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Purity: ≥98%
GNE-6640, an analog of GNE-6776, is a novel potent and selective inhibitor of USP7 (ubiquitin-specific protease-7). It induces tumour cell death and enhances cytotoxicity with chemotherapeutic agents and targeted compounds, including PIM kinase inhibitors. Structural studies reveal that GNE-6640 non-covalently targets USP7 12 Å distant from the catalytic cysteine. GNE-6640 attenuates ubiquitin binding and thus inhibits USP7 deubiquitinase activity. GNE-6640 interacts with acidic residues that mediate hydrogen-bond interactions with the ubiquitin Lys48 side chain, suggesting that USP7 preferentially interacts with and cleaves ubiquitin moieties that have free Lys48 side chains. Deubiquitinase enzymes cleave ubiquitin from substrates and are implicated in disease; for example, ubiquitin-specific protease-7 (USP7) regulates stability of the p53 tumour suppressor and other proteins critical for tumour cell survival.
| Targets |
USP7 (IC50 = 0.75 μM); USP7 (IC50 = 0.43 μM); USP43 (IC50 = 20.3 μM); Ub-MDM2 (IC50 = 0.23 μM)
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| ln Vitro |
GNE-6640 encourages the natural ubiquitination of MDM2 through Lys48 (K48)-linked polyubiquitin chains, thereby guiding the process of proteasomal degradation13. GNE-6640 focuses on the p53, MDM2, and USP7 signaling pathways in cells. With an IC50 ≤ 10 μM, GNE-6640 reduces the viability of 108 cell lines. Combining GNE-6640 with DNA-damaging drugs like doxorubicin or cisplatin may trigger the p53 response and improve the effectiveness of USP7 inhibitors. GNE-6640 may cause the death of tumor cells. PIM kinase inhibitors and other targeted substances, such as chemotherapeutic agents, increase the cytotoxicity of GNE-6640[1].
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| References |
| Molecular Formula |
C20H18N4O
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| Molecular Weight |
330.39
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| Exact Mass |
330.15
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| Elemental Analysis |
C, 72.71; H, 5.49; N, 16.96; O, 4.84
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| CAS # |
2009273-67-8
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| Related CAS # |
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| Appearance |
Solid powder
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| SMILES |
CCC1=C(C(=NC=C1C2=CC3=C(C=C2)NN=C3)N)C4=CC=C(C=C4)O
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| InChi Key |
ZHYXJQQBKROZDX-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C20H18N4O/c1-2-16-17(13-5-8-18-14(9-13)10-23-24-18)11-22-20(21)19(16)12-3-6-15(25)7-4-12/h3-11,25H,2H2,1H3,(H2,21,22)(H,23,24)
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| Chemical Name |
4-[2-amino-4-ethyl-5-(1H-indazol-5-yl)pyridin-3-yl]phenol
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| Synonyms |
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| HS Tariff Code |
2934.99.03.00
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
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| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.0267 mL | 15.1336 mL | 30.2673 mL | |
| 5 mM | 0.6053 mL | 3.0267 mL | 6.0535 mL | |
| 10 mM | 0.3027 mL | 1.5134 mL | 3.0267 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
 Identification and characterization of USP7 inhibitors.Nature.2017 Oct 26;550(7677):534-538. |
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 Selectivity of USP7 inhibitors and synergy with PIM kinase inhibition.
USP7 inhibitors compete with ubiquitin binding to USP7.Nature.2017 Oct 26;550(7677):534-538. |
 USP7 preferentially binds and cleaves ubiquitin moieties with free K48 side chains.Nature.2017 Oct 26;550(7677):534-538. |
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