Various carboxyl-terminal peptides of hCG-β were prepared from the corresponding blocked peptides by TFA treatment followed by hydrogenation. The prepared peptides were tested for inhibitory action on the binding between 125I-hCG and the antiserum against the carboxyl-terminal portion of hCG-β. The results suggest that an antigenic site of this antiserum may exist around the amino-terminal portion of the carboxylterminal hexadecapeptide.
通过TFA处理和氢化,从相应的封闭肽中制备了hCG-β的各种羧基末端肽。对制备的肽进行了测试,以确定其对125I-hCG与抗hCG-β羧基末端部分的抗血清之间的结合的抑制作用。结果表明,这种抗血清的抗原位点可能存在于羧基末端十六肽的
氨基末端部分周围。