NGI-1

Catalog No.S8750 Batch:S875001

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Technical Data

Formula

C17H22N4O3S2
Molecular Weight 394.51 CAS No. 790702-57-7
Solubility (25°C)* In vitro DMSO 79 mg/mL (200.24 mM)
Water Insoluble
Ethanol Insoluble
In vivo (Add solvents to the product individually and in order)
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
3.95mg/ml Taking the 1 mL working solution as an example, add 50 μL of 79 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
Clear solution
5% DMSO 95% Corn oil
0.49mg/ml Taking the 1 mL working solution as an example, add 50 μL of 9.8 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results. 
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description NGI-1 is an aminobenzamide-sulfonamide compound that targets both oligosaccharyltransferase (OST) isoforms and therefore may exhibit antiviral activity against flaviviruses.
Targets
oligosaccharyltransferase (OST) [1]
In vitro

NGI-1 is a reversible catalytic subunit inhibitor of the oligosaccharyltransferase (OST) that has higher specificity for STT3B compared to STT3A (STT: OST catalytic subunit). In non-small cell lung cancer cells NGI-1 blocks cell surface localization and signaling of the EGFR glycoprotein, but selectively arrests proliferation in only those cell lines that are dependent on EGFR (or FGFR) for survival. In these cell lines OST inhibition causes cell cycle arrest accompanied by induction of p21, autofluorescence, and changes in cell morphology; all hallmarks of senescence[1]. NGI-1 exhibits broad antiviral activity against multiple flaviviruses. It blocks viral RNA replication independent of inhibition of the catalytic activity of the OST complex[2].

Protocol (from reference)

Cell Assay:

[1]
  • Cell lines

    PC9 and A549 cells

  • Concentrations

    10 μM

  • Incubation Time

    24 h

  • Method

    PC9 and A549 cells were cultured in 6-well plates in serum-containing medium and treated with or without 10 μM NGI-1 for 24 hours.

Selleck's NGI-1 has been cited by 3 publications

ER Stress-Activated HSF1 Governs Cancer Cell Resistance to USP7 Inhibitor-Based Chemotherapy through the PERK Pathway [ Int J Mol Sci, 2024, 25(5)2768] PubMed: 38474017
Glycosylation of FGFR4 in cholangiocarcinoma regulates receptor processing and cancer signaling [ J Cell Biochem, 2022, 10.1002/jcb.30204] PubMed: 34981854
Oligosaccharyltransferase Inhibition Overcomes Therapeutic Resistance to EGFR Tyrosine Kinase Inhibitors [ Cancer Res, 2018, 78(17):5094-5106] PubMed: 30026325

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.