File:L-tryptophan-3D-balls.pngDescriptionL-tryptophan-3D-balls.png This file has no description, and may be lacking other information. Please provide a meaningful description of this
File:L-Tryptophan-3D-balls.pngDescriptionL-Tryptophan-3D-balls.png Ball-and-stick model of the tryptophan molecule, one of the 20 amino acids used to build proteins. This image shows the L isomer