Expressome may refer to: A supramolecular complex consisting of RNA polymerase and a trailing ribosome linked by a shared mRNA. The expressome complex mediates a mechanism of gene expression regulation termed transcription-translation coupling. The whole set of gene expression in a cell, tissue, organ, organisms, and species. Expressome is a slightly larger concept than transcriptome. The transcriptome is the set of transcripts, while expressome includes transcripts, proteins and other ligands (abundance or concentration). See also Bioinformatics DNA microarray Gel electrophoresis Mass spectrometry Protein sequencing Systems biology Expressomics List of omics topics in biology External links Bioinformatics Journal Gene expression References