Researchers at the Johns Hopkins University have found molecular evidence of how a biochemical process controls the lengths of protective chromosome tips, a potentially significant step in ultimately understanding cancer growth and aging.
In a paper recently published as the cover story in the online journal eLife, biologist David C. Zappulla and graduate student Evan P. Hass show how in baker’s yeast cells, two proteins work together to usher a key enzyme to the chromosome tip, the telomere, to restore its length, which diminishes with each round of cell division.
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