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Aliases for A4GNT Gene

Aliases for A4GNT Gene

  • Alpha-1,4-N-Acetylglucosaminyltransferase 2 3
  • Alpha4GnT 3 4
  • EC 2.4.1.- 4

External Ids for A4GNT Gene

Summaries for A4GNT Gene

Entrez Gene Summary for A4GNT Gene

  • This gene encodes a protein from the glycosyltransferase 32 family. The enzyme catalyzes the transfer of N-acetylglucosamine (GlcNAc) to core 2 branched O-glycans. It forms a unique glycan, GlcNAcalpha1-->4Galbeta-->R and is largely associated with the Golgi apparatus membrane. [provided by RefSeq, Jul 2008]

GeneCards Summary for A4GNT Gene

A4GNT (Alpha-1,4-N-Acetylglucosaminyltransferase) is a Protein Coding gene. Among its related pathways are heparan sulfate biosynthesis and heparan sulfate biosynthesis. GO annotations related to this gene include galactosyltransferase activity and acetylglucosaminyltransferase activity. An important paralog of this gene is A4GALT.

UniProtKB/Swiss-Prot for A4GNT Gene

  • Necessary for the synthesis of type III mucin. Catalyzes the transfer of N-acetylglucosamine (GlcNAc) to core 2 branched O-glycans

No data available for Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for A4GNT Gene

Genomics for A4GNT Gene

Genomic Location for A4GNT Gene

138,123,718 bp from pter
138,132,387 bp from pter
8,670 bases
Minus strand

Genomic View for A4GNT Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for A4GNT Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for A4GNT Gene

Regulatory Elements for A4GNT Gene

Proteins for A4GNT Gene

  • Protein details for A4GNT Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Protein Accession:
    Secondary Accessions:
    • Q0VDK1
    • Q0VDK2

    Protein attributes for A4GNT Gene

    340 amino acids
    Molecular mass:
    39497 Da
    Quaternary structure:
    No Data Available

neXtProt entry for A4GNT Gene

Proteomics data for A4GNT Gene at MOPED

Post-translational modifications for A4GNT Gene

  • Glycosylation at Asn99, Asn138, Asn251, and Asn282

Other Protein References for A4GNT Gene

ENSEMBL proteins:
REFSEQ proteins:

No data available for DME Specific Peptides for A4GNT Gene

Domains for A4GNT Gene

Suggested Antigen Peptide Sequences for A4GNT Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • The conserved DXD motif is involved in enzyme activity.:
    • Q9UNA3
  • Belongs to the glycosyltransferase 32 family.:
    • Q9UNA3
genes like me logo Genes that share domains with A4GNT: view

No data available for Gene Families for A4GNT Gene

Function for A4GNT Gene

Molecular function for A4GNT Gene

UniProtKB/Swiss-Prot Function: Necessary for the synthesis of type III mucin. Catalyzes the transfer of N-acetylglucosamine (GlcNAc) to core 2 branched O-glycans

Enzyme Numbers (IUBMB) for A4GNT Gene

Gene Ontology (GO) - Molecular Function for A4GNT Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0008375 acetylglucosaminyltransferase activity IDA 10430883
genes like me logo Genes that share ontologies with A4GNT: view
genes like me logo Genes that share phenotypes with A4GNT: view

Animal Models for A4GNT Gene

MGI Knock Outs for A4GNT:

No data available for miRNA , Transcription Factor Targeting and HOMER Transcription for A4GNT Gene

Localization for A4GNT Gene

Subcellular locations from UniProtKB/Swiss-Prot for A4GNT Gene

Golgi apparatus membrane; Single-pass type II membrane protein.

Subcellular locations from

Jensen Localization Image for A4GNT Gene COMPARTMENTS Subcellular localization image for A4GNT gene
Compartment Confidence
golgi apparatus 5
extracellular 3
endoplasmic reticulum 1
lysosome 1
nucleus 1
plasma membrane 1

Gene Ontology (GO) - Cellular Components for A4GNT Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000139 Golgi membrane IEA --
GO:0005794 Golgi apparatus --
GO:0016020 membrane TAS 10430883
GO:0016021 integral component of membrane IEA --
genes like me logo Genes that share ontologies with A4GNT: view

Pathways for A4GNT Gene

genes like me logo Genes that share pathways with A4GNT: view

Pathways by source for A4GNT Gene

UniProtKB/Swiss-Prot Q9UNA3-A4GCT_HUMAN

  • Pathway: Protein modification; protein glycosylation

Interacting Proteins for A4GNT Gene

Gene Ontology (GO) - Biological Process for A4GNT Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005975 carbohydrate metabolic process TAS 10430883
GO:0006493 protein O-linked glycosylation IEA --
GO:0009101 glycoprotein biosynthetic process IDA 10430883
GO:0050680 negative regulation of epithelial cell proliferation IEA --
genes like me logo Genes that share ontologies with A4GNT: view

Transcripts for A4GNT Gene

mRNA/cDNA for A4GNT Gene

(1) REFSEQ mRNAs :
(4) Additional mRNA sequences :
(7) Selected AceView cDNA sequences:
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for A4GNT Gene

Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for A4GNT Gene

No ASD Table

Relevant External Links for A4GNT Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for A4GNT Gene

mRNA expression in normal human tissues for A4GNT Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for A4GNT Gene

This gene is overexpressed in Stomach (19.3) and Pancreas (12.2).

