For research use only.
CAS No. 778270-11-4
GNF-2 is a highly selective non-ATP competitive inhibitor of Bcr-Abl, shows no activity to Flt3-ITD, Tel-PDGFR, TPR-MET and Tel-JAK1 transformed tumor cells.
Selleck's GNF-2 has been cited by 6 publications
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Choose Selective Bcr-Abl Inhibitors
|Description||GNF-2 is a highly selective non-ATP competitive inhibitor of Bcr-Abl, shows no activity to Flt3-ITD, Tel-PDGFR, TPR-MET and Tel-JAK1 transformed tumor cells.|
GNF-2 causes a dose-dependent growth inhibition of the Bcr-abl–positive cell lines with IC50 values of 273 nM (K562) and 268 nM (SUP-B15). GNF-2 inhibits the growth of Ba/F3.p210E255V and Ba/F3.p185Y253H cells with IC50 values of 268 nM and 194 nM respectively. GNF-2 (1 μM) induces apoptosis of Ba/F3.p210 cells as well as Ba/F3.p210E255V cells. GNF-2 inhibits the cellular tyrosine phosphorylation of Bcr-abl in a dose-dependent manner with IC50 of 267 nM. GNF-2 (1 μM) induces a significant decrease in the levels of phospho-Stat5 in Ba/F3.p210 cells. GNF-2 binds to the myristic binding pocket of Bcr-abl.  GNF-2 inhibits the kinase activity of non-myristoylated c-Abl more potently than that of myristoylated c-Abl by binding to the myristate-binding pocket in the C-lobe of the kinase domain. GNF-2 (10 μM) requires BCR and/or the c-Abl SH3 and/or SH2 domains to inhibit BCR-Abl-dependent cell proliferation. GNF-2, but not a methylated GNF-2 analog, binds c-Abl in cellular extracts derived from 3T3 fibroblasts. GNF-2 (10 μM), in a dose-dependent manner, clearly inhibits tyrosine phosphorylation of CrkII. GNF-2 inhibits the phosphorylation of CrkII in c-AblG2A-expressing cells with IC50 of 0.051 μM.  GNF-2 binds in an extended conformation in the myristate pocket with the CF3-group buried at the same depth as the final two carbons of the myristate ligand. GNF-2 (10 µM) combined with imatinib (1 µM) reduces the number of resistant clones to 1 µM imatinib by at least 90%.  GNF-2 inhibits the auto-phosphorylation and proliferation of BafF3 cells expressing p210Bcr–Abl and p210Bcr–Abl mutants. GNF-2 (8 nM) in combination with GNF-5 (20 nM) results in additive effects with respect to inhibition of the Abl64–515 kinase activity. 
Binding assay:Recombinant proteins (100 nM for each construct) or immunoprecipitated proteins are diluted in kinase buffer (20 mM HEPES (pH 7.4), 50 mM KCl, 0.1% CHAPS, 30 mM MgCl2, 2 mM MnCl2, 1 mM DTT, and 1% glycerol). Aliquots of the diluted proteins are preincubated with either DMSO or compounds for 30 min at room temperature and then added to K-LISA PTK EAY reaction plates. The kinase reaction is initiated by adding 0.1 mM ATP and is allowed to proceed for 30 min at room temperature. The phosphorylation of GST-Abltide is monitored by SDS-PAGE and phosphorimaging analysis or autoradiography.
|In vitro||DMSO||74 mg/mL (197.69 mM)|
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