2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. Phosphatase

Phosphatase

Phosphatase

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Phosphatases are enzyme that remove a phosphate group from a protein. Protein tyrosine phosphatases (PTPs) comprise a diverse family of transmembrane and cytoplasmic enzymes. PTPs play an important role in regulating the proliferative activity of cells and the integrity of cell-cell and cell-matrix contacts. Protein tyrosine phosphatase 1B (PTP1B) is a non-receptor PTP frequently associated with the endoplasmic reticulum and vesicles subjacent to the plasma membrane. PTP1B as a key negative regulator of leptin receptor pathways has been an attractive therapeutic target for the treatment of type 2 diabetes mellitus and obesity. Four major serine/threonine-specific protein phosphatase catalytic subunits are present in the cytoplasm of animal cells. Three of these enzymes, PP1, PP2A, and PP2B, are members of the same gene family, while PP2C appears to be distinct.The alkaline phosphatases comprise a heterogeneous group of enzymes that are widely distributed in mammalian cells. Acid phosphatase enzymes catalyze the hydrolysis of phosphate monoesters following the general equation.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-Z8754
    Tacrolimus 8-epimer
    Tacrolimus anhydrous 8-epimer (Tacrolimus EP impurity D) is a l-pipecolic acid macrolide lactone, an important immunosuppressive agent that blocks T cell proliferation in vitro by inhibiting the generation of several lymphokines, especially IL-2.
    Tacrolimus 8-epimer
  • HY-139641
    PTP1B-IN-14
    		Inhibitor
    PTP1B-IN-14 is a selective PTP1B inhibitor (IC50 = 0.72 μM) targeting the allosteric site.
    PTP1B-IN-14
  • HY-B0537AS
    Pentamidine-d4 dihydrochloride
    		Inhibitor 98.49%
    Pentamidine-d4 (dihydrochloride) is the deuterium labeled Pentamidine dihydrochloride. Pentamidine dihydrochloride (MP-601205 dihydrochloride) is an antimicrobial agent and interferes with DNA biosynthetics. Pentamidine dihydrochloride inhibits parasite Leishmania infantum with an IC50 of 2.5 μM. Pentamidine dihydrochloride is a potent and selective protein tyrosine phosphatases (PTPases) and phosphatase of regenerating liver (PRL) inhibitor. Pentamidine dihydrochloride has the potential for Gambian trypanosomiasis, antimony-resistant leishmaniasis, and Pneumocystis carinii pneumonia treatment. Antitumor and antibacterial activities.
    Pentamidine-d<sub>4</sub> dihydrochloride
  • HY-N6650
    Isotanshinone IIA
    		98.0%
    Isotanshinone IIA, an abietane-type diterpene metabolite, could non-competitively inhibit Protein Tyrosine Phosphatase 1B (PTP1B) activity with an IC50 0f 11.4 μM.
    Isotanshinone IIA
  • HY-139640
    PTP1B-IN-13
    		Inhibitor
    PTP1B-IN-13 is a selective PTP1B inhibitor targeting the allosteric site with an IC50 value of 1.59 μM.
    PTP1B-IN-13
  • HY-125108
    PHPS1 sodium
    		Inhibitor 99.93%
    PHPS1 sodium is a potent and selective Shp2 inhibitor with Kis of 0.73, 5.8, 10.7, 5.8, and 0.47 μM for Shp2, Shp2-R362K, Shp1, PTP1B, and PTP1B-Q, respectively.
    PHPS1 sodium
  • HY-P10167
    11R-CaN-AID
    		Inhibitor
    11R-CaN-AID is a potent and cell permeant inhibitor of calcineurin.
    11R-CaN-AID
  • HY-115760
    Okadaic acid ammonium salt
    		Inhibitor 99.9%
    Okadaic acid ammonium salt, a marine toxin, is an inhibitor of protein phosphatases (PP). Okadaic acid ammonium salt has a significantly higher affinity for PP2A (IC50=0.1-0.3 nM), and inhibits PP1 (IC50=15-50 nM), PP3 (IC50=3.7-4 nM), PP4 (IC50=0.1 nM), PP5 (IC50=3.5 nM), but does not inhibit PP2C. Okadaic acid ammonium salt increases of phosphorylation of a number of proteins by inhibiting PP, and acts as a tumor promoter. Okadaic acid ammonium salt induces tau phosphorylation.
    Okadaic acid ammonium salt
  • HY-N12613
    Sydowimide A
    		Inhibitor
