Assertion: histidine's dipeptide | /r/MadeOf | threonine
Facets:
value: on their n-terminus
type: LOCATION
Source sentences:
text: They metabolized single L-amino acids, such as L-arginine, L-glutamine, L-phenylalanine, L-serine and L-tryptophan and showed high metabolic rates when fed with dipeptides containing alanine, valine, serine and threonine on their N-terminus.