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Proteins/UNIPROT:Q6L9W6
Transfers N-acetylgalactosamine (GalNAc) from UDP-GalNAc to N-acetylglucosamine-beta-benzyl with a beta-1,4-linkage to form N,N'-diacetyllactosediamine, GalNAc-beta-1,4-GlcNAc structures in N-linked glycans and probably O-linked glycans. Mediates the N,N'-diacetyllactosediamine formation on gastric mucosa..
Function from UniProtKB (Q6L9W6), read 2026-09-23. CC BY 4.0.
Curated compounds routed: 0
9 statements
9 statements · 3 reference databases · Subject: B4GALNT3 · Sources: Hetionet, Human-GEM, Rhea
2 reactions
D-glucosyl-N-acylsphingosine+CHEBI:67119proton+a beta-D-Gal-(1->4)-beta-D-Glc-(1<->1)-Cer(d18:1(4E))+UDP
Catalysed by GLT8D1 or B4GALT7 or PIGV or B4GALT1 or GALNT7 or B4GALT2 or A4GNT or B4GALT6 or PIGZ or GLT8D2 or B4GALT4 or GCNT7 and 23 more alternatives
6 names
Resolves to: B4GALNT3
Reaction pageLeft to rightBalance undeterminableEC 2.4.1.-endoplasmic reticulum
Human-GEM MAR00765CC BY 4.0Reference data
an N-acetyl-beta-D-glucosaminyl derivative+UDP-N-acetyl-alpha-D-galactosamineCHEBI:138027+UDP+hydron
Catalysed by B4GALNT3 or B4GALNT4
Reaction pageDirection not assertedBalance undeterminable
Rhea RHEA:20493CC BY 4.0Reference data