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Embryonic expression of mSharp-1/mDEC2, which encodes a basic helix-loop-helix transcription factor
1Department of Biochemisty and Molecular Biology, Mount Sinai School of Medicine, Box 1020, One Gustave L. Levy Place, New York, NY 10029-6574, USA.
Mechanisms of Development
|August 15, 2002
Summary
Mouse Sharp-1 (mSharp-1), a transcription factor, shows specific expression patterns in developing organs during embryogenesis. Its diverse expression suggests a role in regulating cell differentiation in vertebrates.
Area of Science:
- Developmental Biology
- Molecular Biology
- Genetics
Background:
- Mouse Sharp-1 (mSharp-1) is a basic helix-loop-helix (bHLH) transcription factor.
- mSharp-1 is part of the Hairy/Enhancer of Split (E(Spl)) subfamily, a target of Notch signaling.
- It shares high sequence identity with Stra13.
Purpose of the Study:
- To characterize the expression pattern of mSharp-1 during mouse embryogenesis.
- To investigate the potential role of mSharp-1 in vertebrate development.
Main Methods:
- RNA in situ hybridization was used to analyze mSharp-1 expression.
- Expression was examined from embryonic day 7.5 (E7.5) to E16.5.
Main Results:
- mSharp-1 exhibited specific expression in various developing organs.
- Early expression (E8.5-E12.5) was observed in the brain, heart, eye, olfactory system, and limb buds.
- Later expression (E12.5-E16.5) included the liver, prevertebrae, adrenal, and thyroid glands.
Conclusions:
- The diverse expression pattern of mSharp-1 indicates its potential involvement in regulating cell differentiation.
- mSharp-1 may play a significant role in multiple aspects of vertebrate embryonic development.