methionine C 11

Definition / meaning of methionine C 11

A synthetic amino acid radiolabeled with carbon-11. Acting as a methyl donor, methionine C 11 is incorporated into macromolecules, where it serves as a positron emission tomography (PET) imaging agent for detecting tumors with high rates of protein synthesis.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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