Questiomycin A
Based on 1 Customer Validation
Questiomycin A (Phx-3) is a GRP78 (cytoprotective endoplasmic reticulum chaperone) degrader and enhances the anticancer activity of Sorafenib. Questiomycin A is also an antimicrobial/antibiotic that can be obtained from the metabolite of Pseudomonas chlororaphis HT66. Questiomycin A can be used in research on biological control of cancer and plant diseases.
For research use only. We do not sell to patients.
- Purity: 98.20%
- CAS No.: 1916-59-2
- Formula: C12H8N2O2
- Molecular Weight:212.20
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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All Antibiotic Isoforms
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Biological Activity
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Grp78 |
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| CCRF-CEM | IC50 |
2 μM
Compound: 1
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Compound concentration required to reduce the cell proliferation of human acute T-lymphoblastic leukemia CCRF-CEM cells by 50%, using MTT method
Compound concentration required to reduce the cell proliferation of human acute T-lymphoblastic leukemia CCRF-CEM cells by 50%, using MTT method
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[PMID: 12431048] |
| CCRF-SB | IC50 |
1 μM
Compound: 1
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Compound concentration required to reduce the cell proliferation of human acute B-lymphoblastic leukemia CCRF-SB cells by 50%, using MTT method
Compound concentration required to reduce the cell proliferation of human acute B-lymphoblastic leukemia CCRF-SB cells by 50%, using MTT method
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[PMID: 12431048] |
| HeLa | IC50 |
2.7 μM
Compound: 1
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Compound concentration required to reduce the cell proliferation of cervix carcinoma Hela cells by 50%, using MTT method
Compound concentration required to reduce the cell proliferation of cervix carcinoma Hela cells by 50%, using MTT method
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[PMID: 12431048] |
| HEp-2 | IC50 |
1.8 μM
Compound: 1
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Compound concentration required to reduce the cell proliferation of larynx carcinoma cells by 50%, using MTT method
Compound concentration required to reduce the cell proliferation of larynx carcinoma cells by 50%, using MTT method
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[PMID: 12431048] |
Questiomycin A (3 µM; 24 h) induces cell death and downregulates GRP78 protein expression in HepG2 cells[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:HepG2 cells
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Concentration:3 µM
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Incubation Time:24 h
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Result:Suppressed more than 50% of the GRP78 expression and induced cell death.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Nude mice (HepG2 cells xenograft model)[1].
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Dosage:10 mg/kg
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Administration:Intraperitoneal injection; once a day; 8 days.
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Result:Stimulated Sorafenib-dependent antitumor activity.
Chemical Information
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CAS No. 1916-59-2
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Appearance Solid
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Molecular Weight 212.20
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Formula C12H8N2O2
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Color Brown to black
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SMILES
O=C1C(N)=CC2=NC3=C(C=CC=C3)OC2=C1
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Synonyms
Phx-3
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
DMSO : 12.5 mg/mL (58.91 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (274 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Machihara K, et al. Questiomycin A stimulates sorafenib-induced cell death via suppression of glucose-regulated protein 78. Biochem Biophys Res Commun. 2017 Oct 7;492(1):33-40. [Content Brief]
[2]. Guo S, et al. Production of Antibacterial Questiomycin A in Metabolically Engineered Pseudomonas chlororaphis HT66. J Agric Food Chem. 2022 Jun 29;70(25):7742-7750. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 4.7125 mL | 23.5627 mL | 47.1254 mL | 117.8134 mL |
| 5 mM | 0.9425 mL | 4.7125 mL | 9.4251 mL | 23.5627 mL | |
| 10 mM | 0.4713 mL | 2.3563 mL | 4.7125 mL | 11.7813 mL | |
| 15 mM | 0.3142 mL | 1.5708 mL | 3.1417 mL | 7.8542 mL | |
| 20 mM | 0.2356 mL | 1.1781 mL | 2.3563 mL | 5.8907 mL | |
| 25 mM | 0.1885 mL | 0.9425 mL | 1.8850 mL | 4.7125 mL | |
| 30 mM | 0.1571 mL | 0.7854 mL | 1.5708 mL | 3.9271 mL | |
| 40 mM | 0.1178 mL | 0.5891 mL | 1.1781 mL | 2.9453 mL | |
| 50 mM | 0.0943 mL | 0.4713 mL | 0.9425 mL | 2.3563 mL |
Questiomycin A Related Classifications
HY-N8439 Related Classifications
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