Amino acids are organic compounds containing an amino group (-NH2) and a carboxyl group (-COOH). This is the general structure of an amino acid:
This is a table of the 20 amino acids derived from proteins. The table contains the amino acid’s name, common abbreviation and symbol, linear structure and skeletal structure.
Amino acids are often grouped by the chemistry of the side chain. These groups are polar-uncharged, polar-charged and non-polar.
Eight of the 20 amino acids are polar-uncharged: Asparagine, cysteine, glutamine, histidine, serine, threonine, tryptophan and tyrosine.
Eight of the 20 amino acids are non-polar: alanine, glycine, isoleucine, leucine, methionine, phenylalanine, proline, and valine.
The final four are polar-charged: arginine, aspartic acid, glutamic acid, and lysine.
A downloadable study sheet of this information is available here.