Revision 1

#29832Store at +4C

5 mg

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.

Background

WHI-P131 is a potent and selective inhibitor of Janus kinase 3 (Jak3) (IC50 = 78 μM) and glioblastoma cell adhesion and migration (1,2). This novel quinazoline derivative inhibits the enzymatic activity of constitutively active Jak3 without affecting Jak1, Jak2, or other family tyrosine kinases (1). WHI-P131 has also been shown to inhibit thrombin-induced tyrosine phosphorylation of Stat1 and Stat3. These properties make this compound useful when studying different diseases such as acute lymphoblastic leukemia, glioblastoma multiforme, and thromboembolism (1-3).

  1. Sudbeck, E.A. et al. (1999) Clin Cancer Res 5, 1569-82.
  2. Narla, R.K. et al. (1998) Clin Cancer Res 4, 2463-71.
  3. Tibbles, H.E. et al. (2001) J Biol Chem 276, 17815-22.

Molecular Formula

C16H15N3O3 • HCl

Molecular Weight

333.8 g/mol

Purity

>98%

CAS

202475-60-3

Solubility

Soluble in DMSO at 50 mg/ml.

Storage

Store lyophilized at 4ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC and use within 2 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Directions for Use

WHI-P131 is supplied as a lyophilized powder. For a 15 mM stock, reconstitute 5 mg of powder in 998 μl of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.

Background References

    Cross-Reactivity Key

    H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    XP is a registered trademark of Cell Signaling Technology, Inc.
    All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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    Revision 1
    #29832

    WHI-P131

    WHI-P131: Image 1 Expand Image
    使用 Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb #9145(上图)、Stat3 (D3Z2G) Rabbit mAb #12640(中图)或 β-Actin (D6A8) Rabbit mAb #8457(下图)对未经处理 (-) 或已经过 WHI-P131(50 μM,1 小时;+)处理的 KARPAS 299 细胞的提取物进行蛋白质印迹分析。
    WHI-P131: Image 2 Expand Image
    WHI-P131 的化学结构。