Study of Mouse c2-HS Glycoprotein and Its Role in Insulin Receptor Inhibition
Author Information
Author(s): VIVIAN J. CINTRON, MINORU S. H. KO, KENNETH D. CHI, JASON P. GROSS, POTHUR R. SRINIVAS, ANTON SCOTT GOUSTIN, GEORGE GRUNBERGER
Primary Institution: Wayne State University School of Medicine
Hypothesis
The mouse Ahsg gene is the true ortholog of the human AHSG gene and functions as an inhibitor of insulin receptor tyrosine kinase.
Conclusion
The study concludes that the mouse Ahsg gene is indeed the true ortholog of the human AHSG gene, demonstrating similar inhibitory effects on insulin receptor activity.
Supporting Evidence
- Mouse c2-HSG inhibits insulin-stimulated IR autophosphorylation and DNA synthesis.
- The mouse Ahsg gene is located at 16 cM on chromosome 16, adjacent to the Dagk3 gene.
- Recombinant mouse c2-HSG was shown to inhibit insulin receptor tyrosine kinase activity in vitro.
Takeaway
This study found that a protein in mice, called c2-HS glycoprotein, can stop insulin from working properly, just like a similar protein in humans.
Methodology
The study involved cloning and sequencing the mouse Ahsg gene, mapping its chromosomal location, and testing its function as an insulin receptor tyrosine kinase inhibitor using recombinant protein assays.
Limitations
The study did not sequence downstream of exon 4, leaving some aspects of the gene's organization unaddressed.
Statistical Information
P-Value
p=0.008
Statistical Significance
p<0.05
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