HealthMap

Copper-Dependent Enzymes and Elastin Cross-Linking

• The specific copper enzyme responsible for maintaining structural elastin cross-links is lysyl oxidase.
• Lysyl oxidase is a crucial cuproenzyme (copper-containing enzyme) that requires adequate copper status to function correctly in connective tissue metabolism.
• This enzyme acts by oxidative deamination of specific lysine residues in precursors of collagen and elastin, initiating the formation of vital cross-links that provide tensile strength and elasticity to arterial walls, lung tissue, skin, and bones.
• A functional deficiency or imbalance involving copper can impair lysyl oxidase activity, leading to compromised structural integrity in connective tissues throughout the body.