>9YTQ_1|Chains A, B, C, D|Designed tetrameric HC4 protein.|synthetic construct (32630) SKTDKLLELAKLELILNFFLLASNANITKESFLIAHKAWHKALNKLYEIDKELAKEYFYYMHSFSIPYYEKLGFKDVAEWHKVMVEYFKVGDKDEALELHNEGHKALRAGDEEKFAALLKKARELIEKAKSAENLYFQ