The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen, though other elements are found in the side-chains of certain amino acids. About 500 amino acids are known and can be classified in many ways.
Friendly is a town in Tyler County, West Virginia, in the United States.
Luxury Lakefront Golf Community with Gated Access. Uwharrie Point at Badin Lake, NC. There is a land of serenity and peacefulness, of gentle breezes and cheerful song, where everything is in total harmony. It is a world apart. Quiet.