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<p>in 1982. Dr. Barbacid spent the following months extending his research, eventually discovering that the oncogene was a mutated <a href="page.php?w=allele">allele</a> of <a href="page.php?w=HRAS">HRAS</a> and characterizing its activation mechanism.</p>

<p><big> Proto-oncogene </big></p>
<p>A <b>proto-oncogene</b> is a normal gene that could become an oncogene due to mutations or increased <a href="page.php?w=Gene_expression">expression</a>. Proto-oncogenes code for <a href="page.php?w=protein">protein</a>s that help to regulate the <a href="page.php?w=cell_growth">cell growth</a></p><p>
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