CSU

CYSTEINE-S-SULFONIC ACID

Created:	2000-08-22
Last modified:	2024-09-27

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20 entries where CSU is found in a polymer sequence

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Chemical Details
Formal Charge	0
Atom Count	18
Chiral Atom Count	1
Bond Count	17
Aromatic Bond Count	0

2D diagram of CSU

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Chemical Component Summary
Name	CYSTEINE-S-SULFONIC ACID
Systematic Name (OpenEye OEToolkits)	(2R)-2-amino-3-sulfosulfanyl-propanoic acid
Formula	C₃ H₇ N O₅ S₂
Molecular Weight	201.221
Type	L-PEPTIDE LINKING

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	10.04	O=S(=O)(O)SCC(C(=O)O)N
SMILES	CACTVS	3.341	N[CH](CS[S](O)(=O)=O)C(O)=O
SMILES	OpenEye OEToolkits	1.5.0	C(C(C(=O)O)N)SS(=O)(=O)O
Canonical SMILES	CACTVS	3.341	N[C@@H](CS[S](O)(=O)=O)C(O)=O
Canonical SMILES	OpenEye OEToolkits	1.5.0	C([C@@H](C(=O)O)N)SS(=O)(=O)O
InChI	InChI	1.03	InChI=1S/C3H7NO5S2/c4-2(3(5)6)1-10-11(7,8)9/h2H,1,4H2,(H,5,6)(H,7,8,9)/t2-/m0/s1
InChIKey	InChI	1.03	NOKPBJYHPHHWAN-REOHCLBHSA-N

Drug Info: DrugBank

DrugBank ID	DB04370
Name	S-sulphocysteine
Groups	experimental
Synonyms	S-sulphocysteine L-cysteine S-sulfate S-sulfocysteine Cysteine-S-sulfate Cysteinyl-S-sulfonate Cysteine-S-sulfonate Cysteinyl-S-sulfonic acid S-sulpho-L-cysteine S-sulfo-L-cysteine
Categories	Amino Acids Amino Acids, Neutral Amino Acids, Peptides, and Proteins Amino Acids, Sulfur Sulfhydryl Compounds Sulfur Compounds
CAS number	1637-71-4

Related Resource References

Resource Name	Reference
PubChem	115015, 7068808
ChEMBL	CHEMBL457665
ChEBI	CHEBI:27891

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.