Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At3g55330	Required for efficient repair of photodamaged PSII, but not tightly associated with the complex.	Distinct functions for the two PsbP-like proteins PPL1 and PPL2 in the chloroplast thylakoid lumen of Arabidopsis.; 2007; DOI: 10.1104/pp.107.105866; PMID: 17827269; https://pubmed.ncbi.nlm.nih.gov/17827269/
Arabidopsis	At2g39470	NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain and possibly in a chloroplast respiratory chain.	Distinct functions for the two PsbP-like proteins PPL1 and PPL2 in the chloroplast thylakoid lumen of Arabidopsis.; 2007; DOI: 10.1104/pp.107.105866; PMID: 17827269; https://pubmed.ncbi.nlm.nih.gov/17827269/
Arabidopsis	At3g05410	PsbP domain-containing protein 7, chloroplastic.	No verified direct reference in this release