Cell Signaling Technology

Product Pathways - Complementary Reagents

β-Gal (14B7) Mouse mAb #2372

Applications Reactivity Sensitivity Isotype
W IP IF-IC F All Transfected Only Mouse IgG1

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IF-IC=Immunofluorescence (Immunocytochemistry)  F=Flow Cytometry
Reactivity Key: All=All species expected
Species cross-reactivity is determined by western blot.

Protocols

Specificity / Sensitivity

Beta-Gal 14B7 Mouse mAb detects transfected beta-galactosidase fusion proteins.

Source / Purification

Monoclonal antibody is produced by immunizing animals with recombinant beta-galactosidase protein.

Western Blotting

Western Blotting

Western blot analysis of cells expressing beta-galactosidase (lane 1) or cells without transfection (lane 2), using Beta-Gal (14B7) Mouse mAb.

IP

IP

Immunoprecipitation of cell extracts overexpressing beta-galactosidase (lane 1) or cells without transfection (lane 2), using Beta-Gal (14B7) Mouse mAb, followed by Western blot analysis using the same antibody.

Flow Cytometry

Flow Cytometry

Flow cytometric analysis of COS cells, untransfected (blue) or transfected with β-galactosidase (green), using β-Gal (14B7) Mouse mAb.


IF-IC

IF-IC

Immunocytochemical staining of cells expressing b-galactosidase (left) or cells without transfection (right), using b-Gal 14B7 Mouse mAb.

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.

Eukaryotic genes can be cloned into E. coli beta-galactosidase (lacZ) gene (1-3). This results in the expression of a fusion protein containing the desired protein with a beta-gal tag. An antibody to this tag can then be used to isolate the fusion protein or detect its expression within cells or tissues.

  1. Draber, P. et al. (1992) Hybridoma 11, 385-390.
  2. Hayashibe, K. et al. (1990) J. Immunoassay 11, 89-95.
  3. Shapiro, S. and Kimmel, B. (1987) J. Immunol. Methods 97, 275-279.

Application References

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This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

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