Immunoassays

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 16/16 (2006.01) C07K 16/02 (2006.01) C07K 16/04 (2006.01) G01N 33/53 (2006.01) G01N 33/531 (2006.01) C07K 1/113 (2006.01) C07K 14/415 (2006.01) C07K 14/47 (2006.01)

Patent

CA 2473101

This invention provides a method wherein a protein sparingly soluble in water, or a protein in a hardly extractable state, is detected sharply and easily in subsequent immunoreaction while high efficiency of extraction from a sample is maintained. Disclosed is a highly sensitive and easy immunoassay characterized in that a water-sparingly-soluble protein in a sample, or a protein in a hardly extractable state, is extracted/solubilized with an aqueous solvent containing an ionic surfactant at relatively high concentration, and then the protein in the extract is detected directly by an antibody raised against the protein previously denatured with the ionic surfactant.

L'invention décrit un procédé selon lequel une protéine difficilement soluble dans l'eau ou difficilement extractible est détectée de manière sensible et commode par réaction immunologique avec une efficacité d'extraction très élevée d'un échantillon. Plus précisément, l'invention décrit un essai immunologique hautement sensible et commode caractérisé en ce que une protéine, contenue dans un échantillon, difficilement soluble dans l'eau ou difficilement extractible, est extraite/solubilisée au moyen d'un milieu aqueux contenant un tensioactif ionique présentant une concentration relativement élevée, puis détectée directement dans l'extrait au moyen d'un anticorps obtenu agissant contre une protéine résultant de la dénaturation de ladite protéine par le tensioactif ionique.

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