CHEBI:139233 - 3,3-dimethylcystein-S-yl group

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ChEBI Name 3,3-dimethylcystein-S-yl group
ChEBI ID CHEBI:139233
ChEBI ASCII Name 3,3-dimethylcystein-S-yl group
Definition A penicillin-derived group formed from benzylpenicillin via cleavage of the β-lactam and thiazolidine rings to afford a dimethyl-substituted cysteine entity able to link to the thiol group of a protein cysteine residue through a sulfur‒sulfur bond.
Stars This entity has been manually annotated by the ChEBI Team.
Download Molfile XML SDF
Formula C5H10NO2S
Net Charge 0
Average Mass 148.205
Monoisotopic Mass 148.04322
SMILES C(C(N)C(S*)(C)C)(=O)O
Roles Classification
Biological Role(s): epitope
The biological role played by a material entity when bound by a receptor of the adaptive immune system. Specific site on an antigen to which an antibody binds.
View more via ChEBI Ontology
ChEBI Ontology
Outgoing 3,3-dimethylcystein-S-yl group (CHEBI:139233) has role epitope (CHEBI:53000)
3,3-dimethylcystein-S-yl group (CHEBI:139233) is a penicillin-derived group (CHEBI:139226)
3,3-dimethylcystein-S-yl group (CHEBI:139233) is substituent group from penicillamine (CHEBI:50868)
IUPAC Name
(1-amino-1-carboxy-2-methylpropan-2-yl)sulfanyl
Synonyms Sources
3,3-dimethylcystein-S-yl ChEBI
penicillamin-S-yl ChEBI
penicillamin-S-yl group ChEBI
Citation Waiting for Citations Type Source
28987997 PubMed citation Europe PMC
Last Modified
06 December 2017