Protein Serine-Threonine Phosphatase

Based on the consistency of the amino acid sequence and the similarity of the three-dimensional structure, protein phosphatases are divided into three families: PTP, PPP, and PPM. Among the PTP family, there is also a type of protein phosphatase that can dephosphorylate serine-threonine residues.

Protein serine-threonine phosphatase is an enzyme that specifically hydrolyzes the serine-threonine phosphate bond on a protein substrate to dephosphorylate it, thereby regulating the function of the protein. Abnormalities in its expression or activity can cause changes in the biological behavior of cells. Research on protein serine-threonine phosphatase inhibitors helps to understand the mechanisms of cell growth, development, and regulation, and to find new ways to prevent and treat tumors.

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