Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At2g26540	Catalyzes cyclization of the linear tetrapyrrole, hydroxymethylbilane, to the macrocyclic uroporphyrinogen III, a precursor of tetrapyrroles such as chlorophyll, heme and phycobilins.	Identification and characterization of the Arabidopsis gene encoding the tetrapyrrole biosynthesis enzyme uroporphyrinogen III synthase.; 2008; DOI: 10.1042/bj20070770; PMID: 18042043; https://pubmed.ncbi.nlm.nih.gov/18042043/
Rice	Os03g0186100	Catalyzes cyclization of the linear tetrapyrrole, hydroxymethylbilane, to the macrocyclic uroporphyrinogen III, a precursor of tetrapyrroles such as chlorophyll, heme and phycobilins.	No verified direct reference in this release