| D3ZDK2 | UB2D1_RAT | Rattus norvegicus (Rat) | Ube2d1 | Detail |
| Q1RMX2 | UB2D2_BOVIN | Bos taurus (Bovine) | UBE2D2 UBC4 UBCH4 UBCH5B | Detail |
| P52482 | UB2E1_MOUSE | Mus musculus (Mouse) | Ube2e1 Ubce5 Ubcm3 | Detail |
| Q93571 | UBC25_CAEEL | Caenorhabditis elegans | ubc-25 F25H2.8 | Detail |
| Q17750 | UFL1_CAEEL | Caenorhabditis elegans | ufl-1 C06G3.9 | Detail |
| Q5R7J6 | UBE2N_PONAB | Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii) | UBE2N | Detail |
| O74201 | UBC2_CANAL | Candida albicans (strain SC5314 / ATCC MYA-2876) (Yeast) | UBC2 RAD6 CAALFM_C703870WA CaO19.7195 | Detail |
| Q921J4 | UBE2S_MOUSE | Mus musculus (Mouse) | Ube2s E2epf | Detail |
| P78717 | UBC2_NECHA | Nectria haematococca | UBC2 RAD6 | Detail |
| Q6BU36 | UBC2_DEBHA | Debaryomyces hansenii (strain ATCC 36239 / CBS 767 / JCM 1990 / NBRC 0083 / IGC 2968) (Yeast) (Torulaspora hansenii) | UBC2 DEHA2C13904g | Detail |