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Characterization of CArG-binding protein A initially identified by differential display
W J Rushlow1, N Rajakumar, B A Flumerfelt
1Department of Anatomy and Cell Biology, The University of Western Ontario and The London Health Sciences Centre, Canada. wrushlow@julian.uwo.ca
Neuroscience
|December 1, 1999
Summary
Researchers identified a novel gene, CArG-binding protein A, highly expressed in the rat brain. This protein is involved in brain development and serum response element regulation, showing altered expression with nerve growth factor treatment.
Area of Science:
- Neuroscience
- Molecular Biology
- Gene Expression Analysis
Background:
- Investigated gene expression patterns in distinct rat brain regions.
- Identified a novel gene highly enriched near the lateral ventricle.
Purpose of the Study:
- To characterize a newly identified gene and its role in the rat brain.
- To determine if the gene is a homolog of mouse CArG-binding protein A.
- To explore its function in neuronal regulation and development.
Main Methods:
- Differential display technique for gene discovery.
- cDNA sequencing for gene characterization.
- Radiolabeled probes for expression analysis.
- PC12 cell culture and nerve growth factor treatment.
Main Results:
- Identified and sequenced a gene highly enriched in rat brain tissue.
- The gene is the rat homolog of CArG-binding protein A.
- CArG-binding protein A is expressed in neurons and astrocytes.
- Nerve growth factor treatment up-regulates CArG-binding protein A and down-regulates c-fos and zif268.
Conclusions:
- CArG-binding protein A may play a role in rat brain development.
- The protein is implicated in the regulation of the serum response element.
- Suggests a link between CArG-binding protein A, nerve growth factor signaling, and immediate early gene regulation.