SMILES: C1=NC(=C2C(=N1)N(C=N2)[C@H]3[C@@H]([C@@H]([C@H](O3)CSCC[C@@H](C(=O)[O-])[NH3+])O)O)N
Description: The molecule is zwitterionic form of S-adenosyl-L-homocysteine arising from migration of a proton from the carboxy group to the alpha-amino group; major species at pH 7.3. It is a tautomer of a S-adenosyl-L-homocysteine.