Reaction: Addition of GlcNAc to the Tn antigen forms a Core 3 glycoprotein
- in pathway: O-linked glycosylation of mucins
The UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase family (B3GNTs) consists of 9 members in humans (Kolbinger et al, 1998; Shiraishi et al, 2001; Togayachi et al, 2001; Iwai et al, 2002; Huang et al, 2004; Ishida et al, 2005; Zheng et al, 2004). They catalyse the addition of N-acetylglucosamine to the T antigen to form the Core 3 glycoprotein (Togayachi et al, 2006). Thie reaction occurs in the Golgi.
Reaction - small molecule participants:
UDP [Golgi lumen]
UDP-GlcNAc [Golgi lumen]
Reactome.org reaction link: R-HSA-914010
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Reaction input - small molecules:
UDP-N-acetyl-alpha-D-glucosamine(2-)
Reaction output - small molecules:
UDP(3-)
Reactome.org link: R-HSA-914010