Cell Signaling Technology

Product Pathways - Companion Products

DYKDDDDK Tag Antibody (Binds to same epitope as Sigma's Anti-FLAG® M2 Antibody) (Pacific Blue™ Conjugate) #9059

Applications Reactivity Sensitivity Source
F All Transfected Only Rabbit

Applications Key:  F=Flow Cytometry
Reactivity Key: All=All species expected
Species cross-reactivity is determined by western blot.

Protocols

Specificity / Sensitivity

DYKDDDDK Tag Antibody (Binds to same epitope as Sigma's Anti-FLAG® M2 Antibody) (Pacific Blue™ Conjugate) recognizes transfected DYKDDDDK-tagged proteins in cells. The antibody recognizes the DYKDDDDK peptide (the same epitope recognized by Sigma's Anti-FLAG® antibodies) fused to either the amino- or carboxy-terminus of targeted proteins. The binding specificity of this antibody is NOT dependent on the presence of divalent metal cations.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic DYKDDDDK peptide. Antibodies are purified by protein A and peptide affinity chromatography.

Flow Cytometry

Flow Cytometry

Flow cytometric analysis of COS-7 cells, untransfected (blue) or transfected with a DYKDDDDK-tagged fusion protein, using DYKDDDDK Tag Antibody (Binds to same epitope as Sigma's Anti-FLAG® M2 Antibody) (Pacific Blue™ Conjugate) (green).

Description

This Cell Signaling Technology antibody is conjugated to Pacific Blue™ fluorescent dye and tested in-house for direct flow cytometry analysis in cells transiently transfected with a DYKDDDDK-tagged fusion protein.

Background

Epitope tags are useful for the labeling and detection of proteins using immunoblotting, immunoprecipitation, and immunostaining techniques. Because of their small size, they are unlikely to affect the tagged protein's biochemical properties.

The DYKDDDDK peptide has been used extensively as a general epitope tag in expression vectors. This peptide can be expressed and detected with the protein of interest as an amino-terminal or carboxy-terminal fusion (1).

  1. Brizzard, B.L. et al. (1994) Biotechniques 16, 730-5.

Application References

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Companion Products

For Research Use Only. Not For Use In Diagnostic Procedures.

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