Fast and exhaustive method for selecting a prey polypeptide interacting with a bait polypeptide of interest: application to the construction of maps of interactors polypeptides

摘要

The present invention is directed to a method for selecting a prey polypeptide that is able to interact with a bait polypeptide of interest, to a prey polynucleotide encoding the prey polypeptide as well as to the prey polypeptide itself. The invention also concerns plasmids used for performing the method of the invention as well as prokaryotic or eukaryotic recombinant host organisms containing such plasmids and also a collection of said recombinant host organisms consisting in a DNA library, such as a collection of recombinant haploid Saccharomyces cerevisiae. Finally, the invention is also directed to a technical medium containing the whole information concerning the interactions between metabolically related bait and prey polypeptides and/or polynucleotides coding for bait and prey polypeptides.