Task: Please create a text description for a molecule.
Molecule SMILES: [NH3+][C@H](C(=O)[O-])[C@H](O)CO
Constraint: Answer the question with complete sentences.
Result: The molecule is an amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of 4-hydroxy-L-threonine; major species at pH 7.3. It is a tautomer of a 4-hydroxy-L-threonine.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
(2S,3S)-2-azaniumyl-3,4-dihydroxybutanoate
The molecule is an amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of 4-hydroxy-L-threonine; major species at pH 7.3. It is a tautomer of a 4-hydroxy-L-threonine.