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A growth arrest-specific (gas) gene codes for a membrane protein
G Manfioletti1, M E Ruaro, G Del Sal
1International Centre for Genetic Engineering and Biotechnology, Trieste, Italy.
Molecular and Cellular Biology
|June 1, 1990
Summary
Growth arrest-specific gene 3 (gas3) is regulated post-transcriptionally by serum. The gas3 protein is a transmembrane glycoprotein with similarity to mitochondrial oxyreductases, indicating its cellular role.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- Growth arrest-specific (gas) genes are identified, showing negative regulation by serum.
- The gas3 gene is a specific focus within this set of growth arrest genes.
Purpose of the Study:
- To conduct a detailed analysis of the gas3 gene.
- To investigate the regulatory mechanisms of gas3 expression in response to serum.
- To characterize the protein product encoded by the gas3 gene.
Main Methods:
- Kinetic analysis of gene regulation under varying serum conditions.
- Post-transcriptional regulation investigation.
- Nucleotide sequence analysis to predict protein structure.
- In vitro translation to confirm protein product characteristics.
Main Results:
- The gas3 gene is regulated at the post-transcriptional level.
- The deduced protein sequence exhibits similarity to mitochondrial oxyreductases.
- In vitro translation confirms the gas3 protein is a transmembrane glycoprotein.
Conclusions:
- Serum-mediated regulation of gas3 occurs post-transcriptionally.
- The gas3 protein is a transmembrane glycoprotein with potential mitochondrial functions.
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