Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At2g17200	Binds and presumably selects ubiquitin-conjugates for destruction.	No verified direct reference in this release
Arabidopsis	At2g17190	Binds and presumably selects ubiquitin-conjugates for destruction.	The defective proteasome but not substrate recognition function is responsible for the null phenotypes of the Arabidopsis proteasome subunit RPN10.; 2011; DOI: 10.1105/tpc.111.086702; PMID: 21764993; https://pubmed.ncbi.nlm.nih.gov/21764993/