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    B4GALNT3 beta-1,4-N-acetyl-galactosaminyltransferase 3 [ Homo sapiens (human) ]

    Gene ID: 283358, updated on 3-Mar-2026
    Official Symbol
    B4GALNT3provided by HGNC
    Official Full Name
    beta-1,4-N-acetyl-galactosaminyltransferase 3provided by HGNC
    Primary source
    HGNC:HGNC:24137
    See related
    Ensembl:ENSG00000139044 MIM:612220; AllianceGenome:HGNC:24137
    Gene type
    protein coding
    RefSeq status
    VALIDATED
    Organism
    Homo sapiens
    Lineage
    Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
    Summary
    B4GALNT3 transfers N-acetylgalactosamine (GalNAc) onto glucosyl residues to form N,N-prime-diacetyllactosediamine (LacdiNAc, or LDN), a unique terminal structure of cell surface N-glycans (Ikehara et al., 2006 [PubMed 16728562]).[supplied by OMIM, Aug 2008]
    Expression
    Biased expression in stomach (RPKM 33.1), colon (RPKM 16.3) and 11 other tissues See more
    Orthologs
    Try the new Gene page
    Try the new Transcripts and proteins table
    See B4GALNT3 in Genome Data Viewer
    Location:
    12p13.33
    Exon count:
    20
    Annotation release Status Assembly Chr Location
    RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 12 NC_000012.12 (459939..563509)
    RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 12 NC_060936.1 (455476..559474)
    RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 12 NC_000012.11 (569105..672675)

    Chromosome 12 - NC_000012.12Genomic Context describing neighboring genes Neighboring gene BRD4-independent group 4 enhancer GRCh37_chr12:415875-417074 Neighboring gene lysine demethylase 5A Neighboring gene Sharpr-MPRA regulatory region 4015 Neighboring gene uncharacterized LOC105369594 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 5778 Neighboring gene H3K27ac hESC enhancer GRCh37_chr12:511068-511620 Neighboring gene Sharpr-MPRA regulatory region 4380 Neighboring gene coiled-coil domain containing 77 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:568273-569256 Neighboring gene uncharacterized LOC124902853 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:610726-611441 Neighboring gene uncharacterized LOC124902852 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:618531-619104 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:619948-620594 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:643601-644100 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:647445-648174 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:648175-648904 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:651093-651821 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:651822-652550 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:655449-655983 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:671915-672416 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:674581-675082 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:675083-675582 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:681299-681927 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:685261-685762 Neighboring gene Sharpr-MPRA regulatory region 2537 Neighboring gene uncharacterized LOC105369595 Neighboring gene ninjurin 2 Neighboring gene RNA, U7 small nuclear 103 pseudogene

    • Project title: Tissue-specific circular RNA induction during human fetal development
    • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
    • BioProject: PRJNA270632
    • Publication: PMID 26076956
    • Analysis date: Mon Apr 2 22:54:59 2018

    GeneRIFs: Gene References Into Functions

    What's a GeneRIF?
    Products Interactant Other Gene Complex Source Pubs Description

    Markers

    Potential readthrough

    Included gene: CCDC77

    Clone Names

    • FLJ16224, FLJ40362

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    enables N-acetyl-beta-glucosaminyl-derivative 4-beta-N-acetylgalactosaminyltransferase activity IEA
    Inferred from Electronic Annotation
    more info
     
    enables acetylgalactosaminyltransferase activity IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    enables acetylgalactosaminyltransferase activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    enables acetylgalactosaminyltransferase activity IEA
    Inferred from Electronic Annotation
    more info
     
    enables glycosyltransferase activity IEA
    Inferred from Electronic Annotation
    more info
     
    enables transferase activity IEA
    Inferred from Electronic Annotation
    more info
     
    Component Evidence Code Pubs
    located_in Golgi apparatus IDA
    Inferred from Direct Assay
    more info
     
    located_in Golgi cisterna membrane IEA
    Inferred from Electronic Annotation
    more info
     
    Preferred Names
    beta-1,4-N-acetylgalactosaminyltransferase 3
    Names
    B4GalNAcT3
    Beta4GalNAc-T3
    N-acetyl-beta-glucosaminyl-glycoprotein 4-beta-N- acetylgalactosaminyltransferase
    N-acetyl-beta-glucosaminyl-glycoprotein 4-beta-N-acetylgalactosaminyltransferase 2
    NGalNAc-T2
    beta-1,4-N-acetyl-galactosaminyl transferase 3
    beta-1,4-N-acetylgalactosaminyltransferase III
    beta4GalNAcT3
    NP_775864.3

    NEW Try the new Transcript table

    RefSeqs maintained independently of Annotated Genomes

    These reference sequences exist independently of genome builds. Explain

    These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

    mRNA and Protein(s)

    1. NM_173593.4NP_775864.3  beta-1,4-N-acetylgalactosaminyltransferase 3

      See identical proteins and their annotated locations for NP_775864.3

      Status: VALIDATED

      Source sequence(s)
      AB089940, AC005844, AC006205, AK093503, AK131277, CN400443
      Consensus CDS
      CCDS8504.1
      UniProtKB/Swiss-Prot
      Q6L9W6, Q6ZNC1, Q8N7T6
      Related
      ENSP00000266383.5, ENST00000266383.10
      Conserved Domains (2) summary
      pfam07691
      Location:143277
      PA14; PA14 domain
      cl11394
      Location:788984
      Glyco_tranf_GTA_type; Glycosyltransferase family A (GT-A) includes diverse families of glycosyl transferases with a common GT-A type structural fold

    RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

    The following sections contain reference sequences that belong to a specific genome build. Explain

    Reference GRCh38.p14 Primary Assembly

    Genomic

    1. NC_000012.12 Reference GRCh38.p14 Primary Assembly

      Range
      459939..563509
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate T2T-CHM13v2.0

    Genomic

    1. NC_060936.1 Alternate T2T-CHM13v2.0

      Range
      455476..559474
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)