Task: Please create a text description for a molecule.
SMILES: N[C@@H](CS)C(=O)N[C@@H](CS)C(=O)N[C@@H](Cc1cnc[nH]1)C(=O)N[C@@H](Cc1cnc[nH]1)C(=O)O
Constraint: Answer the question with full sentences.
Result: The molecule is a tetrapeptide composed of two L-cysteine units joined to two L-histidine units by a peptide linkage. It has a role as a metabolite. It derives from a L-cysteine and a L-histidine.
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#}
N[C@@H](CS)C(=O)N[C@@H](CS)C(=O)N[C@@H](Cc1cnc[nH]1)C(=O)N[C@@H](Cc1cnc[nH]1)C(=O)O
(2S)-2-[[(2S)-2-[[(2R)-2-[[(2R)-2-amino-3-sulfanylpropanoyl]amino]-3-sulfanylpropanoyl]amino]-3-(1H-imidazol-5-yl)propanoyl]amino]-3-(1H-imidazol-5-yl)propanoic acid
The molecule is a tetrapeptide composed of two L-cysteine units joined to two L-histidine units by a peptide linkage. It has a role as a metabolite. It derives from a L-cysteine and a L-histidine.