Amino acids can be broken up into groups: Nonpolar, Hydrophobic -Alanine -Valine -Leucine -Isoleucine -Phenylalanine -Tryptophan -Methionine -Proline Polar, Uncharged -Glycine -Serine -Threonine...
There are 20 different amino acids in the human body. but 21 in troy
standard amino acid (a building block of proteins)
Side group