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.[1][2][3]
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).