A hydrophilic amino acid that is a constituent of most proteins.
- Chemical formula: CH2OHCHNH2COOH.
- 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.
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