O-(N-acetyl-alpha-D-galactosaminyl)-L-serine residue (CHEBI:53604)

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ChEBI Name	O-(N-acetyl-α-D-galactosaminyl)-L-serine residue

ChEBI ID	CHEBI:53604

ChEBI ASCII Name	O-(N-acetyl-alpha-D-galactosaminyl)-L-serine residue

Definition	An L-α-amino acid residue derived from O-(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

Download	Molfile XML SDF

Formula

C11H18N2O7

Net Charge

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.

ChEBI Ontology
Outgoing	O-(N-acetyl-α-D-galactosaminyl)-L-serine residue (CHEBI:53604) has functional parent L-serine residue (CHEBI:29999) O-(N-acetyl-α-D-galactosaminyl)-L-serine residue (CHEBI:53604) has role epitope (CHEBI:53000) O-(N-acetyl-α-D-galactosaminyl)-L-serine residue (CHEBI:53604) is a L-α-amino acid residue (CHEBI:83228) O-(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

Last Modified

10 September 2021