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5.31131

USP1-UAF1 Inhibitor, ML323

Name: USP1-UAF1 Inhibitor, ML323
Brand: MM

Synonym(s):

USP1-UAF1 Inhibitor, ML323, N-(4-(1H-1,2,3-Triazol-1-yl)benzyl)-2-(2-isopropylphenyl)-5-methylpyrimidin-4-amine, USP1–UAF1 Deubiquitinase complex Inhibitor, ML 323

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About This Item

Empirical Formula (Hill Notation):

C₂₃H₂₄N₆

CAS Number:

1572414-83-5

Molecular Weight:

384.48

UNSPSC Code:

12352200

PubChem Substance ID:

60167849

NACRES:

NA.77

Assay

≥98% (HPLC)

Quality Level

100

form

powder

manufacturer/tradename

Calbiochem^®

storage condition

OK to freeze
protect from light

color

off-white

solubility

DMSO: 100 mg/mL

storage temp.

2-8°C

SMILES string

CC1=CN=C(N=C1NCC2=CC=C(C=C2)N3C=CN=N3)C4=CC=CC=C4C(C)C

General description

A cell-permeable, non-toxic triazolylbenzyl-pyrimidinamine compound that acts as a highly selective, potent, and reversible inhibitor of ubiquitin-specific protease 1 (USP1)-USP1 associated factor 1 (UAF1) deubiquitinase (DUB) (IC₅₀ = 76, 174, and 820 nM in Ub-Rhodamine; K63 linked diubiquitin; and Ub-PCNA substrate based assays) without disrupting USP1-UAF1 association. The inhibition appears to be allosteric in nature with inhibition constants of 68 nM and 183 nM (for free enzyme and enzyme-substrate complex, respectively). Displays excellent selectivity over 18-DUBs including USP1 and USP46-UAF1, related deSUMOylases & deneddylases, 70 unrelated proteases, and 451 kinases. Effectively sensitizes cisplatin-resistant NSCLC H596 cells and U2OS osteosarcoma cells to cisplatin (Cat. No. 232120) and blocks cell cycle at the S phase (EC₅₀ = 171 and 59 nM for 1:1 and 1:4 ratio of cisplatin to ML323 in H596 cells).

A cell-permeable, non-toxic triazolylbenzyl-pyrimidinamine compound that acts as a highly selective, potent, and reversible inhibitor of ubiquitin-specific protease 1 (USP1)-USP1 associated factor 1 (UAF1) deubiquitinase (DUB) (IC₅₀ = 76, 174, and 820 nM in Ub-Rhodamine; K63 linked diubiquitin; and Ub-PCNA substrate based assays) without disrupting USP1-UAF1 association. The inhibition appears to be allosteric in nature with inhibition constants of 68 nM and 183 nM (for free enzyme and enzyme-substrate complex, respectively). Displays excellent selectivity over 18-DUBs including USP1 and USP46-UAF1, related deSUMOylases & deneddylases, 70 unrelated proteases, and 451 kinases. Effectively sensitizes cisplatin-resistant NSCLC H596 cells and U2OS osteosarcoma cells to cisplatin (Cat. No. 232120) and blocks cell cycle at the S phase (EC₅₀ = 171 and 59 nM for 1:1 and 1:4 ratio of cisplatin to ML323 in H596 cells).

Please note that the molecular weight for this compound is batch-specific due to variable water content.

Biochem/physiol Actions

Cell permeable: yes

Primary Target
USP1-UAF1 deubiquitinase (DUBs) complex

Reversible: yes

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Other Notes

Dexheimer, T.S., et al. 2014. J. Med. Chem.57, in press.
Liang, Q., et al. 2014. Nat Chem Biol.10, 298.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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