Revision 1

#7937Store at 4C and -20C

 

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Species Cross Reactivity

H

UniProt ID:

#O43561

Entrez-Gene Id:

#27040

Cell Signaling Technology

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For Research Use Only. Not for Use in Diagnostic Procedures.
Product Includes Product # Volume Cap Color Storage Temp

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Description

CST's PathScan® Phospho-LAT (Tyr191) Sandwich ELISA Antibody Pair is being offered as an economical alternative to our PathScan® Phospho-LAT (Tyr191) Sandwich ELISA Kit #7936. 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 LAT mouse capture antibody is coated onto a 96 well microplate overnight in PBS. After blocking, cell lysate is added followed by a phospho-LAT (Tyr191) rabbit detection antibody and HRP-conjugated, anti-rabbit IgG antibody. HRP substrate (TMB) is then added for color development. The magnitude of the absorbance for this developed color is proportional to the quantity of phospho-LAT (Tyr191).
Antibodies in kit are custom formulations specific to kit.

Background

LAT, a transmembrane adaptor protein expressed in T, NK, and mast cells, is an important mediator for T cell receptor (TCR) signaling (1). Upon TCR engagement, activated Zap-70 phosphorylates LAT at multiple conserved tyrosine residues within SH2 binding motifs, exposing these motifs as the docking sites for downstream signaling targets (2,3). The phosphorylation of LAT at Tyr171 and Tyr220 enables the binding of Grb2, Gads/SLP-76, PLCγ1, and PI3 kinase through their SH2 domain and translocates them to the membrane. This process eventually leads to activation of the corresponding signaling pathways (1-4).

  1. Wonerow, P. and Watson, S.P. (2001) Oncogene 20, 6273-83.
  2. Zhang, W. et al. (1998) Cell 92, 83-92.
  3. Paz, P. E. et al. (2001) Biochem. J. 356, 461-71.
  4. Zhang, W. et al. (2000) J. Biol. Chem. 275, 23355-61.

Background References

    Cross-Reactivity Key

    H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    PathScan is a trademark of Cell Signaling Technology, Inc.
    All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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    Revision 1
    #7937

    PathScan® Phospho-LAT (Tyr191) Sandwich ELISA Antibody Pair

    PathScan® Phospho-LAT (Tyr191) Sandwich ELISA Antibody Pair: Image 1 Expand Image
    图 1. 未经处理和已经过抗 CD3 处理的 Jurkat 细胞的裂解物蛋白浓度与使用 PathScan® Phospho-LAT (Tyr191) Sandwich ELISA Antibody Pair #7937 时在 450 nm 处的吸光度之间的关系如图所示。Jurkat 细胞饥饿 48 小时,随后在 37ºC 下用抗 CD3(10 µg/ml)处理 2 分钟,然后进行裂解。