<unk>  (abbreviated as<unk>  or N;<unk>  or B represent either<unk>  or aspartic acid) is one of the 20 most common natural amino acids on Earth. It has carboxamide as the side chain's functional group. It is considered a non-essential amino acid.
A reaction between<unk>  and reducing sugars or reactive carbonyls produces acrylamide (acrylic amide) in food when heated to sufficient temperature, i.e. baking. These occur primarily in baked goods such as french fries, potato chips, and roasted coffee.
Its codons are AAU and AAC.
Asparagine
Arginine
Phenylalanine
Ethionine
Citrulline
Cysteamine 
Tyrosine
Acetylleucine