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proteome (plural proteomes) (biochemistry, genetics) The complete set of proteins encoded by a particular genome. [from 20th c.]
Proteome analysis is the investigation of all the proteins present in a cell, tissue or organism at any one time. Since cells are constantly responding to their environment, and the proteins are the workhorses of the cell, the proteome is also changing-reflecting the life of the cell.owever, the genome is only a source of information. In order to function, it must be expressed. The transcription of genes is the first stage of gene expression and is followed by the translation of messenger RNA to produce proteins. The proteome is the complete set of proteins produced by the genome at any one time.