Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At3g07270	GTP cyclohydrolase 1 is the first enzyme in the biosynthetic pathway leading to folic acid.	Folate synthesis in plants: the first step of the pterin branch is mediated by a unique bimodular GTP cyclohydrolase I.; 2002; DOI: 10.1073/pnas.192278499; PMID: 12221287; https://pubmed.ncbi.nlm.nih.gov/12221287/