| Q28CQ4 | UBC9_XENTR | Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) | ube2i ubc9 ubce9 TEgg019l14.1 TEgg096h05.1 | Detail |
| P0AA99 | YAFK_ECOLI | Escherichia coli (strain K12) | yafK b0224 JW0214 | Detail |
| Q5WC42 | YKUD_BACSK | Bacillus clausii (strain KSM-K16) | ABC3535 | Detail |
| B4GEL3 | UFL1_DROPE | Drosophila persimilis (Fruit fly) | GL22034 | Detail |
| B4KDK5 | UFL1_DROMO | Drosophila mojavensis (Fruit fly) | GI23931 | Detail |
| Q9XVK5 | UBC12_CAEEL | Caenorhabditis elegans | ubc-12 R09B3.4 | Detail |
| Q6Y1Z4 | UBC9_PAGMA | Pagrus major (Red sea bream) (Chrysophrys major) | ube2i | Detail |
| P50636 | RN19A_MOUSE | Mus musculus (Mouse) | Rnf19a Geg-154 Rnf19 Xybp | Detail |
| P71242 | WCAK_ECOLI | Escherichia coli (strain K12) | wcaK b2045 JW2030 | Detail |
| Q9HE05 | UFD2_SCHPO | Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) | ufd2 SPAC145.04 SPAC20H4.10 | Detail |