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Fluorescent bacteria reveal steps in vitamin B-12 synthesis

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Raquel Harper

Vitamin B-12 (cobalamin) helps in the synthesis of DNA and red blood cells and is important in the maintenance of the insulation layer that surrounds nerve cells. Scientists know how virtually every molecule needed for life is made, but vitamin B-12 has remained a puzzle for decades. Researchers may have recently discovered, quite by accident, how cells manufacture the vitamin. After talking to a colleague who had discovered that adding laundry whitener (calcofluor) to a bacterium strain in a lab dish produced fluorescence, Graham C. Walker from the department of biology at MIT in...Read full article

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    Published: April 2006
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