Patent ID: 7595202
Filing Date: 2009-09-29
Classification: G01N

Abstract:
1. A measurement system including a material A, a material B, a first reporter R 1 , a second reporter R 2 , a material C and a material D for use in a measurement method for a subject material X to be measured, wherein the material A, the first reporter R the measurement method using a first reagent comprising the material A that specifically bonds to the subject material X to be measured, the material A being labeled with the first reporter R wherein the first reagent includes the material C that bonds to the first reporter R wherein the second reagent includes the material D that bonds to the second reporter R wherein the material A or the material B comprises a material or part thereof selected from the group consisting of antigen, antibody, lectin, lectin-binding carbohydrate, tumor marker, cytokine, cytokine receptor, hormone, hormone receptor, cell adhesion molecule, cell adhesion molecule ligand, nucleic acid, sugar chain, lipid, and hapten, and the material C and the material D are leucine zipper peptides, and the affinity between the material C and the material D is less than both the affinity of the subject material X for the material A and the affinity of the subject material X for the material B, wherein the first reagent, the second reagent, and the subject material X to be measured form a reaction complex, and wherein due to binding based on the affinity in the reaction complex of the material C of the first reagent with the material D of the second reagent, the first reporter R