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Disulfide Bond in Lens Protein

Molecular classification: Post-translational modification, Protein modification

Overview

Disulfide bonds are covalent linkages formed between cysteine residues in lens proteins, primarily crystallins. While contributing to protein stability and structure, aberrant formation or exchange is implicated in age-related changes and cataract formation. These bonds can be formed co-translationally or post-translationally under oxidative stress, leading to protein aggregation and lens opacification. Therapeutic strategies may target the prevention or disruption of aberrant disulfide linkages.

Mechanism of action

Disulfide bond disruptors (potential therapeutic)

Biological functions

Protein foldingProtein stabilityStructural stabilization

Disease associations

CataractAge-related macular degenerationProtein aggregation diseases

Safety considerations

Non-specific disruption of disulfide bonds could affect other proteins.Potential for off-target effects.

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