methionine (redirected from methionine deficiency)

methionine /me·thi·o·nine/ (Met) (M) (me-thi´o-nen) a naturally occurring, essential amino acid that furnishes both methyl groups and sulfur necessary for normal metabolism. Labeled with carbon 11, it is used in positron emission tomography for detection of neoplasms.

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me·thi·o·nine (m-th-nn)

n. Abbr. Met

A sulfur-containing essential amino acid obtained from various proteins or prepared synthetically and used as a dietary supplement and in pharmaceuticals.

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methionine

(mthī´nēn´),
n one of the essential amino acids. See also amino acid.

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methionine

Met; a sulfur-containing amino acid occurring in proteins, which is an essential component of the diet of animals.

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methionine deficiency

exacerbates deficiencies of choline and vitamin B₁₂.

methionine enkephalin

met-enkephalin; see enkephalin.

methionine sulfoximine

the convulsant agent produced in flour by the agene process. Causes hysteria in dogs, ferrets, rabbits and cats, but other species are not affected.