![](http://www.alamy.com/thumbs/6/C8A823B5-BD7C-42E0-9065-A8156DC8F8CD/DYXMEB.jpg)
Met-enkephalin molecule. Enkephalins are small peptides that play a role in pain sensation.
Met-enkephalin molecule. Enkephalins are small peptides that play a role in pain sensation and that are natural, endogenous ligands of opioid receptors. Atoms are represented as spheres with conventional color coding: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue), sulfur (yellow).
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Keywords: atomic, atoms, biochemistry, biotech, biotechnology, chemical, chemistry, encephalin, endogenous, endorphin, enkephalin, feeling, heroin, ligand, met, met-enkephalin, methionine, molecule, morphine, nociception, opioid, pain, pdb_1plw, peptide, protein, receptor, sensation, structure