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Methionine is an essential nonpolar amino acid, and a lipotropic. Methionine and cysteine are the only sulfur-containing proteinogenic amino acids. The methionine derivative S-adenosyl methionine (SAM) serves as a methyl donor. Methionine plays a role in cysteine, carnitine and taurine synthesis by the transsulfuration pathway, lecithin production, the synthesis of phosphatidylcholine and other phospholipids. Improper conversion of methionine can lead to atherosclerosis. Methionine, a chelating agent, is one of only two amino acids encoded by a single codon (AUG) in the standard genetic code (tryptophan, encoded by UGG, is the other). The codon AUG is also significant, in that it carries the Start message for a ribosome to begin protein translation from mRNA. As a consequence, methionine is incorporated into the N-terminal position of all proteins in eukaryotes and archaea during translation, although it is usually removed by post-translational modification. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See for details. Source: Wikipedia, Methionine (Wikipedia)

A sulfur containing essential amino acid that is important in many body functions. It is also a chelating agent for heavy metals. Source: National Library of Medicine, MeSH 2006

Methionine is an essential nonpolar hydrophobic amino acid. It provides sulfur for other sulfur-containing compounds and is important in the transfer of methyl groups. Methionine is important in cysteine, carnitine, and taurine synthesis by the transsulfuration pathway, lecithin production, and the synthesis of phosphatidylcholine and other phospholipids.(Information from Wikipedia 9/15/06). Source: Regenstrief LOINC

Methionine is a primary marker for homocystinuria, hypermethioninemia, methylene tetrahydrofola. It is also a secondary marker for methylmalonic aciduria and homocystinuria. Source: Regenstrief LOINC

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Tag Language Translation
zh-CN Chinese (China) 蛋氨酸
Synonyms: Met;甲硫基丁氨酸;甲硫氨酸
fr-CA French (Canada) Méthionine
et-EE Estonian (Estonia) Metioniin
es-ES Spanish (Spain) Metionina
it-IT Italian (Italy) Metionina
tr-TR Turkish (Turkey) Metiyonin
ru-RU Russian (Russian Federation) Метионин
nl-NL Dutch (Netherlands) methionine
fr-BE French (Belgium) Méthionine