Method for enzyme immunoassay and peptide-enzyme conjugate, its lyophilizate, antibody and kit therefor
申请人:Takeda Chemical Industries, Ltd.
公开号:EP0111216A2
公开(公告)日:1984-06-20
In an enzyme immunoassay when a specific antibody produced by contacting a peptide essential to the formation of a specific antibody to a peptide antigen, a freeze-dried material of β-D-galactosidase-enzyme conjugate or a peptide-enzyme conjugate prepared by coupling a labeling enzyme with a peptide of the general formula:wherein R, is a peptide fragment consisting of 1 to 14 amino acid residues including Gly in the 14-position of the peptide Ala1-Pro2-Pro3-Pro4-Ser5-Leu6-Pro7-Ser8-Pro9-Ser10-Arg11-Leu12-Pro13-Gly14 is used, a high reproducibility of the result of the enzyme immunoassay is obtained.
在一种酶免疫测定中,当特异性抗体产生于与肽抗原形成特异性抗体所必需的肽接触时,将β-D-半乳糖苷酶-酶结合物的冻干材料或将标记酶与通式如下的肽偶联而制备的肽-酶结合物:其中 R 是由 1 至 14 个氨基酸残基组成的肽片段,包括肽 Ala1-Pro2-Pro3-Pro4-Ser5-Leu6-Pro7-Ser8-Pro9-Ser10-Arg11-Leu12-Pro13-Gly14 的 14 位上的 Gly,使用这种肽片段可获得高重复性的酶免疫测定结果。