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PhosphoSitePlus® Resource

  • Additional protein information
  • Analytical tools


Product Includes Quantity Applications Reactivity MW(kDa) Isotype
Src (32G6) Rabbit mAb 2123 20 µl
Western Blotting Immunoprecipitation
H M R Mk 60 Rabbit IgG
Csk (C74C1) Rabbit mAb 4980 20 µl
Western Blotting
H M R Mk Pg 50 Rabbit IgG
Fyn Antibody 4023 20 µl
Western Blotting
H M 59 Rabbit 
Lck (D88) XP® Rabbit mAb 2984 20 µl
Western Blotting Immunohistochemistry
H 56 Rabbit IgG
Lyn (C13F9) Rabbit mAb 2796 20 µl
Western Blotting Immunoprecipitation Immunohistochemistry
H M R Mk 56 Rabbit IgG
Yes Antibody 3201 20 µl
Western Blotting Immunoprecipitation
H Mk B 60 Rabbit 
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl
Western Blotting

Product Description

The Src Family Antibody Sampler Kit provides an economical means of evaluating total levels of Src family member proteins. The kit contains enough primary and secondary antibody to perform two western blots with each antibody.

Specificity / Sensitivity

Each antibody in the Src Family Antibody Sampler Kit detects endogenous levels of its target protein and does not cross-react with other family members.

Source / Purification

Src (32G6) Monoclonal antibody is produced by immunizing animals with a GST-Src fusion protein containing amino acid residues 1-110 of human Src. The remaining monoclonal antibodies are produced by immunizing animals with synthetic peptides corresponding to residues surrounding Val399 of human Csk, Thr50 of human Lck, and the amino-terminal sequence of human Lyn. Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser25 of human Fyn and the amino terminus of human Yes. Polyclonal antibodies are purified by protein A and peptide affinity chromatography.

The Src family of protein tyrosine kinases, which includes Src, Lyn, Fyn, Yes, Lck, Blk, and Hck, are important in the regulation of growth and differentiation of eukaryotic cells (1). Src activity is regulated by tyrosine phosphorylation at two sites, but with opposing effects. While phosphorylation at Tyr416 in the activation loop of the kinase domain upregulates enzyme activity, phosphorylation at Tyr527 in the carboxy-terminal tail by Csk renders the enzyme less active (2).

The kinase Fyn plays a role in T-cell receptor signaling and also helps in memory formation and adhesion mediated signaling (3,4). Lymphocyte specific kinase Lck is essential in the differentiation and activation of T-cells (3). Hematopoietic Lyn kinase, also phosphorylated by Csk, is involved in the regulation of B-cell function, migration and development (5). The ubiquitously expressed kinase Yes acts downstream of several different cell surface receptors, including G-protein-coupled receptors, and is involved in the regulation of angiogenesis, the cell cycle and cell adhesion (6,7).

1.  Thomas, S.M. and Brugge, J.S. (1997) Annu Rev Cell Dev Biol 13, 513-609.

2.  Hunter, T. (1987) Cell 49, 1-4.

3.  Palacios, E.H. and Weiss, A. (2004) Oncogene 23, 7990-8000.

4.  Isosaka, T. et al. (2008) Eur. J. Neurosci. 28, 973-981.

5.  Seo, S. et al. (2001) J. Immunol. 166, 3710-3716.

6.  Summy, J.M. et al. (2003) J Cell Sci 116, 2585-98.

7.  Werdich, X.Q. and Penn, J.S. (2005) Angiogenesis 8, 315-326.

Entrez-Gene Id 1445 , 2534 , 3932 , 4067 , 6714 , 7525
Swiss-Prot Acc. P41240 , P06241 , P06239 , P07948 , P12931 , P07947

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. 7,429,487, foreign equivalents, and child patents deriving therefrom.

Src Family Antibody Sampler Kit