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REACTIVITY
Product Includes Volume Cap Color
P-Stat5 (Y694) Capture Ab (100X) 0.4 ml Pink
Stat5 Detection Ab (100X) 0.4 ml Blue
Anti-rabbit IgG, HRP-linked Antibody 0.04 ml Red

Product Description

CST's PathScan® Phospho-Stat5 (Tyr694) Sandwich ELISA Antibody Pair is being offered as an economical alternative to our PathScan® Phospho-Stat5 (Tyr694) Sandwich ELISA Kit #7113. Capture and detection antibodies (100X stocks) and an HRP-conjugated secondary antibody (1000X stock) are supplied. Sufficient reagents are supplied for 4 x 96 well ELISAs. The Phospho-Stat5 (Tyr694) Mouse Capture Antibody is coated in PBS overnight in a 96 well microplate. After blocking, cell lysate is added followed by a Stat5 Rabbit Detection Antibody and an HRP-conjugated Anti-Rabbit IgG Antibody. HRP substrate (TMB) is added for color development. The magnitude of the absorbance for this developed color is proportional to the quantity of Stat5 phosphorylated at Tyr694.

*Antibodies in this kit are custom formulations specific to the kit.


Product Usage Information

Antibody pairs have been optimized using recommended buffers, reagents, plates and the included protocol. Solutions should be made fresh daily.


Storage: Capture and detection antibodies are stored at 4°C. HRP-linked secondary reagent is stored at -20°C.

Specificity / Sensitivity

For Antibody Pair specificity and sensitivity, please refer to the corresponding PathScan® Sandwich ELISA Kit. Note: This antibody pair detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.


Stat5 is activated in response to a wide variety of ligands including IL-2, GM-CSF, growth hormone and prolactin. Phosphorylation at Tyr694 is obligatory for Stat5 activation (1,2). This phosphorylation is mediated by Src upon erythropoietin stimulation (3). Stat5 is constitutively active in some leukemic cell types (4). Phosphorylated Stat5 is found in some endothelial cells treated with IL-3, which suggests its involvement in angiogenesis and cell motility (5). Stat5a and Stat5b are independently regulated and activated in various cell types. For instance, interferon treatment predominantly activates Stat5a in U-937 cells and Stat5b in HeLa cells (6).


1.  Okutani, Y. et al. (2001) Oncogene 20, 6643-6650.

2.  Demoulin, J.B. et al. (1999) J. Biol. Chem. 274, 25855-25861.

3.  Meinke, A. et al. (1996) Mol. Cell. Biol. 16, 6937-6944.

4.  Gouilleux, F. et al. (1994) EMBO J 13, 4361-9.

5.  Wakao, H. et al. (1994) EMBO J 13, 2182-91.

6.  Dentelli, P. et al. (1999) J. Immunol. 163, 2151-2159.


Entrez-Gene Id 6776, 6777
Swiss-Prot Acc. P42229, P51692


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.
PathScan® is a trademark of Cell Signaling Technology, Inc.