Ligand name: CYSTEINESULFONIC ACID
PDB ligand accession: OCS
DrugBank: DB03661
PubChem: 72886
ChEMBL: n/a
InChI Key: XVOYSCVBGLVSOL-REOHCLBHSA-N
SMILES: C(C(C(=O)O)N)S(=O)(=O)O

ClassyFire chemical classification:

• Kingdom: Organic compounds
  • Superclass: Organic acids and derivatives
    • Class: Carboxylic acids and derivatives
      • Subclass: Amino acids, peptides, and analogues

List of proteins that are targets for OCS

#	DrugDomain Data	UniProt Accession	Protein name	Drug Action	Affinity data
1	P18031_OCS	P18031	Tyrosine-protein phosphatase non-receptor	inhibitor
2	O95696_OCS	O95696	Bromodomain-containing protein 1	n/a
3	P30305_OCS	P30305	M-phase inducer phosphatase	inhibitor
4	P07711_OCS	P07711	Procathepsin L (EC	inhibitor