Index to Course Material

Index to Section 2

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