Abstract
Reporter genes code for proteins that have a unique enzymatic activity and are used to assess the transcriptional properties of DNA elements. The use of reporter genes in transgenic animals provides a rapid method for the detection of transgene expression, which is easily distinguishable from expression of the corresponding endogenous gene of the animal. The regulatory sequences of a chosen gene are fused to a readily assayable protein coding region, examples of which are chloramphenicol acetyl transferase (CAT), β-galactosidase, and luciferase. Sensitive assays are available for each of these proteins that facilitate detection and quantitation of transgene expression. The use of these reporter enzymes allows a more rapid and sensitive method of detection than the analysis of specific transgene transcripts within the transgenic animals. The reporter enzymes described in this chapter are CAT, β-galactosidase, and luciferase.
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References
Gorman, C. M., Moffat, L. F., and Howard, B. H. (1982) Recombinant genomes which express chloramphenicol acetyl transferase in mammalian cells. Mol. Cell. Biol. 2, 1044–1051.
Sleigh, M. J. (1986) A non-chromatographic assay for expression of the chloramphenicol acetyl transferase gene in eucaryotic cells. Anal. Biochem. 156, 251–256.
Fowler, A. V. and Zabin, I. (1983) Purification, structure and properties of hybrid β galactosidase proteins. J. Biol. Chem. 258, 14,354–14,358.
Goring, D. R., Rossant, J., Clapoff, S., Breitman, M. L., and Tsui, L.-C. (1987) In situ detection of β galactosidases in lenses of transgenic mice with a g-crystallin/lacZ gene. Science 235, 456–458.
Shimohama, S., Rosenberg, M. B., Fagan, A. M., Wolff, J. A., Short, M. P., Breakefield, X. O., Friedmann, T., and Gage, F. H. (1989) Grafting genetically modified cells into the rat brain: characteristics of E Coli β-galactosidase as a reporter gene. Mol. Brain. Res. 5, 271–278.
de Wet, J. R., Wood, K. V., DeLuca, M., Helsinki, D. R., and Subrami, S. (1987) Firefly luciferase gene: Structure and expression in mammalian cells. Mol. Cell. Biol 7, 725–137.
Brasier, A. R., Tate, J. E., and Habener, J. F. (1989) Optimized use of the firefly luciferase assay as a reporter gene in mammalian cell lines. BioTechniques 7, 1116–1122.
Nguyen, V. T., Morange, M., and Bensaude, O. (1988) Firefly luciferase luminescence assays using scintillation counters for quantitation in transfected mammalian cells. Anal. Biochem. 171, 404–408.
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© 1993 Humana Press Inc., Totowa, NJ
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Pardy, K. (1993). Reporter Enzyme Assays. In: Murphy, D., Carter, D.A. (eds) Transgenesis Techniques. Methods in Molecular Biology™, vol 18. Humana Press. https://doi.org/10.1385/0-89603-245-0:419
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DOI: https://doi.org/10.1385/0-89603-245-0:419
Publisher Name: Humana Press
Print ISBN: 978-0-89603-245-3
Online ISBN: 978-1-59259-505-1
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