| P06104 | UBC2_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | RAD6 UBC2 YGL058W | Detail |
| P13018 | STA_ECOLX | Escherichia coli | sat-1; sat-2 | Detail |
| Q58513 | Y1113_METJA | Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) (Methanococcus jannaschii) | MJ1113 | Detail |
| Q3ZCF7 | UB2D3_BOVIN | Bos taurus (Bovine) | UBE2D3 | Detail |
| Q553F3 | UBC2_DICDI | Dictyostelium discoideum (Slime mold) | ubc2 DDB_G0275787 | Detail |
| O74549 | UBC12_SCHPO | Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) | ubc12 SPCC777.10c | Detail |
| O95427 | PIGN_HUMAN | Homo sapiens (Human) | PIGN MCD4 | Detail |
| Q66KB0 | UBE2Z_XENTR | Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) | ube2z | Detail |
| Q6C093 | UBC2_YARLI | Yarrowia lipolytica (strain CLIB 122 / E 150) (Yeast) (Candida lipolytica) | UBC2 YALI0F26697g | Detail |
| Q9C918 | UBC38_ARATH | Arabidopsis thaliana (Mouse-ear cress) | UBC38 At1g53020 F14G24.30 F8L10 | Detail |