PYR41

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PYR41

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Cat No: 15226

Biochemicals - Small Molecule Inhibitors

PYR41 is an irreversible inhibitor of ubiquitin-activating enzyme (E1) with an IC50 value of less than 10 µM.{36793} PYR41 specifically inhibits ubiquitin-thioester bond formation (IC50 = 6.4 µM) and not adenylation.{34092} It is selective for E1 over...

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Territorial Availability: Available through Bertin Technologies only in France

Synonyms:

4-[4-[(5-nitro-2-furanyl)methylene]-3,5-dioxo-1-pyrazolidinyl]-benzoic acid, ethyl ester

Correlated keywords:

PYR-41 E-1 2 3 auto-ubiquitination NF?B TRAF-6 p-53 JAK-2 Bcrabl Tumor necrosis factor janus kinase 2

Product Overview:
PYR41 is an irreversible inhibitor of ubiquitin-activating enzyme (E1) with an IC50 value of less than 10 µM.{36793} PYR41 specifically inhibits ubiquitin-thioester bond formation (IC50 = 6.4 µM) and not adenylation.{34092} It is selective for E1 over ubiquitin-conjugating enzyme (E2) but does inhibit autoubiquitination of the HECT domain ubiquitin protein ligase (E3) Nedd4 at a concentration of 50 µM in an autoubiquitination assay.{36793} It inhibits proteasome-dependent and -independent ubiquitination and protein degradation when used at a concentration of 50 µM. PYR41 prevents activation of NF-κB, ubiquitination of TNF receptor-associated factor 6 (TRAF6), and proteasomal degradation of IκBα. It prevents degradation and induces transcriptional activity of the tumor suppressor p53 and preferentially induces apoptosis of E1A-transformed RPE cells expressing wild-type p53 over non-transformed RPE cells when used at concentrations ranging from 1 to 20 µM. PYR41 also increases net cellular sumoylation and irreversibly cross-links proteins such as JAK2 and Bcr-Abl.{36793,36794}

Size	1 mg
Shipping	dry ice
CAS Number	418805-02-4
Molecular Formula	C₁₇H₁₃N₃O₇
SMILES	O=C(OCC)C1=CC=C(N2C(/C(C(N2)=O)=C\C3=CC=C([N+]([O-])=O)O3)=O)C=C1
Molecular Weight	371,3
Formulation	A crystalline solid
Purity	≥95%
Custom Code	2922.19
UNSPSC code	12352100

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Cayman Chemical's mission is to help make research possible by supplying scientists worldwide with the basic research tools necessary for advancing human and animal health. Our utmost commitment to healthcare researchers is to offer the highest quality products with an affordable pricing policy.

Our scientists are experts in the synthesis, purification, and characterization of biochemicals ranging from small drug-like heterocycles to complex biolipids, fatty acids, and many others. We are also highly skilled in all aspects of assay and antibody development, protein expression, crystallization, and structure determination.

Over the past thirty years, Cayman developed a deep knowledge base in lipid biochemistry, including research involving the arachidonic acid cascade, inositol phosphates, and cannabinoids. This knowledge enabled the production of reagents of exceptional quality for cancer, oxidative injury, epigenetics, neuroscience, inflammation, metabolism, and many additional lines of research.

Our organic and analytical chemists specialize in the rapid development of manufacturing processes and analytical methods to carry out clinical and commercial GMP-API production. Pre-clinical drug discovery efforts are currently underway in the areas of bone restoration and repair, muscular dystrophy, oncology, and inflammation. A separate group of Ph.D.-level scientists are dedicated to offering Hit-to-Lead Discovery and Profiling Services for epigenetic targets. Our knowledgeable chemists can be contracted to perform complete sample analysis for analytes measured by the majority of our assays. We also offer a wide range of analytical services using LC-MS/MS, HPLC, GC, and many other techniques.

Accreditations
ISO/IEC 17025:2005
ISO Guide 34:2009

Cayman is a leader in the field of emerging drugs of abuse, providing high-purity Schedule I-V Controlled Substances to federally-licensed laboratories and qualified academic research institutions for forensic analyses. We are certified by ACLASS Accreditation Services with dual accreditation to ISO/IEC 17025:2005 and ISO Guide 34:2009.