CELLULAR ENGINEERING, PROTEIN EXPRESSION PROFILING, DIFFERENTIAL LABELING OF PEPTIDES, AND NOVEL REAGENTS THEREFOR

摘要

The invention provides cellular transformation, directed evolution, and screening methods for creating novel transgenic organisms having desirable properties. Thus in one aspect, this invention relates to a method of generating a transgenic organism, such as a microbe or a plant, having a plurality of traits that are differentially activatable. Also, a method of retooling genes and gene pathways by the introduction of regulatory sequences, such as promoters, that are operable in an intended host, thus conferring operability to a novel gene pathway when it is introduced into an intended host. For example a novel man-made gene pathway, generated based on microbially-derived progenitor templates, that is operable in a plant cell. Furthermore, a method of generating novel host organisms having increased expression of desirable traits, recombinant genes, and gene products. Additionally, the invention provides novel methods for determining polypeptide profiles, and protein expression variations, which methods of simultaneously identifying and quantifying individual proteins in complex protein mixtures. Protein expression levels can be globally quantified.