http://articles.mercola.com/sites/articles/archive/2002/06/08/pyrrolysine.aspxOhio State University scientists have discovered a new amino acid, which they have dubbed pyrrolysine. Amino acids are the building blocks of proteins, which are essential components of the human body and other living things. Pyrrolysine is the 22nd aminoenCommunityServer 2008.5 SP1 (Build: 31106.3070)