Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At5g26030	Catalyzes the last step of heme biosynthesis by inserting ferrous iron into protoporphyrin IX to produce protoheme.	No verified direct reference in this release
Rice	Os09g0297000	Catalyzes the ferrous insertion into protoporphyrin IX.	No verified direct reference in this release
Rice	UniProt: A2Y3Q5	Catalyzes the ferrous insertion into protoporphyrin IX.	No verified direct reference in this release