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A Protocol for Multiple Gene Knockout in Mouse Small Intestinal Organoids Using a CRISPR-concatemer
Published on: July 12, 2017
A mouse knockout library for secreted and transmembrane proteins.
Tracy Tang1, Li Li, Jerry Tang
1Department of Molecular Biology, Genentech, Inc., South San Francisco, California, USA.
Nature Biotechnology
|June 22, 2010
Summary
Researchers created knockout mice for 472 genes, revealing widespread effects on development, metabolism, and major organ systems. This resource aids in understanding gene function and identifying potential drug targets.
Area of Science:
- Genetics and Genomics
- Pharmacology
- Physiology
Background:
- Understanding gene function is crucial for biological research and drug discovery.
- Secreted and membrane proteins represent a significant class of drug targets.
- Large-scale knockout organism collections are valuable resources for functional genomics.
Purpose of the Study:
- To create and phenotypically characterize knockout mice for 472 genes encoding secreted and membrane proteins.
- To establish a comprehensive resource for studying the functions of these genes.
- To identify potential therapeutic targets by assessing phenotypic alterations.
Main Methods:
- Utilized retroviral insertion and homologous recombination to generate knockout mice.
- Disrupted 472 specific genes in the mouse genome.
- Conducted systematic phenotypic screening across multiple physiological systems.
Main Results:
- The majority of generated knockout mouse lines exhibited altered phenotypes.
- Observed alterations in embryonic development, metabolism, immune, nervous, and cardiovascular systems.
- Established a valuable resource of gene-specific mouse mutants.
Conclusions:
- Disruption of secreted and membrane protein genes frequently leads to observable phenotypes.
- This study provides a foundational resource for future research into gene function and disease.
- The generated knockout mice offer significant potential for identifying novel drug targets.

