The sequence of Met-enkephalin is Tyr-Gly-Gly-Phe-Met. The related neuropeptide, Leu-enkephalin, differs only in its C-terminal residue. Try to locate the following features before identifying them with these buttons: The amino (N) and carboxyl (C) termini. Color Blue: The four peptide bonds. Color Black: The five a-carbons. Color Black, the carbon atoms in the R-groups of: Tyr; Gly; Phe; Met. Use the adjacent frame to view the individual amino acids if necessary. Coordinates are from the X-ray crystal structure of Met-enkephalin. Structures of this and several other related peptides are described at Neuropeptide Structures.
Use the adjacent frame to view the individual amino acids if necessary. Coordinates are from the X-ray crystal structure of Met-enkephalin. Structures of this and several other related peptides are described at Neuropeptide Structures.
