Assertion: tryptophan | /r/HasProperty | identified as major oxidation sites
Facets:
value: in proteins
type: LOCATION
value: during the last 30 years
type: TEMPORAL
Source sentences:
text: During the last 30 years, cysteine, histidine, methionine, phenylalanine, tryptophan, and tyrosine residues were identified as major oxidation sites in proteins because of the high reactivity of sulfur atoms and aromatic rings toward various reactive oxygen species.