Definition of serine in English:


Syllabification: ser·ine
Pronunciation: /ˈserēn, ˈsi(ə)r-, -in


A hydrophilic amino acid that is a constituent of most proteins.
  • Chemical formula: CH2OHCHNH2COOH
More example sentences
  • 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.
  • Hydroxyl radicals oxidize amino acids such as lysine, serine, arginine, and proline.


late 19th century: from Latin sericum 'silk' + -ine4.

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Pronunciation: ˈflipənt
not showing a serious or respectful attitude