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[mass noun] A hydrophilic amino acid which is a constituent of most proteins.
- ‘Hydroxyl radicals oxidize amino acids such as lysine, serine, arginine, and proline.’
- ‘The active site of trypsin involves a catalytic triad consisting of the amino acids serine, histidine and aspartic acid.’
- ‘In animal cells serine, threonine and tyrosine are the amino acids subject to phosphorylation.’
- ‘The overall photorespiratory cycle is also linked to amino acid metabolism in that glycine, serine, glutamate, and glutamine are metabolized at high rates.’
- ‘All of these silks are composed of protein chains in which the amino acids glycine, alanine, and serine dominate.’
Late 19th century: from Latin sericum silk + -ine.
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