Lester D, Farquharson C, Russell G, Houston B (Apr 2000). "Identification of a family of noncanonical ubiquitin-conjugating enzymes structurally related to yeast UBC6". Biochem Biophys Res Commun. 269 (2): 474–80. doi:10.1006/bbrc.2000.2302. PMID10708578.
Lester D, Farquharson C, Russell G, Houston B (Apr 2000). "Identification of a family of noncanonical ubiquitin-conjugating enzymes structurally related to yeast UBC6". Biochem Biophys Res Commun. 269 (2): 474–80. doi:10.1006/bbrc.2000.2302. PMID10708578.