Assertion: amino acid's group | /r/AtLocation | protonated −nh 3 + form
Facets:
value: under biological conditions
type: OTHER
Source sentences:
text: It contains an α-amino group (which is in the protonated −NH 3 + form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO− form under biological conditions), and a side chain lysyl ((CH 2 ) 4 NH 2 ), classifying it as a basic, charged (at physiological pH), aliphatic amino acid.