>2Z2T_1|Chains A, B, C|gp41 fragment N36|null XSDIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILX >2Z2T_2|Chains D, E, F|Fusion inhibitor peptide SC34EK|null XWLEWDRKIEEYTKKIEELIKKSQEQQEKNEKELKX