The UBE2G1 protein is an important participant in the ubiquitin-proteasome system, acting as an E2 ubiquitin-conjugating enzyme to promote the attachment of ubiquitin to different protein substrates. In vitro, UBE2G1 exhibits catalytic ability in “Lys-48” and “Lys-63” linked polyubiquitination reactions. UBE2G1 Protein, Human is the recombinant human-derived UBE2G1 protein, expressed by E. coli , with tag free.