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REACTIVITY SENSITIVITY MW (kDa) Isotype
135 Rabbit 

Product Usage Information

Storage: Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

Phospho-Ack1 (Tyr857/858) (C57E10) Rabbit mAb detects transfected levels of Ack1 only when phosphorylated at Tyr857/858. This antibody may cross-react with other tyrosine-phosphorylated tyrosine kinases.


Species predicted to react based on 100% sequence homology: Mouse

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr857/858 of human Ack1.

Ack1 and Ack2 (activated cdc42-associated kinase 1 and 2) are non-receptor tyrosine kinases that consist of a tyrosine kinase core, an SH3 domain, a cdc42/Rac-binding (CRIB) domain, a Ralt homology region and a proline-rich region (1,2). Ack1 and 2 are the only two tyrosine kinases known to interact with cdc42. Both Acks are activated by growth factors including EGF and PDGF, as well as by activated integrins through cell adhesion, and may serve to link receptor tyrosine kinase or G protein-coupled receptor signaling with cdc42. Acks may regulate cell growth, morphology and motility (3,4). Recent findings indicate that Ack1 may play a role in prostate tumorigenesis, making it a potential drug target for this type of cancer (5).


1.  Galisteo, M.L. et al. (2006) Proc. Natl. Acad. Sci. USA 103, 9796-9801.

2.  Yokoyama, N. and Miller, W.T. (2003) J. Biol. Chem. 278, 47713-47723.

3.  Yang, W. and Cerione, R.A. (1997) J. Biol. Chem. 272, 24819-24824.

4.  Yang, W. et al. (2001) J. Biol. Chem. 276, 43987-43993.

5.  Mahajan, N.P. et al. (2005) Cancer Res. 65, 10514-10523.


Entrez-Gene Id 10188
Swiss-Prot Acc. Q07912


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.
U.S. Patent No. 5,675,063.