FREMGANGSMÅDE TIL PROTEINVISNING

摘要

The present invention relates to methods for screening a polypeptide for desired activity against a target molecule. In particular, the present invention relates to methods for screening a polypeptide for desired activity against a target molecule by expressing the polypeptide in a Gram-negative bacterial cell and permeabilising the cell. The invention also relates to methods of packaging gene libraries in a bacterial cell.