Abstract: The present invention relates to a method for obtaining an intron-tagged pool of cells representing and/or comprising tagged introns. Furthermore, the present invention relates to a pool of cells that may be obtainable by said method, in particular an intron-tagged pool of cells. The present invention furthermore provides for a method for automated recognition of the identity of the tagged intron(s) comprised in the genome of an intron-tagged cell within an intron-tagged pool of cells and a method for assessing the effect of a perturbation on the proteome and/or gene expression levels of an intron-tagged cell within an intron-tagged pool of cells.

Abstract: The present invention relates to a method for monitoring the effect of an environmental factor on the proteome of a cell. Furthermore, cell populations are provided that comprise multiple cells each comprising an inserted tag sequence in an intron of said cell, wherein the tag is inserted in-frame with the preceding exonic sequence and wherein the intron into which the tag is inserted is different between cells.