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Encyclopedia: Oncogene
An oncogene is a gene with a DNA sequence that causes cancer. Many cells are normally destined to die. In cancer, because of that DNA sequence, those cells survive and proliferate. Most oncogenes req...
en.wikipedia.org/wiki/Oncogene |
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Proto-oncogene: A normal gene which, when altered by mutation, becomes an oncogene that can contribute to cancer. Proto-oncogenes may have many different...
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1. Dominant and the genes have been termed proto-oncogenes. The distinction between the terms proto-oncogene and oncogene relates to the activity of the protein product of the gene. A proto-oncogene is a gene whose protein product has the capacity to induce cellular transformation given it sustains some genetic insult.
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Of the many known oncogenes, all but a few are derived from normal cellular genes (i.e., proto-oncogenes) whose products participate in cellular...
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Proto-Oncogenes and Tumor-Suppressor Genes As noted in the previous section, tumor cells differ from their normal counterparts in many respects: growth...
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All these oncogenes act as dominants; if the cell has one normal gene (sometimes called a proto-oncogene) at a locus and one mutated gene (the oncogene), the abnormal product takes control. It is estimated that fully 1% of the 25,000 or so genes in the human genome are proto-oncogenes.
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It is a sequence of DNA that has been altered or mutated from its original form, the proto-oncogene (see mutation). Proto-oncogenes promote the specialization and division of normal cells. A change in their genetic sequence can result in uncontrolled cell growth, ultimately causing the formation of a cancerous tumour.
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Hutchinson encyclopedia article about Proto-oncogenes. Proto-oncogenes. Information about Proto-oncogenes in the Hutchinson encyclopedia. Oncogenes arise from mutations in genes (proto-oncogenes) found in all normal cells. In their mutated form, they are found in tumour cells and in viruses that are capable of...
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Hutchinson encyclopedia article about Proto oncogenes. Proto oncogenes. Information about Proto oncogenes in the Hutchinson encyclopedia. (redirected from Proto oncogenes)
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