Blake J, Helmeste D M, Li C H
Int J Pept Protein Res. 1985 Jun;25(6):575-9. doi: 10.1111/j.1399-3011.1985.tb02212.x.
Two analogs of human beta-endorphin (beta-EP) which contain cystine bridges, [Cys15-Cys26,Phe27,Gly31]-beta-EP (I) and [Cys16-Cys26,Phe27,Gly31]-beta-EP (II), were synthesized by the solid-phase method. Peptides I and II were shown to contain 2-2.5 times the opiate receptor binding activity of beta-endorphin. We also synthesized two analogs with reduced alkylated cysteine residues and these peptides, [Arg9,19,24,28,29 Cys(Cam)11,26,Phe27,Gly31] and [Arg9,19,24,28,29,Cys-(Cam)12,26,Phe27,Gly31], were shown to have approximately the same opiate receptor activity as beta-endorphin.
通过固相法合成了两种含有胱氨酸桥的人β-内啡肽(β-EP)类似物,即[Cys15-Cys26,Phe27,Gly31]-β-EP(I)和[Cys16-Cys26,Phe27,Gly31]-β-EP(II)。肽I和II显示出含有比β-内啡肽高2-2.5倍的阿片受体结合活性。我们还合成了两种具有还原烷基化半胱氨酸残基的类似物,这些肽,[Arg9,19,24,28,29 Cys(Cam)11,26,Phe27,Gly31]和[Arg9,19,24,28,29,Cys-(Cam)12,26,Phe27,Gly31],显示出与β-内啡肽大致相同的阿片受体活性。