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- Table of Contents
Facts about Polypeptide N-acetylgalactosaminyltransferase 12.
Displays enzymatic activity toward the Gal-NAc- Muc5AC glycopeptide, but no detectable activity to mono-GalNAc- glycosylated Muc1a, Muc2, Muc7 and EA2. May play an essential role in the initial step of mucin-type oligosaccharide biosynthesis in digestive organs.
| Human | |
|---|---|
| Gene Name: | GALNT12 |
| Uniprot: | Q8IXK2 |
| Entrez: | 79695 |

| Belongs to: |
|---|
| glycosyltransferase 2 family |

colorectal cancer, susceptibility to 1; CRCS1; EC 2.4.1.41; FLJ21212; GalNAc-T12; GALNT12; Polypeptide GalNAc transferase 12; polypeptide N-acetylgalactosaminyltransferase 12; Pp-GaNTase 12; Protein-UDP acetylgalactosaminyltransferase 12; UDP-GalNAc: polypeptide N-acetylgalactosaminyltransferase; UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase 12; UDP-N-acetyl-alpha-D-galactosamine:polypeptideN-acetylgalactosaminyltransferase 12 (GalNAc-T12)
Mass (kDA):
66.938 kDA

| Human | |
|---|---|
| Location: | 9q22.33 |
| Sequence: | 9; NC_000009.12 (98807670..98850081) |
Widely expressed at different levels of expression. Highly expressed in digestive organs such as small intestine, stomach, pancreas and colon. Expressed at intermediate level in testis, thyroid gland and spleen. Weakly expressed in whole brain, cerebral cortex, cerebellum, fetal brain, bone marrow, thymus, leukocytes, heart, skeletal muscle, liver, lung, esophagus, kidney, adrenal gland, mammary gland, uterus, placenta, ovary and prostate.
Golgi apparatus membrane; Single-pass type II membrane protein.





PMID: 12135769 by Guo J.-M., et al. Molecular cloning and characterization of a novel member of the UDP- GalNAc:polypeptide N-acetylgalactosaminyltransferase family, pp- GalNAc-T12(1).
PMID: 19617566 by Guda K., et al. Inactivating germ-line and somatic mutations in polypeptide N- acetylgalactosaminyltransferase 12 in human colon cancers.