Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At3g56940	Catalytic component of the MgProto monomethylester (MgProtoME) cyclase complex that catalyzes the formation of the isocyclic ring in chlorophyll biosynthesis.	Arabidopsis CHL27, located in both envelope and thylakoid membranes, is required for the synthesis of protochlorophyllide.; 2003; DOI: 10.1073/pnas.2136793100; PMID: 14673103; https://pubmed.ncbi.nlm.nih.gov/14673103/ | Role of Arabidopsis CHL27 protein for photosynthesis, chloroplast development and gene expression profiling.; 2008; DOI: 10.1093/pcp/pcn111; PMID: 18682427; https://pubmed.ncbi.nlm.nih.gov/18682427/ | Potential roles of YCF54 and ferredoxin-NADPH reductase for magnesium protoporphyrin monomethylester cyclase.; 2018; DOI: 10.1111/tpj.13869; PMID: 29443418; https://pubmed.ncbi.nlm.nih.gov/29443418/