Protein Active Site Structure with Magnesium Ions - Molecular Visualization #1688798 (License: Personal Use)

This high-resolution molecular model depicts a protein’s functional core, where conserved acidic residues-Asp443, Asp498, and Glu478-coordinate two magnesium ions (Mg²⁺ A and B) critical for substrate binding and catalysis. The teal ribbons illustrate α-helices and β-sheets forming the scaffold that positions these residues precisely in 3D space. Such structures are commonly found in nucleotidyltransferases or polymerases.

Used in biochemistry, structural biology, and educational resources to illustrate enzyme mechanisms, metal ion dependence, and active site architecture; matches user intent for learning about protein function, metalloenzymes, or molecular modeling.