Technical Data
SLP 76, phosphorylated (Tyr113) (SH2-domain Leukocyte Protein)
The activation of protein tyrosine kinases is a critical event in T cell antigen receptor (TCR)-mediated signaling. One substrate of the TCR-activated protein tyrosine kinase pathway is a 76-kD protein (SLP-76) that associates with the adaptor protein Grb2. Northern analysis demonstrates that pp76 mRNA is expressed solely in peripheral blood leukocytes, thymus, and spleen; and in human T cell, B cell and monocytic cell lines. In vitro translation of pp76 cDNA gives rise to a single product of 76kD that associates with a GST/Grb2 fusion protein, demonstrating a direct association between these two molecules. Results demonstrate that this novel protein is likely to play an important role in TCR-mediated intracellular signal transduction (1). It has been shown that both SLP-76 and ZAP70 co-immunoprecipitate with Shb in Jurkat T cells and that Shb and Vav co-immunoprecipitate when cotransfected in COS cells. Results indicate that upon TCR stimulation, Shb is targeted to these lipid rafts where Shb aids in recruiting the SLP-76-Gads-Vav complex to the T cell receptor zeta-chain and ZAP70 (2). Tyrosine phosphorylation of SLP-76 at position 113 or 128 was sufficient for it to associate with the N-terminal SH2 of p85. This data suggest that SLP-76 may play a role in PI3K signaling pathways (3).

Suitable for use in Western Blot, Flow Cytometry. Other applications not tested.

Recommended Dilution:
Western Blot: 1:5000-10,000
Flow cytomtery: 1:10
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4°C for short-term only. For long-term storage, aliquot and store at -20°C. Aliquots are stable for at least 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Manufactured incorporating RabMAb® technology under Epitomics US patents, No 5,675,063 and 7,429,487, owned by Abcam.
100ul-20°CBlue IceHumanRabbit
Not determined
A phospho specific peptide corresponding to residues surrounding tyrosine 113 of human SLP-76.
Supplied as a liquid in 50 mM Tris-Glycine, pH 7.4, 0.15 M sodium chloride, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
Recognizes human SLP-76 phosphorylated on Tyr113.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Jackman JK, et al J Biol Chem 270(13):7029-32, 1995 2. Lindholm CK et al. Eur J Biochem 269(13):3279-88, 2002 3. Shim EK, et al. FEBS Lett 575(1-3):35-40, 2004