[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][=C][C][S][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a sulfur-containing amino acid in which the gamma-carbon atoms of two molecules of L-aminobutyric acid are joined via a thioether linkage. It is a byproduct of cystathionine-gamma-lyase and a possible human hyperhomocysteinemia marker. It is a sulfur-containing amino acid, a non-proteinogenic L-alpha-amino acid and an organic sulfide. It is functionally related to a L-homocysteine. It is a tautomer of a L-homolanthionine dizwitterion."}]