RCSB PDB - CYS Ligand Summary Page

CYS

CYSTEINE

Created:1999-07-08
Last modified:  2024-09-27

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Chemical Details

Formal Charge0
Atom Count14
Chiral Atom Count1
Bond Count13
Aromatic Bond Count0
2D diagram of CYS

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Chemical Component Summary

NameCYSTEINE
Systematic Name (OpenEye OEToolkits)(2R)-2-amino-3-sulfanyl-propanoic acid
FormulaC3 H7 N O2 S
Molecular Weight121.158
TypeL-PEPTIDE LINKING

Chemical Descriptors

TypeProgramVersionDescriptor
SMILESACDLabs10.04O=C(O)C(N)CS
SMILESCACTVS3.341N[CH](CS)C(O)=O
SMILESOpenEye OEToolkits1.5.0C(C(C(=O)O)N)S
Canonical SMILESCACTVS3.341 N[C@@H](CS)C(O)=O
Canonical SMILESOpenEye OEToolkits1.5.0 C([C@@H](C(=O)O)N)S
InChIInChI1.03 InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1
InChIKeyInChI1.03 XUJNEKJLAYXESH-REOHCLBHSA-N

Drug Info: DrugBank

DrugBank IDDB00151 
NameCysteine
Groups
  • nutraceutical
  • approved
DescriptionA thiol-containing non-essential amino acid that is oxidized to form cystine.
Synonyms
  • (2R)-2-amino-3-mercaptopropanoic acid
  • Cysteine hydrochloride
  • (R)-2-Amino-3-mercaptopropanoic acid
  • Cysteinum
  • (2R)-2-amino-3-sulfanylpropanoic acid
Brand Names
  • Hepatasol
  • Distilpure Msm
  • Nouress
  • Primene 10%
  • ProcalAmine
IndicationFor the prevention of liver damage and kidney damage associated with overdoses of acetaminophen
Categories
  • Amino Acids
  • Amino Acids, Neutral
  • Amino Acids, Peptides, and Proteins
  • Amino Acids, Sulfur
  • Caloric Agents
CAS number52-90-4

Drug Targets

NameTarget SequencePharmacological ActionActions
Glutamate--cysteine ligase regulatory subunitMGTDSRAAKALLARARTLHLQTGNLLNWGRLRKKCPSTHSEELHDCIQKT...unknown
Glutamate--cysteine ligase catalytic subunitMGLLSQGSPLSWEETKRHADHVRRHGILQFLHIYHAVKDRHKDVLKWGDE...unknown
Aspartate aminotransferase, cytoplasmicMAPPSVFAEVPQAQPVLVFKLTADFREDPDPRKVNLGVGAYRTDDCHPWV...unknownsubstrate
Aspartate aminotransferase, mitochondrialMALLHSGRVLPGIAAAFHPGLAAAASARASSWWTHVEMGPPDPILGVTEA...unknownsubstrate
Cystathionine gamma-lyaseMQEKDASSQGFLPHFQHFATQAIHVGQDPEQWTSRAVVPPISLSTTFKQG...unknown
View More
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682

Related Resource References

Resource NameReference
PubChem 5862, 6419722
ChEMBL CHEMBL863
ChEBI CHEBI:17561, CHEBI:35235
CCDC/CSD CYSCLM11, EMUFID, LOCJET09, AHIMEL, EMUFEZ, BOWKOO07, LOCJET08, BOWKOO05, LOCJET01, BOWKOO06, LOCJET07, LOCJET05, BOWKOO03, LOCJET06, LOCLOF, LOCJET04, LOCJET03, BOWKOO08, HUWNUL, BOWKOO, BOWKOO01, LOCJET02, HIDGOQ, BOWKOO04, BOWKOO02, LOCLOF01, HUWNOF, LOCJET, FOZZIG, BOQCUF02, BOQCUF05, BOQCUF04, BOQCUF03, BOQCUF01, EMOJAT, BOQCUF06, BOQCUF07, BOQCUF08, BOQCUF09, BOQCUF10