Magnesium ion-dependent cellular targets

Magnesium ion-dependent cellular targets represent a broad and essential class of proteins, including enzymes, ion channels, and transporters, that require divalent magnesium (Mg2+) for their structural stability or catalytic activity (Romani, 2011; de Baaij et al., 2015). Magnesium serves as a critical cofactor for over 600 enzymes, particularly those involved in energy metabolism and phosphate transfer, such as kinases, phosphatases, and ATPases, where it coordinates with the phosphate groups of ATP to facilitate hydrolysis (Romani, 2011; StatPearls, 2023). Beyond its enzymatic roles, magnesium is vital for the stabilization of nucleic acid structures and the assembly of ribosomes, thereby regulating DNA replication, transcription, and protein synthesis (de Baaij et al., 2015; NIH, 2022). In the central nervous system, magnesium provides a characteristic voltage-dependent block of the N-methyl-D-aspartate (NMDA) receptor, a mechanism essential for preventing excitotoxicity and maintaining synaptic plasticity (de Baaij et al., 2015; PubChem, 2024). Dysregulation of these magnesium-dependent targets is implicated in a wide range of pathologies, including cardiovascular diseases, type 2 diabetes, and neurodegenerative disorders (de Baaij et al., 2015; StatPearls, 2023). Therapeutic strategies targeting these systems include direct magnesium supplementation to correct deficiencies and the use of pharmacological agents that modulate specific magnesium-binding sites, such as NMDA receptor antagonists and certain anticancer antibiotics (de Baaij et al., 2015; PubChem, 2024).

Other names

Magnesium-dependent enzymesMagnesium-dependent proteinsMagnesium-dependent transportersMg2+-dependent targets

Magnesium acts as a critical divalent cation cofactor for over 600 enzymes, including kinases, phosphatases, and ATPases. It stabilizes the structure of nucleic acids and ribosomes, and regulates the gating of ion channels like the NMDA receptor through a voltage-dependent block.