Reaction participants Show >> << Hide
-
Namehelp_outline
a 3-O-{α-Neu5Ac-(2→3)-β-D-Gal-(1→3)-[α-Neu5Ac-(2→6)]-α-D-GalNAc}-L-seryl-[protein]
Identifier
RHEA-COMP:16761
Reactive part
help_outline
- Name help_outline a 3-O-{N-acetyl-α-neuraminosyl-(2→3)-β-D-galactosyl-(1→3)-[N-acetyl-α-neuraminosyl-(2→6)]-N-acetyl-α-D-galactosaminyl}-L-serine residue Identifier CHEBI:156397 Charge -2 Formula C39H60N4O28 SMILEShelp_outline C([C@@H](C(*)=O)N*)O[C@@H]1[C@@H]([C@H]([C@@H](O)[C@H](O1)CO[C@]2(O[C@]([C@@H]([C@H](C2)O)NC(C)=O)([C@@H]([C@H](O)CO)O)[H])C([O-])=O)O[C@H]3[C@@H]([C@@H](O[C@]4(O[C@]([C@@H]([C@H](C4)O)NC(C)=O)([C@@H]([C@H](O)CO)O)[H])C([O-])=O)[C@H]([C@H](O3)CO)O)O)NC(C)=O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline UDP-N-acetyl-α-D-galactosamine Identifier CHEBI:67138 Charge -2 Formula C17H25N3O17P2 InChIKeyhelp_outline LFTYTUAZOPRMMI-NESSUJCYSA-L SMILEShelp_outline CC(=O)N[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1OP([O-])(=O)OP([O-])(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n1ccc(=O)[nH]c1=O 2D coordinates Mol file for the small molecule Search links Involved in 52 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
-
Namehelp_outline
a 3-O-{[α-Neu5Ac-(2→3)]-β-D-GalNAc-(1→4)-β-D-Gal-(1→3)-[α-Neu5Ac-(2→6)]-α-D-GalNAc}-L-seryl-[protein]
Identifier
RHEA-COMP:19757
Reactive part
help_outline
- Name help_outline a 3-O-{[α-Neu5Ac-(2→3)]-β-D-GalNAc-(1→4)-β-D-Gal-(1→3)-[α-Neu5Ac-(2→6)]-α-D-GalNAc}-L-serine residue Identifier CHEBI:232003 Charge -2 Formula C47H73N5O33 SMILEShelp_outline [C@@H]1([C@H](O[C@@H]([C@@H]([C@@H]1O[C@H]2[C@@H]([C@H]([C@H]([C@H](O2)CO)O[C@H]3[C@@H]([C@@H](O)[C@H]([C@@H](CO)O3)O)NC(C)=O)O[C@@]4(C[C@@H]([C@H]([C@](O4)([H])[C@@H]([C@@H](CO)O)O)NC(=O)C)O)C([O-])=O)O)O)CO[C@@]5(C[C@@H]([C@H]([C@](O5)([H])[C@@H]([C@@H](CO)O)O)NC(=O)C)O)C([O-])=O)OC[C@@H](C(*)=O)N*)NC(=O)C 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline UDP Identifier CHEBI:58223 Charge -3 Formula C9H11N2O12P2 InChIKeyhelp_outline XCCTYIAWTASOJW-XVFCMESISA-K SMILEShelp_outline O[C@@H]1[C@@H](COP([O-])(=O)OP([O-])([O-])=O)O[C@H]([C@@H]1O)n1ccc(=O)[nH]c1=O 2D coordinates Mol file for the small molecule Search links Involved in 637 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,932 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:81955 | RHEA:81956 | RHEA:81957 | RHEA:81958 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
|
Related reactions help_outline
More general form(s) of this reaction
Publications
-
Glycoproteomic and Phenotypic Elucidation of B4GALNT2 Expression Variants in the SID Histo-Blood Group System.
Stenfelt L., Nilsson J., Hellberg A., Liew Y.W., Morrison J., Larson G., Olsson M.L.
The Sda histo-blood group antigen (GalNAcβ1-4(NeuAcα2-3)Galβ-R) is implicated in various infections and constitutes a potential biomarker for colon cancer. Sd(a−) individuals (2−4% of Europeans) may produce anti-Sda, which can lead to incompatible blood transfusions, especially if donors with the ... >> More
The Sda histo-blood group antigen (GalNAcβ1-4(NeuAcα2-3)Galβ-R) is implicated in various infections and constitutes a potential biomarker for colon cancer. Sd(a−) individuals (2−4% of Europeans) may produce anti-Sda, which can lead to incompatible blood transfusions, especially if donors with the high-expressing Sd(a++)/Cad phenotype are involved. We previously reported the association of B4GALNT2 mutations with Sd(a−), which established the SID blood-group system. The present study provides causal proof underpinning this correlation. Sd(a−) HEK293 cells were transfected with different B4GALNT2 constructs and evaluated by immunostaining and glycoproteomics. The predominant SIDnull candidate allele with rs7224888:T>C (p.Cys406Arg) abolished Sda synthesis, while this antigen was detectable as N- or O-glycans on glycoproteins following transfection of wildtype B4GALNT2. Surprisingly, two rare missense variants, rs148441237:A>G and rs61743617:C>T, found in a Sd(a−) compound heterozygote, gave results similar to wildtype. To elucidate on whether Sd(a++)/Cad also depends on B4GALNT2 alterations, this gene was sequenced in five individuals. No Cad-specific changes were identified, but a detailed erythroid Cad glycoprotein profile was obtained, especially for glycophorin-A (GLPA) O-glycosylation, equilibrative nucleoside transporter 1 (S29A1) O-glycosylation, and band 3 anion transport protein (B3AT) N-glycosylation. In conclusion, the p.Cys406Arg β4GalNAc-T2 variant causes Sda-deficiency in humans, while the enigmatic Cad phenotype remains unresolved, albeit further characterized. << Less
Int. J. Mol. Sci. 23:0-0(2022) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.