Abstract
Reporter mice transgenically expressing the bacterial (E. coli) lacZ gene encoding β-galactosidase (β-gal, EC 3.2.1.23) are a versatile and extensively used tool to study gene expression and cell lineage patterns. Enzymatic activity of the β-gal reporter can be effectively visualized at cellular resolution either histochemically using 5-bromo-4-chloro-3-indolyl-β-d-galactopyranoside (X-gal) or by immunofluorescent detection using a β-gal-specific antibody. Here, we summarize protocols for the localization of β-gal expressing cells in whole embryos or organs as well as in histological tissue sections of lacZ reporter mice and discuss their limitations and common pitfalls.
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Acknowledgments
We thank Dr. Maria TK Zaldivia for critically reading the manuscript. This work was supported by the DFG (FOR 2060 project SCHM 2371/1) to HS.
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Krämer, M.S., Feil, R., Schmidt, H. (2021). Analysis of Gene Expression Using lacZ Reporter Mouse Lines. In: Singh, S.R., Hoffman, R.M., Singh, A. (eds) Mouse Genetics . Methods in Molecular Biology, vol 2224. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1008-4_2
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DOI: https://doi.org/10.1007/978-1-0716-1008-4_2
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