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Huib32

Huib32 is a potent small-molecule inhibitor of USP32 (IC50 = 21.2 nM), exhibiting high selectivity over other closely related deubiquitinating enzymes (DUBs), such as USP8/10/16, UCHL1 and OTUB2. Huib32 reversibly inhibits USP32 by covalently binding to the active site Cys743, which enhances substrate ubiquitination, alters endosomal morphology, and mimics USP32 depletion. Huib32 can be used for breast, ovarian, and lung cancer and Alzheimer's and Parkinson’s diseases research[1].

Product Specifications

UNSPSC

12352005

Target

Deubiquitinase

Related Pathways

Cell Cycle/DNA Damage

Applications

Cancer-programmed cell death

Field of Research

Cancer; Neurological Disease

Purity

98.72

Solubility

DMSO : 100 mg/mL (ultrasonic)

Smiles

CC1=NOC(C)=C1S(N2CCC(C(N[C@@H]3CCN(C#N)C3)=O)CC2)(=O)=O

Molecular Formula

C16H23N5O4S

Molecular Weight

381.45

References & Citations

[1]Scherpe, S., et al. Huib32: A Potent and Selective USP32 Inhibitor Modulating Endosomal Processes and Advancing Cell-Permeable USP32 Probes. bioRxiv (2025) .

Shipping Conditions

Room Temperature

Storage Conditions

-20°C, 3 years; 4°C, 2 years (Powder)

Scientific Category

Reference compound1

Clinical Information

No Development Reported

Available Sizes

Curated Selection

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