>1jbb_B mol:protein length:153 ubiquitin conjugating enzyme E2-17.5 KDA MASLPKRIIKETEKLVSDPVPGITAEPHDDNLRYFQVTIEGPEQSPYEDGIFELELYLP DDYPMEAPKVRFLTKIYHPNIDRLGRICLDVLKTNWSPALQIRTVLLSIQALLASPNPN DPLANDVAEDWIKNEQGAKAKAREWTKLYAKKKPE