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Reporter Genes

Reporter Genes

Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.

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Updated: Feb 21, 2026

Tracing Gene Expression Through Detection of β-galactosidase Activity in Whole Mouse Embryos

Tracing Gene Expression Through Detection of β-galactosidase Activity in Whole Mouse Embryos

Published on: June 26, 2018

β-Galactosidase.

Pradeep D Uchil, Arvindhan Nagarajan, Priti Kumar

Cold Spring Harbor Protocols

|October 5, 2017

Summary

This summary is machine-generated.

Beta-galactosidase serves as a reporter for gene expression analysis and a histochemical marker. This review covers its enzymatic reactions and activity assay methods.

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Last Updated: Feb 21, 2026

Tracing Gene Expression Through Detection of β-galactosidase Activity in Whole Mouse Embryos

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Synthesis of Indoxyl-glycosides for Detection of Glycosidase Activities

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Area of Science:

Biochemistry
Molecular Biology
Genetics

Background:

Beta-galactosidase is a key enzyme utilized in molecular biology.
Its applications include quantitative gene expression analysis and histochemical marking.
Understanding its enzymatic properties is crucial for accurate biological assays.

Purpose of the Study:

To review the enzymatic reactions catalyzed by beta-galactosidase.
To provide an overview of the methods used for assaying beta-galactosidase activity.
To highlight the significance of beta-galactosidase in biological research.

Main Methods:

Literature review of enzymatic reactions.
Summary of established beta-galactosidase assay techniques.
Discussion of reporter gene applications.

Main Results:

Detailed description of beta-galactosidase's catalytic functions.
Compilation of various quantitative and qualitative assay methods.
Emphasis on its role in monitoring gene expression levels.

Conclusions:

Beta-galactosidase is a versatile tool in biological research.
Accurate assay methods are essential for reliable gene expression studies.
Its dual role as a reporter and marker underscores its importance.