    Sydowimide A is a potent inhibitor of Src homology region 2 domain-containing phosphatase-1 (SHP1), T-cell protein tyrosine phosphatase (TCPTP) and leukocyte common antigen (CD45), with IC50 values of 1.5, 2.4 and 18.83 μM, respectively.
    Sydowimide A
  • HY-N6651
    Isocryptotanshinone
    		Inhibitor ≥98.0%
    Isocryptotanshinone is a dual STAT3 and PTP1B (IC50 = 56.1 μM) inhibitor. Isocryptotanshinone inhibits STAT3 by binding to the STAT3 SH2 domain to block phosphorylation and nuclear translocation[1][2]. Isocryptotanshinone exerts its anti-proliferative effect via the induction of cell cycle arrest, apoptosis, and pro-death autophagy, through the regulation of STAT3, AKT/mTOR and MAPK signaling pathways. Isocryptotanshinone suppresses the xenograft gastric cancer (GC) tumor growth in BALB/c nude mice. Isocryptotanshinone can be used for cancer research, such as lung cancer, breast cancer and GC.
    Isocryptotanshinone
  • HY-P0320B
    EGF Receptor Substrate 2 (Phospho-Tyr5) acetate
    		99.00%
    EGF Receptor Substrate 2 (Phospho-Tyr5) acetate, a biologically active peptide, is a tyrosine phosphate substrate. EGF Receptor Substrate 2 (Phospho-Tyr5) acetate can be used to detect protein tyrosine phosphatases activity.
    EGF Receptor Substrate 2 (Phospho-Tyr5) acetate
  • HY-N15220
    Dipsacus saponin X
    		Activator 99.94%
    Dipsacus saponin X (compound 7) is a triterpenoid saponin that stimulates the proliferation of UMR106 cells and increases alkaline phosphatase activity in UMR106 cells (4 μM).
    Dipsacus saponin X
  • HY-170404A
    KF-52 enantiomer
    		Inhibitor 98.90%
    KF-52 enantiomer is an enantiomer of KF-52 (HY-170404). KF-52 is a phosphofructokinase-1 (PFK1) inhibitor.
    KF-52 enantiomer
  • HY-117085
    Lobaric acid
    		Inhibitor
    Lobaric acid is a depsipeptide metabolite isolated from Stereocaulon lichen with antioxidant, antiproliferative, antiviral and enzyme inhibitory activities. Lobaric acid scavenges superoxide free radicals (IC50=97.9 μM) and inhibits cancer cell proliferation (EC50 of 15.2-63.9 μg/mL against leukemia, colorectal, gastric, breast, ovarian, prostate, pancreatic and lung cancer cell lines). Lobaric acid inhibits protein tyrosine phosphatase 1B (PTP1B; IC50=0.87 μM for human recombinant enzyme) and 12(S)-HETE produced by 12(S)-lipoxygenase (IC50=28.5 μM). Lobaric acid (250 μM) also reduced pathological changes in tobacco leaves infected with tobacco mosaic virus (TMV).
    Lobaric acid
  • HY-115671
    KLH45b
    		Inhibitor 99.99%
    KLH45b is an inhibitor of DDHD2 (DDHD domain containing 2).
    KLH45b
  • HY-136595
    3,5-Difluoro-L-tyrosine
    		98.39%
    3,5-Difluoro-L-tyrosine is a functional, tyrosinase-resistant mimetic of tyrosine. 3,5-Difluoro-L-tyrosine can be used to analyze the substrate specificity of protein tyrosine phosphatases (PTPs).
    3,5-Difluoro-L-tyrosine
  • HY-W024644
    Hydroxyethylthio Vitamine K3
    Hydroxyethylthio Vitamin K3 is a Cdc25 phosphatase inhibitor, with IC50 values of 4.56 μM and 23.63 μM for Cdc25A and Cdc25B, respectively. Hydroxyethylthio Vitamin K3 can be used in tumor research.
    Hydroxyethylthio Vitamine K3
  • HY-111488
    ML 400
    		Inhibitor 99.63%
    ML 400 is a potent and selective LMPTP inhibitor with an IC50 value of 1680 nM. ML 400 inhibits adipogenesis.
    ML 400
  • HY-118529
    JUN-1111
    		Inhibitor 98.57%
    JUN-1111 is an irreversible and selective Cdc25 phosphatase inhibitor with IC50 values of 0.38, 1.8, 0.66, 28, 37 µM for Cdc25A, Cdc25B, Cdc25C, VHR, PTP1B, respectively. JUN-1111 induces cell cycle arrest at G1 and G2/M phases. JUN-1111 decreases the expression of phosphoCdk1.
    JUN-1111
  • HY-121932
    Naphthol AS-BR
    		98.0%
    Naphthol AS-BR is a substrate for the histochemical demonstration of acid and alkaline phosphatase.
    Naphthol AS-BR
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity