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GeneE
10 sources retrieved · Most recent: April 2026 · Index updated 15 days ago
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B4GALT3
beta-1,4-galactosyltransferase 3
Chromosome 1 · 1q23.3
NCBI Gene: 8703Ensembl: ENSG00000158850.16HGNC: HGNC:926UniProt: A0A384NY44
44PubMed Papers
20Diseases
0Drugs
0Pathogenic Variants
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase activitygalactosyltransferase activityglucosylceramide metabolic processGolgi apparatusneurodegenerative diseaseneoplasmOkt4 epitope deficiencyAlymphoid cystic thymic dysgenesis
✦AI Summary

B4GALT3 (beta-1,4-galactosyltransferase 3) is a glycosyltransferase enzyme that modifies N-linked oligosaccharides on glycoproteins, particularly through β1-integrin glycosylation 12. The enzyme catalyzes the addition of galactose residues to generate poly-N-acetyllactosamine structures and functions primarily in the Golgi apparatus. B4GALT3 demonstrates context-dependent roles in cancer progression. In some cancers like colorectal cancer, B4GALT3 acts as a tumor suppressor, negatively correlating with metastasis, lymph node involvement, and advanced stages by suppressing β1-integrin-mediated cell invasion and migration 2. Similarly, it suppresses extravillous trophoblast invasion during pregnancy by modifying β1-integrin glycosylation and enhancing integrin degradation 1. However, in other malignancies including multiple myeloma, glioblastoma, hepatocellular carcinoma, cervical cancer, head and neck squamous cell carcinoma, and retinoblastoma, B4GALT3 promotes tumor progression, cell proliferation, invasion, and metastasis 345678. The mechanism involves activation of β1-integrin-FAK signaling pathways, modulation of Wnt/β-catenin signaling, and regulation of endoplasmic reticulum stress responses 38. B4GALT3 represents a potential therapeutic target and prognostic biomarker across multiple cancer types.

Sources cited
1
B4GALT3 promotes multiple myeloma progression via Wnt/β-catenin/GRP78 pathway and ER stress modulation
PMID: 40652559
2
B4GALT3 suppresses trophoblast invasion by modifying β1-integrin glycosylation and enhancing integrin degradation
PMID: 25659296
3
B4GALT3 negatively correlates with colorectal cancer metastasis and suppresses invasion through β1-integrin inhibition
PMID: 24403309
4
B4GALT3 promotes glioblastoma cell proliferation and invasion via β-catenin and vimentin
PMID: 32202233
5
B4GALT3 in BMSCs-EVs promotes hepatocellular carcinoma via NF-κB pathway activation
PMID: 40186771
6
B4GALT3 upregulation by miR-27a promotes cervical cancer cell migration and invasion through β1-integrin pathway
PMID: 26987623
7
B4GALT3 depletion inhibits HNSCC cell proliferation, migration, and invasion
PMID: 38244579
8
B4GALT3 drives retinoblastoma invasion through β1-integrin-FAK axis activation and MMP2 expression
PMID: 41866544
Disease Associationsⓘ20
neurodegenerative diseaseOpen Targets
0.40Moderate
neoplasmOpen Targets
0.08Suggestive
Okt4 epitope deficiencyOpen Targets
0.05Suggestive
Alymphoid cystic thymic dysgenesisOpen Targets
0.04Suggestive
combined immunodeficiency with skin granulomasOpen Targets
0.04Suggestive
liver diseaseOpen Targets
0.04Suggestive
22q11.2 deletion syndromeOpen Targets
0.04Suggestive
X-Linked Combined Immunodeficiency DiseasesOpen Targets
0.03Suggestive
immunodeficiency 15aOpen Targets
0.03Suggestive
immunodeficiency 19Open Targets
0.03Suggestive
T-cell immunodeficiency, congenital alopecia, and nail dystrophyOpen Targets
0.03Suggestive
T-cell lymphopenia, infantile, with or without nail dystrophy, autosomal dominantOpen Targets
0.03Suggestive
immunodeficiency 76Open Targets
0.03Suggestive
immunodeficiency 105Open Targets
0.03Suggestive
cancerOpen Targets
0.03Suggestive
Nijmegen breakage syndromeOpen Targets
0.03Suggestive
open-angle glaucomaOpen Targets
0.03Suggestive
cervical cancerOpen Targets
0.03Suggestive
breast cancerOpen Targets
0.02Suggestive
ovarian cancerOpen Targets
0.02Suggestive
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Related Genes
IDNKShared pathway100%GLT6D1Shared pathway100%LANCL3Shared pathway100%HEXDShared pathway100%KLBShared pathway100%YDJCShared pathway100%
Tissue Expression6 tissues
Lung
100%
Ovary
97%
Bone Marrow
81%
Liver
72%
Heart
51%
Brain
42%
Gene Interaction Network
Click a node to explore
B4GALT3IDNKGLT6D1LANCL3HEXDKLBYDJC
PROTEIN STRUCTURE
Preparing viewer…
AlphaFoldAI-predicted · UniProt O60512
View on AlphaFold ↗
Constraintⓘ
LOEUFⓘ
0.93LoF Tolerant
pLIⓘ
0.00Tolerant
Observed/Expected LoF0.68 [0.50–0.93]
RankingsWhere B4GALT3 stands among ~20K protein-coding genes
  • #9,561of 20,598
    Most Researched44
  • #8,522of 17,882
    Most Constrained (LOEUF)0.93
Genes detectedB4GALT3
Sources retrieved10 papers
Response time—
📄 Sources
10▼
1
B4GALT3 as a Key Glycosyltransferase Gene in Multiple Myeloma Progression: Insights From Bioinformatics, Machine Learning, and Experimental Validation.
PMID: 40652559
Mol Carcinog · 2025
1.00
2
β-1,4-Galactosyltransferase III suppresses extravillous trophoblast invasion through modifying β1-integrin glycosylation.
PMID: 25659296
Placenta · 2015
0.90
3
β-1,4-Galactosyltransferase III suppresses β1 integrin-mediated invasive phenotypes and negatively correlates with metastasis in colorectal cancer.
PMID: 24403309
Carcinogenesis · 2014
0.80
4
B4GALT3 promotes cell proliferation and invasion in glioblastoma.
PMID: 32202233
Neurol Res · 2020
0.70
5
Targeting B4GALT3 in BMSCs-EVs for Therapeutic Control of HCC via NF-κB pathway inhibition.
PMID: 40186771
Cell Biol Toxicol · 2025
0.60