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Updated: Jul 20, 2026
08:03
Maintenance of a Drosophila melanogaster Population Cage
Published on: March 15, 2016
Genetic interactions between Drosophila melanogaster menin and Jun/Fos
Aniello Cerrato1, Michael Parisi, Sonia Santa Anna
1National Institute of Diabetes and Digestive and Kidney Diseases, Department of Health and Human Services, Bethesda, MD 20892, USA. a.cerrato@sun.ceos.na.cnr.it
Developmental Biology
|August 26, 2006
Summary
Menin protein acts as a tumor suppressor by modulating Jun activity. This study explores menin
Area of Science:
- Molecular biology
- Genetics
- Developmental biology
Background:
- Menin is a tumor suppressor protein implicated in preventing multiple endocrine neoplasia.
- Menin interacts with chromatin-modifying complexes and nuclear proteins, including the transcription factor JunD.
- Menin exhibits dual effects on Jun transcription factors, promoting c-Jun activity while inhibiting JunD.
Purpose of the Study:
- To investigate the function of the menin protein in a model organism.
- To explore the relationship between menin and Jun activity during development.
Main Methods:
- Generation of protein-null alleles of Drosophila menin (mnn1).
- Overexpression of Mnn1 protein in Drosophila.
- Analysis of genetic interactions between mnn1 and jun.
- Observation of developmental phenotypes, specifically thoracic closure.
Main Results:
- Drosophila mnn1 protein-null mutants are viable and fertile.
- Localized Mnn1 overexpression leads to thoracic closure defects, suggesting a link to Jun activity.
- Complex genetic interactions between mnn1 and jun were observed across different developmental contexts.
Conclusions:
- Menin plays a role in modulating Jun activity in a context-dependent manner.
- The findings support a conserved function of menin in regulating transcription factor activity during development.
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