As a reducing and deprotecting agent for sulfhydrylated DNA; DTT is also often used for the reduction of disulfide bonds in proteins, and can be used to block intramolecular or intermolecular disulfide bonds in proteins formed between cysteines in proteins
Dithiothreitol (DTT) is a powerful reducing agent widely utilized in biochemical research and pharmaceutical manufacturing to cleave disulfide bonds. Its core function relies on the formation of stable cyclic disulfides, maintaining protein structures in reduced states. The compound features the molecular formula C4H10O2S2 and is identified by CAS number 3483-12-3.
DTT exhibits toxicity upon ingestion and skin contact; appropriate PPE including gloves and goggles is mandatory. Storage requires sealed containers under inert atmosphere at temperatures below 25°C to prevent oxidation. It is strictly limited to industrial and laboratory use, not approved for direct clinical administration as a therapeutic drug.