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XMU-MP-1 MST1/2 inhibitor, potent and selective

Catalog No.A8735
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Sample solution is provided at 25 µL, 10mM.

Product Citations

1. Yuan L, Liu X, et al. "Optimized HepaRG is a suitable cell source to generate the human liver chimeric mouse model for the chronic hepatitis B virus infection." Emerg Microbes Infect. 2018 Aug 10;7(1):144. PMID:30097574
2. Yuan L, Liu X, et al. "A Chimeric Humanized Mouse Model by Engrafting the Human Induced Pluripotent Stem Cell-Derived Hepatocyte-Like Cell for the Chronic Hepatitis B Virus Infection." Front Microbiol. 2018 May 8;9:908. PMID:29867819

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Chemical Properties

Cas No. 2061980-01-4 SDF Download SDF
Synonyms N/A
Chemical Name 4-((5,10-dimethyl-6-oxo-6,10-dihydro-5H-pyrimido[5,4-b]thieno[3,2-e][1,4]diazepin-2-yl)amino)benzenesulfonamide
Canonical SMILES O=S(C1=CC=C(NC2=NC=C3C(N(C)C(C=CS4)=C4C(N3C)=O)=N2)C=C1)(N)=O
Formula C17H16N6O3S2 M.Wt 416.48
Solubility ≥41.6mg/mL in DMSO with gentle warming Storage Store at -20°C
Shipping Condition Evaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.


XMU-MP-1 is a reversible, potent and selective inhibitor of MST1/2 with IC50 values of 71.1 ± 12.9 nM and 38.1 ± 6.9 nM, respectively [1].

The Sterile 20-like kinases MST1 and MST2 are key components of the Hippo signaling cascade that play an important role in tissue regeneration, stem cell self-renewal and organ size control [1].

XMU-MP-1 is a potent, selective and ATP-competitive MST1/2 inhibitor. In ELISA-based high-throughput screening assay, XMU-MP-1 at 10 μM inhibited MST2 kinase activity by more than 50% and dose-dependently inhibited the phosphorylation of MOB1 mediated by MST2. In human liver carcinoma (HepG2) cells, XMU-MP-1 (0.1 to 10 μM) dose-dependently reduced the phosphorylation of endogenous MOB1, LATS1/2, and YAP. Also, in a variety of cell lines, including human osteosarcoma (U2OS), human colorectal adenocarcinoma (SW480) and human pleomorphic hepatocellular carcinoma (SNU-423), XMU-MP-1 inhibited H2O2-stimulated MOB1 phosphorylation and MST1/2 autophosphorylation [1].

In wild-type mice, treatment with XMU-MP-1 once a day before a two-thirds partial hepatectomy followed by daily treatment for 7 days. XMU-MP-1 significantly reduced the phosphorylation levels of MOB1 and YAP. After partial hepatectomy, XMU-MP-1 substantially increased liver regeneration. In CCl4-induced liver chronic injury mice treatment with XMU-MP-1 (1 mg/kg) had a small amount of collagen deposition, suggesting XMU-MP-1 is capable of partially rescuing fibrosis [1].

1.  Fuqin Fan, Zhixiang He, Lu-Lu Kong, et al. Pharmacological targeting of kinases MST1 and MST2 augments tissue repair and regeneration. Science Translational Medicine 17 Aug 2016: Vol. 8, Issue 352, pp. 352ra108.