>6r2g_A mol:protein length:182 Single-chain protein mimetics of the N-terminal heptad-repeat region of gp41ARQELSGIVQKQNNLLRQIEAQQHLLQLTVSKIKQLQARILAVERYLKDQQLGKGNQPQQDKLYREVALIRAQLQKIESETLQLLHQQAEIERELNNQEQEIGSLKQRGLIDGPLLSGIDQQQNNLKRAIEAQKHLLQLTVWGIKQLQARILTVERYLKDQQLGGGGSHHHHHHLEHHHHHH