CHEMILUMINESCENT AND BIOLUMINESCENT ASSAYS FOR POLYADENYLIC-ACID AND APPLICATIONS TO DNA PROBE ASSAY AND IMMUNOASSAY

被引:0
作者
ARAKAWA, H
MAEDA, M
TSUJI, A
机构
[1] School of Pharmaceutical Sciences, Showa University, Tokyo, Hatanodm, Shinagawa
关键词
CHEMILUMINESCENCE; BIOLUMINESCENCE; POLYADENYLIC ACID; DNA PROBE ASSAY; IMMUNOASSAY;
D O I
10.2116/analsci.8.481
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We developed a chemiluminescent (CL) assay for polyadenylic acid (poly A) based on the enzymatic cycling reaction following the conversion to ATP by pyruvate kinase/polynucleotide phosphoryrase enzyme reaction. Poly A was also measured with the bioluminescent (BL) assay using luciferase from firefly Photinus pyralis. The detection limits of poly A by CL and BL assay were 10 amol and 2 amol, respectively. We prepared the biotinylated poly A using biotin hydrazide and glutaraldehyde as a bifunctional coupling reagent to apply the poly A assay to a general avidin-biotin reaction system. When the CL assay and the BL assay of biotinylated poly A are applied to the DNA probe assay of lambda-phage DNA and the immunoassay of thyroid-stimulating hormone (TSH) using avidin-biotin reaction as detection system, 500 pg assay-1 well of lambda-phage DNA and 3-mu-U ml-1 of TSH were determined.
引用
收藏
页码:481 / 485
页数:5
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