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Protein tyrosine phosphatase (PTP) inhibitors block enzymes that remove phosphate groups from tyrosine residues. PTPs counterbalance tyrosine kinases, and the classical PTPs share a catalytic cysteine within a conserved active-site motif. Mice lacking PTP1B show increased insulin sensitivity, which made this enzyme a model target in metabolic signaling research. SHP099 and SHP394 are allosteric inhibitors of Src homology 2 domain-containing phosphatase 2 (SHP2), which relays signals from receptor tyrosine kinases. NSC 87877 acts at the catalytic sites of SHP1 and SHP2, and TCS 401 free base inhibits PTP1B. Alexidine dihydrochloride inhibits PTP localized to the mitochondrion 1 (PTPMT1), a phosphatase located in the inner mitochondrial membrane.
DSHN is a potent small heterodimer partner (SHP) activator that plays a critical role in regulating gene expression. It effectively inhibits Ccl2 expression and secretion through the inhibition of p65 activation of the Ccl2 promoter. DSHN is suitable for research applications in cancer studies, particularly in exploring the mechanisms of inflammation and tumor progression.
SHP1 Activator 1 is a potent activator of src homology-2 domain-containing protein tyrosine phosphatase 1 (SHP1), exhibiting an EC50 of 17.66 μM. This compound has demonstrated efficacy in inhibiting the proliferation of ABC-DLBCL cells and inducing apoptosis by targeting the STAT3 signaling pathway. Additionally, SHP1 Activator 1 emits blue and green fluorescence signals in MDA-MB-231 cells, making it suitable for use as a cell imaging agent in research applications.
