", pheophorbide a is cleaved and reduced to yield a colorless, open tetrapyrrole intermediate. Tetrapyrroles 183-195 WD repeat domain 13 Homo sapiens 43-47