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Product Description

This biotinylated peptide contains glutamic acid (Glu) and tyrosine (Tyr) at a ratio of 4:1 (Glu:Tyr). This biotinylated peptide was generated for use as substrate in a tyrosine kinase assays, and also can serve as a positive control in tyrosine phosphatase assays.

Molecular Formula:

3250 daltons

Peptide Core Sequence:

Glu:Tyr 4:1

Quality Control

The quality of the biotinylated peptide was evaluated by reverse-phase HPLC and by mass spectrometry.

Product Usage Information

The phosphorylated form of the peptide can be detected with the Phospho-Tyrosine Mouse mAb (P-Tyr-100) #9411.

Storage: Supplied in 0.0001% DMSO. Store at -20°C.

For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Use of Cell Signaling Technology (CST) Motif Antibodies within certain methods (e.g., U.S. Patents No. 7,198,896 and 7,300,753) may require a license from CST. For information regarding academic licensing terms please have your technology transfer office contact CST Legal Department at For information regarding commercial licensing terms please contact CST Pharma Services Department at

Poly (Glu-Tyr) Biotinylated Peptide