Copper-dependent metalloenzyme

The phrase "Copper-dependent catalytic reactions" refers not to a single molecular target or receptor, but to a broad class of enzymes whose catalytic activity depends on copper ions. These copper-dependent metalloenzymes are found throughout nature and are responsible for a wide array of biological processes, including oxidation–reduction (redox) reactions, electron transfer, oxygen transport, oxygenation, halogenation, and peptide side-chain cross-linking[6][1][2][5]. Well-characterized classes include oxidases, such as catechol oxidases, and more novel families, such as DUF3328-domain halogenases and BURP-domain peptide cyclases, all of which use copper ions in their active sites to catalyze challenging chemical transformations[1][2][7][5]. The diversity of this group and its involvement in fundamental biochemical reactions make "Copper-dependent catalytic reactions" a functional description, not a unique target, and thus it would not be considered a canonical drug target or biomarker itself. Instead, individual copper-dependent enzymes (for example, laccase, tyrosinase, peptidylglycine alpha-amidating monooxygenase, or DUF3328-domain halogenase) would be considered drug targets only in specific biological contexts[6][1][2][3][5][7].

Other names

Copper-dependent catalytic enzymeCopper enzymeBinuclear copper enzymeCopper-containing enzyme

Redox catalysis via copper ion(s) at the active site; Oxygen activation; Substrate oxidation or halogenation