| Q8H0T4 | UPL2_ARATH | Arabidopsis thaliana (Mouse-ear cress) | UPL2 At1g70320 F17O7.14/F17O7.15 | Detail |
| Q80TP3 | UBR5_MOUSE | Mus musculus (Mouse) | Ubr5 Edd Edd1 Kiaa0896 | Detail |
| Q9NGP4 | UBC9_DICDI | Dictyostelium discoideum (Slime mold) | ubc9 DDB_G0287693 | Detail |
| A8WN14 | UFL1_CAEBR | Caenorhabditis briggsae | ufl-1 CBG00415 | Detail |
| P56130 | Y285_HELPY | Helicobacter pylori (strain ATCC 700392 / 26695) (Campylobacter pylori) | HP_0285 | Detail |
| Q05086 | UBE3A_HUMAN | Homo sapiens (Human) | UBE3A E6AP EPVE6AP HPVE6A | Detail |
| Q95017 | UBC9_CAEEL | Caenorhabditis elegans | ubc-9 F29B9.6 | Detail |
| Q6DCZ9 | UBC12_XENLA | Xenopus laevis (African clawed frog) | ube2m ubc12 | Detail |
| P36051 | MCD4_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | MCD4 FSR2 SSU21 ZRG16 YKL165C YKL619 | Detail |
| P75954 | YCFS_ECOLI | Escherichia coli (strain K12) | ycfS b1113 JW5820 | Detail |