A METHOD FOR DETECTING INTRACYTOPLASMIC PROTEIN/PROTEIN INTERACTIONS

摘要

The present invention provides a versatile and sensitive method for studying interaction of two peptides or polypeptides A and B within the cytoplasm of a host cell. The method is based on the use of two distinct chimeric polypeptides. The first chimeric polypeptide containing an aggregation domain fused to a polypeptide A and the second one containing a phenotype-associated functional domain fused to a second polypeptide B. When these chimeric polypeptides are co-expressed within a host cell allowing aggregation of the aggregation domain, the phenotype of said host cell depends on the entrapment of the phenotype-associated functional domain which only occurs when A and B interact with each other.