Amino acids (AAs) 3 are organic compounds that contain amino and acid groups (1). Based
on the configuration of glyceraldehyde (L-or D-isomers as introduced by Emil Fischer in …

Based on growth or nitrogen balance, amino acids (AA) had traditionally been classified as
nutritionally essential (indispensable) or non-essential (dispensable) for animals and …

Amino acids (AAs) are defined as organic compounds containing both amino and acid
groups (1). Proteinogenic AAs are AAs that serve as substrates for protein synthesis in …

Amino acids (AAs) are required for syntheses of proteins and low-molecular-weight
substances with enormous physiological importance. Since 1912, AAs have been classified …

Amino acids are necessary for the survival, growth, development, reproduction and health of
all organisms. They were traditionally classified as nutritionally essential or non-essential for …

Here, we compared the traditional nutritional definition of the dispensable and
indispensable amino acids for humans with categorizations based on amino acid …

Amino acids are building blocks for proteins in all animals. Based on growth or nitrogen
balance, amino acids were traditionally classified as nutritionally essential or nonessential …

Amino acids (AA) have enormous physiological importance, serving as building blocks for
proteins and substrates for synthesis of low-molecular-weight substances. Based on growth …

The essentiality of amino acids was recognized early in this century, but it was not until Rose
and his associates discovered threonine in the 1930s that diets containing only purified …

Amino acids (AAs) are building blocks of protein. Eight AAs (Ala, Asn, Asp, Glu, Gln, Gly, Pro,
and Ser) are formed by all animals, whereas de novo synthesis of Arg occurs in a species …