Definition of methionine in English:
A sulfur-containing amino acid that is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.
- They fix nitrogen and so contain high quality protein, including the essential amino acids methionine and cystine.
- The oxidation sites of alpha-crystallin are considered to be methionine, cysteine and tryptophan amino acid residues.
- For example, eggs are high in alanine and methionine; whey protein is high in tryptophan and threonine.
1920s: from methyl + Greek theion 'sulfur'.
Definition of methionine in:
- British & World English dictionary
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