Manganese ion cofactor (Mn²⁺)

Manganese ion cofactor, generally in the divalent Mn²⁺ state, is a critical inorganic component required by a broad array of enzymes that facilitate diverse biochemical functions. Its roles are indispensable in mitochondrial antioxidant defense (MnSOD), metabolic pathways (carbohydrate, amino acid and cholesterol metabolism), bone formation and turnover (via glycosyltransferases, prolidase), neurotransmitter synthesis, glycosylation, and cell signaling[1][2][3][6][7]. Manganese deficiency and toxicity both have significant clinical implications, particularly in neurodevelopmental and neurodegenerative diseases[5], metabolic disorders, and in wound and bone health[1][6]. However, as an elemental ion rather than a discrete molecular protein, manganese ion cofactor is not itself a drug target but is critical for the activity of many actual protein targets. If structured target-level data is required, the specific manganese-dependent enzyme (e.g., manganese superoxide dismutase, arginase, pyruvate carboxylase) should be used as the canonical molecular target instead.

Other names

manganese cofactorMn²⁺divalent manganese ionmanganese(II) ion

Not directly targetable pharmaceutically; in enzyme contexts, Mn²⁺ acts as a metal ion cofactor essential for catalytic activity, stabilizing charge, or forming part of metalloenzyme clusters (such as the oxygen-evolving complex in photosynthesis or MnSOD for antioxidant protection)