SMILES: C1=CC=C2C(=C1)C(=CN2)CC(=O)NCCCC[C@@H](C(=O)[O-])[NH3+]
Description: The molecule is zwitterionic form of N(6)-[(indol-3-yl)acetyl]-L-lysine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3. It is a tautomer of a N(6)-[(indol-3-yl)acetyl]-L-lysine.