Divalent cation

Divalent cations are a class of positively charged ions with a +2 charge, including biologically essential metals such as calcium (Ca²⁺), magnesium (Mg²⁺), zinc (Zn²⁺), and manganese (Mn²⁺)[9]. They are not a specific molecule or "target" but rather a category of ions fundamental to a wide range of biochemical and cell biological processes[1][3][6]. Divalent cations function in structural stabilization of proteins, nucleic acids, and membranes; serve as enzyme cofactors; regulate signaling pathways; and modulate the physicochemical properties of biomolecular condensates[1][3][4][6]. Their homeostasis is tightly regulated, with profound physiological and pathophysiological consequences if disrupted[2][3]. While drugs can modulate biological processes by targeting cation channels/transporters or through chelation of these ions, divalent cations themselves are not typical drug targets but essential effectors or modulators of many molecular targets. **Note:** "Divalent cations" is not a single molecular target but a chemical class. For structured database purposes, this is not a valid target entry and is too generic; each specific cation (e.g., Calcium ion, Magnesium ion) should be curated separately for biomedical databases[9].

Other names

Divalent cationsdivalent metal ions2+ ionsCa2+Mg2+Zn2+Mn2+ (but these are specific ions within the class)

Chelation removes cations from availability, disrupting cation-dependent processes Modulation of cation transporters or channels alters intracellular or extracellular cation concentration