Provided are cyclized peptides with a constrained region(s) having an &agr;-helical conformation. Constrained helical peptides having amino acid sequences from HIV gp41 are provided, as is their use in preparing antibodies that prevent viral membrane fusion. Also provided are methods for making such cyclized peptides.
提供了具有约束区域的环状肽,其具有α-螺旋构象。提供了具有来自HIV gp41的
氨基酸序列的约束螺旋肽,以及它们在制备能够预防病毒膜融合的
抗体中的应用。还提供了制备这种环状肽的方法。