adenine

adeniini puhekieltä A base, C5H5N5, found in certain glands and tissues, which pairs with thymine in DNA and uracil in RNA.
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2006, David Markie, 1: Markers, Selection, and Media in Yeast Artificial Chromosome Cloning, Alasdair MacKenzie (editor), YAC Protocols, 2nd Edition, http://books.google.com.au/books?id=3mRAV0k4wVYC&pg=PA2&dq=%22adenine%22&hl=en&sa=X&ei=EFZjU-aGGsKj8AXxsoKQDg&redir_esc=yv=onepage&q=%22adenine%22&f=false page 2,

There are two genes in the adenine biosynthetic pathway of yeast (ADE1 and ADE2) that, apart from producing an absolute requirement for adenine when mutant, also produce a change in colony color.

The HCN pentamer, adenine (a constituent of DNA, RNA and many coenzymes), is one of the most abundant biochemical molecules.