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Proteins/UNIPROT:Q8N3T1
Catalyzes the initial reaction in O-linked oligosaccharide biosynthesis, the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein receptor. Although it displays a much weaker activity toward all substrates tested compared to GALNT2, it is able to transfer up to seven GalNAc residues to the Muc5AC peptide, suggesting that it can fill vicinal Thr/Ser residues in cooperation with other GALNT proteins. Prefers Muc1a as substrate..
Function from UniProtKB (Q8N3T1), read 2026-09-23. CC BY 4.0.
Curated compounds routed: 0
17 statements
17 statements · 4 reference databases · Subject: GALNT15 · Sources: Hetionet, Reactome, Rhea, UniProt
4 reactions
7 names
Resolves to: GALNT15
Human-GEM MAR01353CC BY 4.0Reference data
MAM00205g+MAM03110gproton+MAM03000g+UDP
Catalysed by GALNT16 or GALNT7 or GALNT18 or GALNT3 or GALNT12 or GALNT8 or GALNT15 or GALNT5 or GALNT6 or GALNT1 or GALNT2 or GALNT13 and 6 more alternatives
Reaction pageLeft to rightBalance undeterminableEC 2.4.1.41Golgi apparatus
Human-GEM MAR07436CC BY 4.0Reference data
L-seryl-[protein]+UDP-N-acetyl-alpha-D-galactosaminea 3-O-[N-acetyl-alpha-D-galactosaminyl]-L-seryl-[protein]+UDP+hydron
Catalysed by GALNT2 or GALNT1 or GALNT3 or GALNT17 or GALNT18 or GALNT5 or GALNT7 or GALNT10 or GALNT13 or GALNT12 or GALNT15 or GALNT16 and 6 more alternatives
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:23956CC BY 4.0Reference data
L-threonyl-[protein]+UDP-N-acetyl-alpha-D-galactosaminea 3-O-[N-acetyl-alpha-D-galactosaminyl]-L-threonyl-[protein]+UDP+hydron
Catalysed by GALNT2 or GALNT1 or GALNT3 or GALNT17 or GALNT18 or GALNT5 or GALNT7 or GALNT10 or GALNT13 or GALNT12 or GALNT15 or GALNT16 and 6 more alternatives
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:52424CC BY 4.0Reference data