Seroatlas · Human Serome Atlas

MGAT2

Alpha-1,6-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase

Also known as: GNT-II, MGAT2_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q10469
Gene
MGAT2
Ensembl
ENSG00000168282
Chromosome
14
Canonical length
447 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins
Subcellular location
Golgi apparatus
Quaternary structure
Homodimer

OverviewNCBI Gene

The product of this gene is a Golgi enzyme catalyzing an essential step in the conversion of oligomannose to complex N-glycans. The enzyme has the typical glycosyltransferase domains: a short N-terminal cytoplasmic domain, a hydrophobic non-cleavable signal-anchor domain, and a C-terminal catalytic domain. Mutations in this gene may lead to carbohydrate-deficient glycoprotein syndrome, type II. The coding region of this gene is intronless. Transcript variants with a spliced 5' UTR may exist, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

447 residues, UniProt reviewed canonical sequence.

>Q10469|MGAT2
     1  MRFRIYKRKV LILTLVVAAC GFVLWSSNGR QRKNEALAPP LLDAEPARGA GGRGGDHPSV
    61  AVGIRRVSNV SAASLVPAVP QPEADNLTLR YRSLVYQLNF DQTLRNVDKA GTWAPRELVL
   121  VVQVHNRPEY LRLLLDSLRK AQGIDNVLVI FSHDFWSTEI NQLIAGVNFC PVLQVFFPFS
   181  IQLYPNEFPG SDPRDCPRDL PKNAALKLGC INAEYPDSFG HYREAKFSQT KHHWWWKLHF
   241  VWERVKILRD YAGLILFLEE DHYLAPDFYH VFKKMWKLKQ QECPECDVLS LGTYSASRSF
   301  YGMADKVDVK TWKSTEHNMG LALTRNAYQK LIECTDTFCT YDDYNWDWTL QYLTVSCLPK
   361  FWKVLVPQIP RIFHAGDCGM HHKKTCRPST QSAQIESLLN NNKQYMFPET LTISEKFTVV
   421  AISPPRKNGG WGDIRDHELC KSYRRLQ

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against MGAT2 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)
0.32
Highest tissue expression
38 nTPM

Expression across tissuesHPA

Tissue

  • liver: 38 nTPM
  • lymph node: 24 nTPM
  • tonsil: 24 nTPM
  • appendix: 23 nTPM
  • testis: 23 nTPM
  • pancreas: 22 nTPM

Single-cell type

  • hepatocytes: 71 nCPM
  • plasma cells: 68 nCPM
  • megakaryocytes: 56 nCPM
  • extravillous trophoblasts: 55 nCPM
  • decidual stromal cells: 50 nCPM
  • early primary spermatocytes: 49 nCPM

Immune cell

  • basophil: 49 nTPM
  • plasmacytoid DC: 47 nTPM
  • total PBMC: 45 nTPM
  • myeloid DC: 40 nTPM
  • non-classical monocyte: 40 nTPM
  • eosinophil: 39 nTPM

Brain region

  • choroid plexus: 18 nTPM
  • thalamus: 14 nTPM
  • white matter: 14 nTPM
  • spinal cord: 13 nTPM
  • cerebellum: 13 nTPM
  • hypothalamus: 13 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about MGAT2.

Disease | AllUniProt

Conditions MGAT2 is implicated in, by any mechanism.

Disease | GeneticClinVar

14 pathogenic / likely-pathogenic of 173 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)
0.72
gnomAD pLI
0.03
gnomAD missense Z
0.52
DepMap mean gene effect
-0.16
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% 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 MGAT2 as an antibody target. Whether an autoantibody or antibody against MGAT2 could matter depends on whether native MGAT2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

MGAT2 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 MGAT2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/MGAT2. 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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