methionine

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methionine

 [mĕ-thi´o-nēn]
a sulfur-containing amino acid, one of the essential amino acids, furnishing both methyl groups and sulfur necessary for metabolism.

me·thi·o·nine (Met, M),

(me-thī'ō-nēn),
The l-isomer is a nutritionally essential amino acid and the most important natural source of "active methyl" groups in the body, hence usually involved in methylations in vivo; the dl-form is used as an adjunct in the treatment of liver diseases.

methionine

(mə-thī′ə-nēn′)
n.
A sulfur-containing essential amino acid, C5H11NO2S, obtained from various proteins or prepared synthetically and used as a dietary supplement and in pharmaceuticals.

me·thi·o·nine

(me-thī'ō-nēn)
A nutritionally essential amino acid and the most important natural source of "active methyl" groups in the body, hence usually involved in methylations in vivo.

methionine

An antidote used to treat paracetamol poisoning from overdose. A drug used in combination with paracetamol to protect the liver against the serious damage that is caused by deliberate overdosage. A brand name of the combination is Paradote.
Methionineclick for a larger image
Fig. 221 Methionine . Molecular structure.

methionine (M, Met)

one of 20 AMINO ACIDS common in proteins. It has an ‘R’ group with a nonpolar structure and is relatively insoluble in water. See Fig. 221 . The ISOELECTRIC POINT of methionine is 5.7.

me·thi·o·nine

(M) (me-thī'ō-nēn)
The l-isomer is a nutritionally essential amino acid and the most important natural source of "active methyl" groups in the body.