Reduction of immunoassay interference and chaperone-chaperone fusion polypeptide for stabilization

摘要

The invention concerns a fusion polypeptide comprising several molecules of folding helper polypeptides, comprising one multimerization domain, in particular Skp, and at least one molecule of SlyD or S1pA, wherein no further target polypeptide sequences are fused to said fusion polypeptide. The invention further concerns an immunoassay and the use of said fusion polypeptide in an immunoassay for reduction of interferences or minimizing false positive results or for stabilizing proteinaceous assay reagents. Further the invention concerns a reagent kit for use in an immunoassay comprising said fusion polypeptide.