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The Amino Acids

These diagrams of the 20 amino acids which occur naturally in proteins have been produced by previous PPS student Jens J Loesel.

They illustrate the chirality of the amino acids: bonds marked indicate respectively bonds "going into the screen", (dashed lines) and bonds "coming out of the screen" (solid lines). The narrow end of these bonds is in the plane of the screen and represents the chiral centre.

Glycine Alanine Valine
Leucine Isoleucine Serine
Threonine Aspartic Acid Glutamic Acid
Asparagine Glutamine Lysine
Arginine Cysteine Methionine
Histidine Proline Phenylalanine
Tyrosine Tryptophan

Last updated 9th Oct '96