PP2

A potent, reversible, ATP-competitive, and selective inhibitor of the Src family of protein tyrosine kinases. Inhibits p56^lck (IC₅₀ = 4 nM), p59^fynT (IC₅₀ = 5 nM), Hck (IC₅₀ = 5 nM), and Src (IC₅₀ = 100 nM). Does not significantly affect the activity of EGFR kinase (IC₅₀ = 480 nM), JAK2 (IC₅₀ >50 µM), or ZAP-70 (IC₅₀ >100 µM). Inhibits the activation of focal adhesion kinase and its phosphorylation at Tyr⁵⁷⁷. Also potently inhibits anti-CD3-stimulated tyrosine phosphorylation of human T cells (IC₅₀ = 600 nM). A 10 mM (1 mg/331 µl) solution of PP2 (Cat. No. 529576) in DMSO also available.

Cell permeable: no

Primary Target
p56^lck

Product competes with ATP.

Reversible: yes

Target IC₅₀: 4 nM, 5 nM, 5 nM, 100 nM, against p56lck, p59fynT, Hck, and Src, respectively; 600 nM against anti-CD3-stimulated tyrosine phosphorylation of human T cells

Packaged under inert gas

Further dilute with aqueous buffers just prior to use.

Karni, R., et al. 2003. FEBS Lett.537, 47.
Salazar, E.P., and Rozengurt, E. 1999. J. Biol. Chem. 274, 28371.
Hanke, J.H., et al. 1996. J. Biol. Chem.271, 695.



Selected Citations
Lee, J., et al. 2009. Cell Stem Cell5, 76.

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Toxicity: Standard Handling (A)