Task: Please give me a molecule SMILES based on the text description below.
Description: The molecule is an amino acid zwitterion arising from transfer of two protons from the carboxy to the amino groups of L-selenocystathionine; major species at pH 7.3. It is a tautomer of a L-selenocystathionine.
Result: [NH3+][C@@H](CC[Se]C[C@H]([NH3+])C(=O)[O-])C(=O)[O-]
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
[NH3+][C@@H](CC[Se]C[C@H]([NH3+])C(=O)[O-])C(=O)[O-]
(2S)-2-azaniumyl-4-[(2R)-2-azaniumyl-2-carboxylatoethyl]selanylbutanoate
The molecule is an amino acid zwitterion arising from transfer of two protons from the carboxy to the amino groups of L-selenocystathionine; major species at pH 7.3. It is a tautomer of a L-selenocystathionine.