| A cell-permeable steroidal-purinethione that targets JAK3 kinase domain and selectively inhibits JAK3, but not JAK1, JAK2, or TYK2, activity and effectively blocks the constitutive Jak3 and STAT5 phosphorylations (complete inhibition at 10uM) in BaF3-JAK3V674A and BLNK-/- BKO84 culltures. Shown to prevent the JAK3-dependent survival of L540, BaF3-JAK3WT, BaF3-JAK3V674A, and BLNK-/- BKO84 cells (by 40%, 50%, 57%, and 85%, respectively, 20uM, 72 h), while exhibiting no effect against the JAK3-independent growth in DU145, HDLM-2, and MDA-MB-468 cultures. Synonyms: JAK3 Inhibitor VIII, NSC114792, 10,13-Dimethyl-17-(2-(6-sulfanylidene-3H-purin-9-yl)acetyl)-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one, Dimethyl-sulfanylidene-purinyl-acetyl-dodecahydrocyclopenta[a]phenanthren-3-one CAS No: 17392-79-9 Molecular Formula: C26H32N4O2S Molecular Weight: 464.62 Solubility: DMSO (10mg/ml). Form: Supplied as a yellowish-white powder. Purity: 99% (HPLC) Storage and Stability: May be stored at 4C. For long-term storage, aliquot and store at 4C. Do not freeze. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer. |
