Copper-dependent enzymes and copper-binding biomolecules (Cu-proteins)

Copper-dependent enzymes and copper-binding biomolecules, collectively known as cuproproteins, are essential proteins that utilize copper as a redox-active cofactor for a wide range of biochemical reactions (Source: NIH). This group includes vital enzymes such as cytochrome c oxidase, which is the terminal complex in the mitochondrial electron transport chain, and superoxide dismutase 1 (SOD1), which protects cells from oxidative damage (Source: UniProt). Other key members include lysyl oxidase (LOX), necessary for connective tissue integrity, and tyrosinase, which is essential for melanin production (Source: PubMed). These biomolecules are central to the pathogenesis of copper metabolism disorders like Wilson disease and Menkes disease, and they are increasingly recognized for their roles in cancer metastasis and neurodegenerative diseases like Alzheimer's (Source: StatPearls). Therapeutic interventions targeting this group include copper chelators like penicillamine and trientine to treat overload, as well as copper ionophores like elesclomol that modulate intracellular copper levels for anti-cancer effects (Source: PubChem). Because copper is both essential and potentially toxic, these proteins are strictly regulated to maintain cellular homeostasis and prevent oxidative stress.

Other names

CuproproteinsCuproenzymesCopper-binding proteinsCopper-dependent proteins

Drugs targeting these biomolecules primarily function through chelation to facilitate copper excretion, ionophore-mediated redistribution of intracellular copper, or direct inhibition of copper-dependent enzymatic activity to disrupt pathological processes like angiogenesis or oxidative stress (Source: PubMed).