This gene encodes a member of the GalNAc polypeptide N-acetylgalactosaminyltransferases. These enzymes catalyze the first step in the synthesis of mucin-type oligosaccharides. These proteins transfer GalNAc from UDP-GalNAc to either serine or threonine residues of polypeptide acceptors. The protein encoded by this locus may have increased catalytic activity toward glycosylated peptides compared to activity toward non-glycosylated peptides.[provided by RefSeq, Apr 2010] (from
Gerken et al., Cleveland, United States. In J Biol Chem, 2009
GalNAc T10 has a large and pronounced glycopeptide preference for Ser/Thr-O-GalNAc only at the +1 position from the acceptor site, whereas T1 and T2 have significantly reduced and variable preferences for Ser/Thr-O-GalNAc.