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"Metallomics" redirects here. For the journal, see Metallomics (journal).

The term metallome has been introduced by R.J.P. Williams[1] by analogy with proteome as distribution of free metal ions in every one of cellular compartments. Subsequently, the term metallomics has been coined as the study of metallome. Szpunar [2] defined metallomics as "comprehensive analysis of the entirety of metal and metalloid species within a cell or tissue type". Therefore, metallomics can be considered a branch of metabolomics, even though the metals are not typically considered as metabolites.

Hiroki Haraguchi[3] gave an alternative definition of "metallomes" as metalloproteins or any other metal-containing biomolecules, and "metallomics" as a study of such biomolecules. In the study of metallomes the transcriptome, proteome and the metabolome will constitute the whole metallome. A study of the metallome is done to arrive at the metallointeractome

The metallotranscriptome [4] can be ideally defined as the map of the entire transcriptome in the presence of biologically or environmentally relevant concentrations of an essential or toxic metal, respectively metallometabolome would constitute the complete pool of small metabolites in a cell at any given time and this would give rise to the whole metallointeractome and knowledge of this would be of paramount importance in comparative metallomics dealing with toxicity and drug discovery.[4]

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