Patent ID: 7045363
Filing Date: 2006-05-16
Classification: C07K,C12N,Y10S

Abstract:
1. An agglutination immunoassay comprising a polypeptide, wherein said immunoassay comprises: (a) preparing a nucleic acid-bound polypeptide by binding a nucleic acid to said polypeptide through a nucleic acid-binding motif in said polypeptide, and fixing said nucleic acid-bound polypeptide on the surface of particles; (b) contacting the particles obtained in (a) with a sample, wherein said sample may contain an antibody to an antigen, wherein said antigen is said polypeptide fixed on the surface of solid particles; and (c) measuring agglutination images of said particles caused by formation of antigen-antibody complex wherein said nucleic acid is bound to at least one terminus of said polypeptide, and wherein said nucleic acid-bound polypeptide further comprises a nucleic acid-binding motif through which said nucleic acid is bound to at least one terminus of said polypeptide.