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Characterization of synectin expression and promoter activity
Yufeng Zhang1, Thomas Chittenden, Michael Simons
1Angiogenesis Research Center, Department of Medicine and Pharmacology, Dartmouth Hitchcock Medical Center, One Medical Center drive, Lebanon, NH 03756, USA.
Gene
|November 6, 2004
Summary
Synectin, a PDZ2 protein, is widely expressed in adult tissues and early in mouse embryonic development. Its consistent expression suggests a crucial role in cell signaling pathways.
Area of Science:
- Molecular Biology
- Cell Biology
- Developmental Biology
Background:
- Synectin is a PDZ2 protein known to bind plasma membrane receptors.
- Understanding synectin's expression patterns is crucial for elucidating its cellular functions.
Purpose of the Study:
- To characterize the synectin promoter.
- To conduct a detailed survey of synectin expression in adult and embryonic tissues.
- To investigate the regulation of synectin transcription.
Main Methods:
- Promoter characterization techniques.
- Quantitative expression analysis across various tissues and developmental stages.
- Assessment of transcriptional response to external stimuli like cytokines, growth factors, and hypoxia.
Main Results:
- Synectin is ubiquitously distributed in adult cells and tissues.
- Embryonic expression begins by day 4.5, peaks at day 12.5, and reaches adult levels by day 18.5.
- Synectin transcription levels showed minimal changes when exposed to cytokines, growth factors, or hypoxia.
Conclusions:
- Synectin's early and widespread expression indicates a fundamental role in cellular structure and function.
- The protein's characteristics suggest involvement in mediating outside-in signaling pathways.
- Synectin may act as a key structural protein in cellular communication.