The Leucine reference article from the English Wikipedia on 24-Jul-2004
(provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Leucine

Sponsorship the way you would do it
Image:Leu-stick.png

Leucine is one of the 20 most common amino acids on Earth, and coded for by DNA. Its chemical composition is identical to that of isoleucine, but its atoms are arranged differently resulting in different properties. Nutritionally, in humans, leucine is an essential amino acid.

This article is a stub. You can help Wikipedia by [ expanding it].