Abstract: 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.

Abstract: 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.

Abstract: 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 polypepetide as well as to 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 consisitng 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 interaction between metabolically related bait and prey polypeptides and/or polynucleotides coding for bait and prey polypeptides.

Abstract: This invention relates to methods for the identification of nucleic acids by direct hybridization to high-density oligonucleotide arrays. The methods of this invention comprise the steps of: (1) screening a DNA library, such as an S. cerevisiae genomic DNA library, by performing a double hybrid screening method with a recombinant vector containing a DNA insert encoding a candidate protein of interest and then selecting the clones from the DNA library that code for proteins that interact with the candidate protein of interest; and (2) hybridizing the DNA inserts contained in the clones that have been selected in step (1) using an oligonucleotide probe matrix wherein the probe locations on the host genome cover all of the coding sequences, determining the hybridization location and consequently, the gene coding for a specific protein that interacts with the candidate protein of interest in the double hybrid screening system.

Abstract: 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.