Seroatlas · Human Serome Atlas

B3GNT6

Acetylgalactosaminyl-O-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase

Also known as: B3Gn-T6, B3GN6_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q6ZMB0
Gene
B3GNT6
Ensembl
ENSG00000198488
Chromosome
11
Canonical length
384 aa
Protein class
Enzymes, Metabolic proteins, Predicted intracellular proteins
Secretome location
Intracellular and membrane

OverviewNCBI Gene

The protein encoded by this gene is a beta-1,3-N-acetylglucosaminyltransferase that adds an N-acetylglucosamine moiety to N-acetylgalactosamine-modified serine or threonine. The encoded enzyme is responsible for creating the core 3 structure of O-glycans, which are important components of mucin-type glycoproteins. [provided by RefSeq, Dec 2016]

Canonical amino-acid sequenceUniProt

384 residues, UniProt reviewed canonical sequence.

>Q6ZMB0|B3GNT6
     1  MAFPCRRSLT AKTLACLLVG VSFLALQQWF LQAPRSPREE RSPQEETPEG PTDAPAADEP
    61  PSELVPGPPC VANASANATA DFEQLPARIQ DFLRYRHCRH FPLLWDAPAK CAGGRGVFLL
   121  LAVKSAPEHY ERRELIRRTW GQERSYGGRP VRRLFLLGTP GPEDEARAER LAELVALEAR
   181  EHGDVLQWAF ADTFLNLTLK HLHLLDWLAA RCPHARFLLS GDDDVFVHTA NVVRFLQAQP
   241  PGRHLFSGQL MEGSVPIRDS WSKYFVPPQL FPGSAYPVYC SGGGFLLSGP TARALRAAAR
   301  HTPLFPIDDA YMGMCLERAG LAPSGHEGIR PFGVQLPGAQ QSSFDPCMYR ELLLVHRFAP
   361  YEMLLMWKAL HSPALSCDRG HRVS

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against B3GNT6 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Other membrane
Secreted
No
Transmembrane segments
1
Mean surface accessibility (rSASA)
0.33
Highest tissue expression
24 nTPM

Expression across tissuesHPA

Tissue

  • stomach: 24 nTPM
  • colon: 20 nTPM
  • rectum: 16 nTPM
  • small intestine: 6.6 nTPM
  • salivary gland: 6.3 nTPM
  • duodenum: 5.1 nTPM

Single-cell type

  • goblet cells: 92 nCPM
  • esophageal apical cells: 22 nCPM
  • foveolar cells: 15 nCPM
  • submucosal glandular cells: 8.8 nCPM
  • oocytes: 4.6 nCPM
  • respiratory deuterosomal cells: 4.1 nCPM

Immune cell

  • basophil: 0.6 nTPM
  • neutrophil: 0.3 nTPM
  • NK-cell: 0.1 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM

Brain region

  • hypothalamus: 1 nTPM
  • white matter: 1 nTPM
  • pons: 0.8 nTPM
  • cerebral cortex: 0.7 nTPM
  • medulla oblongata: 0.7 nTPM
  • midbrain: 0.7 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about B3GNT6.

Disease | GeneticClinVar

1 pathogenic / likely-pathogenic of 62 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
1.89
gnomAD pLI
0
gnomAD missense Z
-0.22
DepMap mean gene effect
-0.09
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads B3GNT6 as an antibody target. Whether an autoantibody or antibody against B3GNT6 could matter depends on whether native B3GNT6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

B3GNT6 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label B3GNT6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/B3GNT6. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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