>6SYF_1|Chains A, B, C, D|SUMO-conjugating enzyme UBC9|Homo sapiens (9606) GSGIALSRLAQERKAWRKDHPFGFVAVPTKNPDGTMNLMNWECAIPGAAGTPWAGGLFKLRMLFKDDYPSSPPKCKFEPPLFHPNVYPSGTVCLSILEEDKDWRPAITIKQILLGIQELLNEPNIQDPAQAEAYTIYAQNRVEYEKRVRAQAKKFAPS >6SYF_2|Chains E, G, I, K|ACE-LEU-ARG-LEU-ARG-GLY-CYS|Homo sapiens (9606) XLRLRGC >6SYF_3|Chains F, H, J, L|ACE-ILE-LYS-GLN-GLU|Homo sapiens (9606) XIKQE