Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At2g40890	Cytochrome P450 which catalyzes 3'-hydroxylation of p- coumaric esters of shikimic/quinic acids to form lignin monomers.	CYP98A3 from Arabidopsis thaliana is a 3'-hydroxylase of phenolic esters, a missing link in the phenylpropanoid pathway.; 2001; DOI: 10.1074/jbc.m104047200; PMID: 11429408; https://pubmed.ncbi.nlm.nih.gov/11429408/ | The Arabidopsis REF8 gene encodes the 3-hydroxylase of phenylpropanoid metabolism.; 2002; DOI: 10.1046/j.1365-313x.2002.01266.x; PMID: 11967091; https://pubmed.ncbi.nlm.nih.gov/11967091/ | Changes in secondary metabolism and deposition of an unusual lignin in the ref8 mutant of Arabidopsis.; 2002; DOI: 10.1046/j.1365-313x.2002.01267.x; PMID: 11967092; https://pubmed.ncbi.nlm.nih.gov/11967092/ | A coumaroyl-ester-3-hydroxylase insertion mutant reveals the existence of nonredundant meta-hydroxylation pathways and essential roles for phenolic precursors in cell expansion and plant growth.; 2006; DOI: 10.1104/pp.105.069690; PMID: 16377748; https://pubmed.ncbi.nlm.nih.gov/16377748/ | Accumulation of coumarins in Arabidopsis thaliana.; 2006; DOI: 10.1016/j.phytochem.2005.11.006; PMID: 16405932; https://pubmed.ncbi.nlm.nih.gov/16405932/
Arabidopsis	At1g74550	Acts redundantly with CYP98A8 as tricoumaroylspermidine meta-hydroxylase.	No verified direct reference in this release