Target intelligence / Profile preview

Disulfide Bonds in Proteins (S-S Bonds)

Target: S-S Bonds
Molecular classification: Post-translational modification, Protein structural motif

Overview

Disulfide bonds are covalent links formed between cysteine residues in proteins. They contribute to protein stability, folding, and function, particularly in allergens and regulatory proteins. Their disruption can affect protein activity and allergenicity.

Other names: Disulfide bridgesS-S linkagesCystine bonds

Mechanism of action

Reducing agents disrupt disulfide bonds, leading to protein denaturation or altered function. Oxidizing agents promote disulfide bond formation.

Biological functions

Protein foldingProtein stabilityAllosteric regulationEnzyme catalysisImmune response (allergenicity)

Disease associations

AllergyAutoimmune diseasesThrombosisVarious diseases due to protein misfolding or instability

Safety considerations

N/A - Disulfide bonds are a feature of proteins, not a therapeutic target themselves, so there are no direct safety concerns. However, manipulating disulfide bonds can alter protein function with unpredictable consequences.

Interacting drugs

Reducing agents (e.g., DTT, TCEP)

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