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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. Displays activity toward mucin-derived peptide substrates such as Muc2, Muc5AC, Muc7, and Muc13 (-58). May be involved in O-glycosylation in kidney.
Gene References into Functions
Silencing of GALNT14 in osterix-overexpressed cells restored the decreased chemosensitivity. Conversely, overexpression of GALNT14 in osterix-knockdown cells abrogated the increased chemosensitivity in breast cancer cells. PMID: 29227978
The analysis showed that the "TT" genotype was associated with unfavorable overall survival (OS, P = 0.009). PMID: 27124048
miR-125a functions as tumor suppressor in ovarian cancer by targeting GALNT14. PMID: 27133078
GALNT14 genotypes were significantly associated with clinical outcomes of transcatheter arterial chemoembolization. PMID: 26871639
Expression of GalNAc-T14 or HOXB9 was strongly correlated with reduced recurrence-free survival in lung adenocarcinomas. PMID: 26544896
Recurrence of mutation suggests GALNT14 as a novel gene potentially involved in neuroblastoma predisposition. PMID: 26309160
GALN14 genotype (rs9679162) was an effective predictor for therapeutic outcome in advanced hepatocellular carcinoma (HCC) patients treated by FMP chemotherapy. PMID: 23959947
Studies demonstrate that IGFBP-3 and GalNAc-T14 are colocalized in MCF-7 cells, and confirmed the interaction between IGFBP-3 and GalNAc-T14; these results reveal a minimal region of GalNAc-T14 that was sufficiently bound to the full-length IGFBP-3. PMID: 22441125
Results provide evidence that GalNAc-T14 may be a potential biomarker for breast cancer by immunohistochemistry. PMID: 20356418
GALNT14 and FUT3/6 H-scores were significantly higher in non-small cell lung cancer cell lines sensitive to dulanermin and drozitumab versus resistant cell lines PMID: 20179215
cloning and characterization; results provide evidence that pp-GalNAc-T14 is a new member of the pp-GalNAc-T family and suggest that it may be involved in the O-glycosylation in kidney PMID: 12507512
The role of GalNAc-T14 as an intracellular mediator of the effects of IGFBP-3 need to be verified in future studies. PMID: 17434446
GALNT14 may be involved in regulating the apoptotic action of IGFBP-3. PMID: 19805900
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Subcellular Location
Golgi apparatus membrane; Single-pass type II membrane protein.
Protein Families
Glycosyltransferase 2 family, GalNAc-T subfamily
Tissue Specificity
Detected in renal tubules (at protein level). Highly expressed in fetal and adult kidney. Widely expressed at low level. Weakly expressed in whole brain, cerebellum, thymus, lung, mammary gland, liver, stomach, small intestine, colon, pancreas, spleen, bl