Assertion: cysteine | /r/HasProperty | introduced unregulated
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Source sentences:
text: Cysteine is a major component of enzymes or signalling proteins and thiol modifications are used in many instances to regulate enzyme activity and function, e.g. via the inactivation of metal-sulphur clusters56, but can also cause significant issues if introduced unregulated, especially considering potentially irreversible modifications such as sulfonic acid57,58.