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Regulation of amelogenin gene expression
1Department of Anatomy and Histology, University of Pennnsylvania School of Dental Medicine, Philadelphia 19104, USA.
Critical Reviews in Eukaryotic Gene Expression
|April 14, 1999
Summary
The amelogenin gene, crucial for tooth development, shows tooth-specific and developmental regulation. Its alternative splicing patterns vary across species, leading to diverse amelogenin proteins.
Area of Science:
- Biochemistry
- Developmental Biology
- Genetics
Background:
- The amelogenin gene is critical for tooth enamel formation.
- Its expression is highly regulated during tooth development.
- Amelogenin genes are present on both X and Y chromosomes in some species.
Purpose of the Study:
- To investigate the conservation and alternative splicing of amelogenin genes across species.
- To understand the implications of alternative splicing on amelogenin protein diversity.
Main Methods:
- Gene cloning and cDNA analysis of amelogenin genes from various species.
- Analysis of alternative splicing patterns in murine amelogenin genes.
Main Results:
- Coding and upstream regions of amelogenin genes are conserved across mammals.
- The murine amelogenin gene undergoes extensive alternative splicing, producing up to 9 different mRNAs.
- Alternative splicing patterns differ between species and during development.
Conclusions:
- The amelogenin gene is a highly conserved gene with significant alternative splicing.
- Variations in alternative splicing contribute to amelogenin protein diversity during tooth development.