Definition of methionine in English:
methionine
noun mɪˈθʌɪəniːnməˈθaɪəˌnin
mass nounBiochemistry A sulphur-containing amino acid which is a constituent of most proteins and is essential to the diet of vertebrates.
Chemical formula: CH₃S(CH₂)₂CH(NH₂)COOH
Example sentencesExamples
- They fix nitrogen and so contain high quality protein, including the essential amino acids methionine and cystine.
- For example, eggs are high in alanine and methionine; whey protein is high in tryptophan and threonine.
- Homocysteine is an intermediary metabolite of essential dietary amino acid methionine.
- The oxidation sites of alpha-crystallin are considered to be methionine, cysteine and tryptophan amino acid residues.
- Contents of glutamine, asparagine, methionine, and tryptophan in the tissues were not determined by this method.
Origin
1920s: from methyl + Greek theion 'sulphur'.
Definition of methionine in US English:
methionine
nounməˈθaɪəˌninməˈTHīəˌnēn
Biochemistry A sulfur-containing amino acid that is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.
Chemical formula: CH₃S(CH₂)₂CH(NH₂)COOH
Example sentencesExamples
- For example, eggs are high in alanine and methionine; whey protein is high in tryptophan and threonine.
- Contents of glutamine, asparagine, methionine, and tryptophan in the tissues were not determined by this method.
- The oxidation sites of alpha-crystallin are considered to be methionine, cysteine and tryptophan amino acid residues.
- They fix nitrogen and so contain high quality protein, including the essential amino acids methionine and cystine.
- Homocysteine is an intermediary metabolite of essential dietary amino acid methionine.
Origin
1920s: from methyl + Greek theion ‘sulfur’.