| Protein Structure - PDB | | UniProt ID | PDB ID | Strain | Moleculel | Fragment | | O95155 | 3l1z | B | UBIQUITIN CONJUGATION FACTOR E4 B | U BOX DOMAIN, RESIDUES 1208-1302 | | O95155 | 2kre | A | UBIQUITIN CONJUGATION FACTOR E4 B | UNP RESIDUES 1208-1302 | | O95155 | 3l1x | A | UBIQUITIN CONJUGATION FACTOR E4 B | U BOX DOMAIN, RESIDUES 1208-1302 | |