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HO-Ser/Thr-glycopeptide GalNAc(alpha1-O)-Ser/Thr-glycopeptide
This enzyme catalyzes the GalNAc-transfer from UDP-GalNAc to Ser or Thr residue in the protein. The product is GalNAc-alpha-O-Ser/Thr structure, so-called Tn-antigen, which is the base structure of mucin type O-glycan. The acceptor substrate (protein) is typically Mucin. GALNT17 is the 17th member of this enzyme family. This is highly homologous to T10, however, suggested specific functions in spermatocytos during meiosis. This isozyme was published as GALNT20 by Peng et al. in 2010.

GALNTL6 O-glycan Tn-antigen mucin tumor marker

UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase

Alias GALNTL6, ppGalNAcT20 by Peng,    details
DesignationUDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 17
OrganismHomo sapiens
GeneID 442117
HGNC 33844
mRNA NM_001034845.2      
Protein NP_001030017.2      
CAZy GT27   
OMIM 615138   
This page does not indicate all of the enzymatic reaction, and expression of "GALNT17".