Date published: 2026-5-30

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Src Family Activator

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Alternate Names:
YEEI phosphopeptide; EPQpYEEIPIYL; YEEI peptide
Application:
Src Family Activator is a synthetic activator for Src family members
Purity:
≥96%
Molecular Weight:
1473.7
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Src Family Activator is a synthetic activator for Src family members. YEE1 phosphopeptide. Sequence derived from hamster polyoma virus middle T antigen inclusive of phosphorylated Tyr 324. Activates Src family members by binding to SH2 domains.


Src Family Activator References

  1. The role of backbone motions in ligand binding to the c-Src SH3 domain.  |  Wang, C., et al. 2001. J Mol Biol. 313: 873-87. PMID: 11697910
  2. Hierarchy of simulation models in predicting structure and energetics of the Src SH2 domain binding to tyrosyl phosphopeptides.  |  Verkhivker, GM., et al. 2002. J Med Chem. 45: 72-89. PMID: 11754580
  3. Inhibitory effects of rosmarinic acid on Lck SH2 domain binding to a synthetic phosphopeptide.  |  Ahn, SC., et al. 2003. Planta Med. 69: 642-6. PMID: 12898421
  4. The relationship between the pY+3 amino acid in the phosphopeptide ligands and the specificity for various SH2 domains.  |  Lee, KH. and Park, SH. 2004. Protein Pept Lett. 11: 527-32. PMID: 15579120
  5. Surface plasmon resonance thermodynamic and kinetic analysis as a strategic tool in drug design. Distinct ways for phosphopeptides to plug into Src- and Grb2 SH2 domains.  |  de Mol, NJ., et al. 2005. J Med Chem. 48: 753-63. PMID: 15689159
  6. Identification of novel fragment compounds targeted against the pY pocket of v-Src SH2 by computational and NMR screening and thermodynamic evaluation.  |  Taylor, JD., et al. 2007. Proteins. 67: 981-90. PMID: 17393456
  7. Engineered SH2 domains with tailored specificities and enhanced affinities for phosphoproteome analysis.  |  Veggiani, G., et al. 2019. Protein Sci. 28: 403-413. PMID: 30431205
  8. Revisiting the phosphotyrosine binding pocket of Fyn SH2 domain led to the identification of novel SH2 superbinders.  |  Li, S., et al. 2021. Protein Sci. 30: 558-570. PMID: 33314411
  9. Rapid T-cell receptor-mediated tyrosine phosphorylation of p120, an Fyn/Lck Src homology 3 domain-binding protein.  |  Reedquist, KA., et al. 1994. Proc Natl Acad Sci U S A. 91: 4135-9. PMID: 7514295
  10. Recognition of a high-affinity phosphotyrosyl peptide by the Src homology-2 domain of p56lck.  |  Eck, MJ., et al. 1993. Nature. 362: 87-91. PMID: 7680435
  11. SH2 domains recognize specific phosphopeptide sequences.  |  Songyang, Z., et al. 1993. Cell. 72: 767-78. PMID: 7680959
  12. Binding of a high affinity phosphotyrosyl peptide to the Src SH2 domain: crystal structures of the complexed and peptide-free forms.  |  Waksman, G., et al. 1993. Cell. 72: 779-90. PMID: 7680960
  13. Activation of endogenous c-Src or a related tyrosine kinase by intracellular (pY)EEI peptide increases voltage-operated calcium channel currents in rabbit ear artery cells.  |  Wijetunge, S. and Hughes, AD. 1996. FEBS Lett. 399: 63-6. PMID: 8980120
  14. Dual specificity of Src homology 2 domains for phosphotyrosine peptide ligands.  |  Gay, B., et al. 1997. Biochemistry. 36: 5712-8. PMID: 9153411
  15. The phosphopeptide-binding specificity of Src family SH2 domains.  |  Payne, G., et al. 1994. Chem Biol. 1: 99-105. PMID: 9383377

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Src Family Activator, 0.5 mg

sc-3052
0.5 mg
$97.00

Could you recommend a concentration for which this product will exert proliferative effect on fibroblast cells?

Asked by: jk77
Thank you for your question. It would be helpful if you could call 800-457-3801, allowing for a more interactive discussion of this and other related questions.
Answered by: Technical Service
Date published: 2022-03-28

Could the src kinase activator( sc-3052) be used by extracellular applying or must be intracellular used?

Asked by: nata
Thank you for your question. This is a hard question since it depends on what you are trying to do. If you are looking to activate kinases that are in the cell membrane, that have extracellular kinase domains, then adding the peptide to the media may work. If you are looking to activate intracellular kinases, then you need to get the peptide inside of the cells, but peptides generally don't enter cells passively. This article may be helpful for you: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4891184/ Please contact Technical Service by phone, (800)-457-3801 option 2, email <scbt@scbt.com>, or by live chat directly on our website, www.scbt.com if you have any further questions.
Answered by: Tech Service
Date published: 2021-02-05
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Rated 5 out of 5 by from ExcellentSrc family activator (sc3052) efficiently activates Src functional activity, which contributes to mechanism identification.
Date published: 2020-10-28
Rated 5 out of 5 by from Wijetunge et alWijetunge et al. (PubMed ID 8980120) used Src Family Activator (YEEI peptide) to activate endogenous c-Src tyrosine kinase to study c-Src regulation of voltage-operated calcium channel currents in arterial smooth muscle cells. -SCBT Publication Review
Date published: 2015-07-10
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Src Family Activator is rated 5.0 out of 5 by 2.
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