SOURCE GeneReport for Unigene cluster for A4GNT Gene Hs.278960

mRNA Expression by UniProt/SwissProt for A4GNT Gene

Tissue specificity: Detected in stomach and pancreas
genes like me logo Genes that share expressions with A4GNT: view

No data available for Protein expression for A4GNT Gene

Orthologs for A4GNT Gene

This gene was present in the common ancestor of animals.

Orthologs for A4GNT Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia A4GNT 35
  • 98.43 (n)
  • 98.53 (a)
A4GNT 36
  • 99 (a)
(Bos Taurus)
Mammalia A4GNT 35
  • 83.82 (n)
  • 81.18 (a)
A4GNT 36
  • 81 (a)
(Canis familiaris)
Mammalia A4GNT 35
  • 83.97 (n)
  • 80.24 (a)
A4GNT 36
  • 80 (a)
(Mus musculus)
Mammalia A4gnt 35
  • 77.25 (n)
  • 71.18 (a)
A4gnt 16
A4gnt 36
  • 71 (a)
(Monodelphis domestica)
Mammalia A4GNT 36
  • 69 (a)
(Ornithorhynchus anatinus)
Mammalia A4GNT 36
  • 71 (a)
(Rattus norvegicus)
Mammalia A4gnt 35
  • 78.63 (n)
  • 73.82 (a)
(Gallus gallus)
Aves A4GNT 35
  • 66.56 (n)
  • 62.74 (a)
A4GNT 36
  • 51 (a)
(Anolis carolinensis)
Reptilia A4GNT 36
  • 59 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia LOC101733902 35
  • 61.88 (n)
  • 57.45 (a)
fruit fly
(Drosophila melanogaster)
Insecta alpha4GT1 36
  • 21 (a)
alpha4GT2 36
  • 18 (a)
Species with no ortholog for A4GNT:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)
  • zebrafish (Danio rerio)

Evolution for A4GNT Gene

Gene Tree for A4GNT (if available)
Gene Tree for A4GNT (if available)

Paralogs for A4GNT Gene

Paralogs for A4GNT Gene

Selected SIMAP similar genes for A4GNT Gene using alignment to 1 proteins: Pseudogenes for A4GNT Gene

genes like me logo Genes that share paralogs with A4GNT: view

Variants for A4GNT Gene

Sequence variations from dbSNP and Humsavar for A4GNT Gene

SNP ID Clin Chr 03 pos Sequence Context AA Info Type MAF
rs1564496 -- 138,124,176(-) CTTGG(C/G/T)GGGGT utr-variant-3-prime
rs2170309 -- 138,124,264(-) AAATA(A/G)AGCTA reference, synonymous-codon
rs2246945 - 138,124,634(-) TTCAG(A/C)CATTT missense, reference
rs2622694 -- 138,130,027(+) TCACT(C/T)CTAAT intron-variant
rs2622695 -- 138,125,803(-) ACAGA(C/T)CTGAG intron-variant

Structural Variations from Database of Genomic Variants (DGV) for A4GNT Gene

Variant ID Type Subtype PubMed ID
nsv428422 CNV Gain+Loss 18775914
dgv1511e1 CNV Complex 17122850
esv2751978 CNV Loss 17911159
dgv1512e1 CNV Complex 17122850

Relevant External Links for A4GNT Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for A4GNT Gene

Disorders for A4GNT Gene

(1) University of Copenhagen DISEASES for A4GNT Gene

Relevant External Links for A4GNT

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with A4GNT: view

No data available for UniProtKB/Swiss-Prot for A4GNT Gene

Publications for A4GNT Gene

  1. Expression cloning of a human alpha1, 4-N- acetylglucosaminyltransferase that forms GlcNAcalpha1-->4Galbeta-->R, a glycan specifically expressed in the gastric gland mucous cell-type mucin. (PMID: 10430883) Nakayama J. … Fukuda M. (Proc. Natl. Acad. Sci. U.S.A. 1999) 2 3 4 23
  2. Immunohistochemical demonstration of alpha1,4-N-acetylglucosaminyltransferase that forms GlcNAcalpha1,4Galbeta residues in human gastrointestinal mucosa. (PMID: 11304796) Zhang M.X. … Fukuda M. (J. Histochem. Cytochem. 2001) 3 23
  3. The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). (PMID: 15489334) Gerhard D.S. … Malek J. (Genome Res. 2004) 3 4
  4. Genetic variation in a4GnT in relation to Helicobacter pylori serology and gastric cancer risk. (PMID: 19751437) Zheng Z. … Ye W. (Helicobacter 2009) 3 48
  5. Personalized smoking cessation: interactions between nicotine dose, dependence and quit-success genotype score. (PMID: 20379614) Rose J.E. … Uhl G.R. (Mol. Med. 2010) 3 48

Products for A4GNT Gene

Sources for A4GNT Gene

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