. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "ubc9_human"^^ . "UBE2I"^^ . "p18"^^ . "SUMO-protein ligase"^^ . "Ubiquitin-protein ligase I"^^ . "Ubiquitin carrier protein I"^^ . "Ubiquitin carrier protein 9"^^ . "Ubiquitin-conjugating enzyme E2 I"^^ . "UBC9"^^ . "UBCE9"^^ . . "SUMO-conjugating enzyme UBC9"^^ . .