| Article on Leucine | | | | leucine residues on two polypeptide chains |
| Leucine For Health - What To Do | | | | interdigitate to form a stable dimer. Configuration of |
| Leucine is one of the 20 most common amino acids | | | | a DNA-binding protein in which leucine residues on |
| on Earth, and coded for by DNA. It is isomeric with | | | | two protein alpha-helices interdigitate in zipper fashion |
| isoleucine. Nutritionally, in humans, leucine is an | | | | to stabilize the protein. A structural motif |
| essential amino acid. Amino Acid One of three | | | | characteristic of DNA-binding proteins consisting of a |
| branched-chain amino acids (the others are valine and | | | | protein dimer formed by two interacting a helices |
| isoleucine) that enhance energy, increase endurance, | | | | from separate proteins. A protein domain that |
| and aid in muscles by equalizing synthesis and | | | | mediates dimer formation and is normally adjacent to |
| breakdown of proteins. | | | | a basic DNA-binding domain. It is characterized by a |
| Leucine zipper: | | | | pattern of five leucine residues each separated by six |
| A secondary protein structure in which projecting | | | | residues. |