CHEBI:53604 - N-acetyl-α-D-galactosaminyl-L-serine residue

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ChEBI Name N-acetyl-α-D-galactosaminyl-L-serine residue
ChEBI ID CHEBI:53604
ChEBI ASCII Name N-acetyl-alpha-D-galactosaminyl-L-serine residue
Definition An L-α-amino acid residue derived from N-acetyl-α-D-galactosaminyl-L-serine.
Stars This entity has been manually annotated by the ChEBI Team.
Submitter Kristian Axelsen
Secondary ChEBI IDs CHEBI:87078
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Formula C11H18N2O7
Net Charge 0
Average Mass 290.270
Monoisotopic Mass 290.11140
SMILES C([C@@H](C(*)=O)N*)O[C@@H]1[C@@H]([C@H]([C@H]([C@H](O1)CO)O)O)NC(=O)C
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.
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ChEBI Ontology
Outgoing N-acetyl-α-D-galactosaminyl-L-serine residue (CHEBI:53604) has role epitope (CHEBI:53000)
N-acetyl-α-D-galactosaminyl-L-serine residue (CHEBI:53604) is a L-α-amino acid residue (CHEBI:83228)
N-acetyl-α-D-galactosaminyl-L-serine residue (CHEBI:53604) is substituent group from O-(N-acetyl-α-D-galactosaminyl)-L-serine (CHEBI:53608)
IUPAC Name
O-(2-acetamido-2-deoxy-α-D-galactopyranosyl)-L-serine residue
Synonyms Sources
-[GalNAc(α1→O)]Ser- JCBN
GalNAc α 1-O-Ser ChEBI
N-acetyl-α-D-galactosaminyl-L-serine residue UniProt
Tn antigen
Note: (2016-04-13) L-Threonine may replace L-serine in the structure of Tn antigen.
ChEBI
Manual Xrefs Databases
AA0154 RESID
Tn_antigen Wikipedia
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Last Modified
11 October 2016