Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At5g24650	Together with HP30-1 and HP20, triggers the import and insertion of transit sequence-less multi-pass transmembrane proteins (e.g. CEQORH) into the chloroplastic inner membrane.	Three proteins mediate import of transit sequence-less precursors into the inner envelope of chloroplasts in Arabidopsis thaliana.; 2013; DOI: 10.1073/pnas.1319648110; PMID: 24248378; https://pubmed.ncbi.nlm.nih.gov/24248378/
Arabidopsis	At3g49560	Together with HP30-2 and HP20, triggers the import and insertion of transit sequence-less multi-pass transmembrane proteins (e.g. CEQORH) into the chloroplastic inner membrane.	No verified direct reference in this release