n.
One of the essential amino acids , present in most common proteins and particularly abundant in hemoglobin .
One of the first amino acids discovered (1819), it is used in biochemical research and as a nutritional supplement.
n.
One of the essential amino acids , present in most common proteins and particularly abundant in hemoglobin .
One of the first amino acids discovered (1819), it is used in biochemical research and as a nutritional supplement.
Britannica Concise Encyclopedia. Краткая энциклопедия Британика. 2012