MI-2 (MALT1 inhibitor)

For research use only.

Catalog No.S7429

8 publications

MI-2 (MALT1 inhibitor) Chemical Structure

CAS No. 1047953-91-2

MI-2 (MALT1 inhibitor) is an irreversible MALT1 inhibitor with IC50 of 5.84 μM.

Selleck's MI-2 (MALT1 inhibitor) has been cited by 8 publications

1 Customer Review

  • (a-b) Cell growth analysis via MTT assay. Melanoma cell lines, including A2028, A375, WM35, Skmel28, CRL7625 and CRL7626, were seeded in 96-well dishes, and treated in tetrads for 48 hours with varying doses of MI-2. Graph represents average percent of live cells normalized to the untreated group +/- SD.

    Oncogenesis, 2017, 6(7):e365. MI-2 (MALT1 inhibitor) purchased from Selleck.

Purity & Quality Control

Choose Selective MALT Inhibitors

Biological Activity

Description MI-2 (MALT1 inhibitor) is an irreversible MALT1 inhibitor with IC50 of 5.84 μM.
MALT1 [1]
(cell-free assay)
5.84 μM
In vitro

MI-2 inhibits MALT1 functions in ABC-DLBCL cell lines with excellent cell penetration. MI-2 produces selective growth inhibition for MALT1-dependent cell lines with GI50 of 0.2, 0.5, 0.4, and 0.4 礛 in HBL-1, TMD8, OCI-Ly3, and OCI-Ly10 cells, whereas the ABC-DLBCL MALT1-independent cell lines, U2932 and HLY-1, and the two GCB-DLBCL cell lines were resistant. [1]

In vivo MI-2 (350 mg/kg) is nontoxic to mice. MI-2 (25 mg/kg/day i.p.) profoundly suppresses the growth of both the TMD8 and HBL-1 ABC-DLBCL xenografts, whereas it has no effect on the growth of OCI-Ly1 tumors. [1]


Kinase Assay:[1]
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High-Throughput Screening for MALT1 Proteolytic Activity Inhibitors:

Ac-LRSR-AMC is used as substrate and reactions are measured with excitation/emission wavelengths of 360/465 nm. Two time points are measured for each reaction to eliminate false positives due to compound autofluorescence. The final percent inhibition is calculated with the formula {[fluorescencetest compound (T2-T1)-fluorescenceneg ctrl (T2-T1)]/[fluorescencepos ctrl (T2-T1)-fluorescenceneg ctrl (T2-T1)]} × 100, where Z-VRPR-FMK (300 nM) is used as positive control and buffer only as negative control. The positive hits are validated in concentration-response experiments within a dose range of 0.122–62.5 µM to determine IC50 of the compounds. Activity is validated using recombinant full-length wild-type MALT1.
Cell Research:[1]
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  • Cell lines: MALT1-independent cell lines: U2932 and HLY-1, and the two GCB-DLBCL cell lines; MALT1-dependent cell lines: HBL-1, TMD8, OCI-Ly3, and OCI-Ly10 cells.
  • Concentrations: ~5 μM
  • Incubation Time: 48 hours
  • Method: Cell proliferation is determined by ATP quantification using a luminescent method and trypan blue dye exclusion. Standard curves for each cell line are calculated by plotting the cell number (determined using trypan blue) against their luminescence values, and cell number is calculated accordingly. Cell viability in drug-treated cells is normalized to their respective controls (fractional viability), and results are given as 1-fractional viability. CompuSyn software is used to determine GI25 and GI50 values.
    (Only for Reference)
Animal Research:[1]
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  • Animal Models: SCID NOD.CB17-Prkdcscid/J mice bearing human HBL-1, TMD8, or OCI-Ly1 xenograft.
  • Dosages: 25 mg/kg/day
  • Administration: i.p.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 91 mg/mL (199.68 mM)
Ethanol 91 mg/mL (199.68 mM)
Water Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
For best results, use promptly after mixing.

* 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 455.72


CAS No. 1047953-91-2
Storage powder
in solvent
Synonyms N/A
Smiles COCCOC1=NN(C(=N1)C2=CC(=C(C=C2)Cl)Cl)C3=CC=C(C=C3)NC(=O)CCl

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Tech Support

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.

Handling Instructions

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID