For research use only.

Catalog No.S7493 Synonyms: IBT 13131

1 publication

INH1 Chemical Structure

CAS No. 313553-47-8

INH1 is a cell-permeable Hec1 inhibitor, which specifically disrupts the Hec1/Nek2 interaction.

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Selleck's INH1 has been cited by 1 publication

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Biological Activity

Description INH1 is a cell-permeable Hec1 inhibitor, which specifically disrupts the Hec1/Nek2 interaction.
Hec1 [1]
In vitro

INH1 reduces the association of Hec1 with kinetochore and decreases global Nek2 protein level in cells. INH1 effectively inhibits the proliferation of human breast cancer lines with GI50 of 10-21 μM. Moreover, INH1 also elicits cell killing activity in part through impairing the Hec1/Nek2 pathway for the spindle checkpoint regulation. [1]

In vivo INH1 (100 mg/kg i.p.) inhibits breast tumor growth in mice bearing MDA-MB-468 human breast cancer xenograft. [1]


Kinase Assay:[1]
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Binding assays:

Surface plasma resonance (SPR) assays are performed at 22.5°C in HBSD buffer [10 mmol/L HEPES, 150 mmol/L NaCl, 0.1% DMSO (pH 7.5)] on Biacore 3000. 6×His-Hec1 and GST-Nek2 are purified. NTA sensor chip or glutathione-modified CM5 chip are used to capture His-Hec1 and GST-Nek2, respectively. The capture level is about 140 to 180 resonance units (RU) at the flow rate of 5 μL/min. For the binding assay, chips are sequentially treated with compounds (1 or 20 μmol/L) and then proteins (50 μg/mL). Retained RUs are recorded and processed (triplicate experiments).
Cell Research:[1]
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  • Cell lines: MDA-MB-468, SKBR3, T47D, MDA-MB-361, ZR-75-1, HBL100, MDA-MB-435, HS578T, and MCF10A cells.
  • Concentrations: ~50 μM
  • Incubation Time: 3 days
  • Method: Standard 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays with a 3-d drug treatment procedure are performed to measure the dose-dependent cytotoxicity of INH1 in cultured cells. Triplicate sets are measured and compiled for final data presentation.
    (Only for Reference)
Animal Research:[1]
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  • Animal Models: Athymic female BALB/c nude mice bearing MDA-MB-468 human breast cancer xenografts.
  • Dosages: ~100 mg/kg
  • Administration: i.p.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 61 mg/mL (197.79 mM)
Ethanol 61 mg/mL (197.79 mM)
Water 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.

Chemical Information

Molecular Weight 308.40


CAS No. 313553-47-8
Storage powder
in solvent
Synonyms IBT 13131
Smiles CC1=CC(=C(C=C1)C2=CSC(=N2)NC(=O)C3=CC=CC=C3)C

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Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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Microtubule Associated Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID