Seroatlas · Human Serome Atlas

GNMT

Glycine N-methyltransferase

Also known as: GNMT_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q14749
Gene
GNMT
Ensembl
ENSG00000124713
Chromosome
6
Canonical length
295 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins
Subcellular location
Cytosol
Quaternary structure
Homotetramer

OverviewNCBI Gene

This locus represents naturally occurring readthrough transcription between the upstream CNPY3 (canopy FGF signaling regulator 3) and the downstream GNMT (glycine N-methyltransferase) genes. Readthrough transcripts may encode proteins that have amino acid similarity with proteins encoded by both individual genes. [provided by RefSeq, Jan 2016]

Canonical amino-acid sequenceUniProt

295 residues, UniProt reviewed canonical sequence.

>Q14749|GNMT
     1  MVDSVYRTRS LGVAAEGLPD QYADGEAARV WQLYIGDTRS RTAEYKAWLL GLLRQHGCQR
    61  VLDVACGTGV DSIMLVEEGF SVTSVDASDK MLKYALKERW NRRHEPAFDK WVIEEANWMT
   121  LDKDVPQSAE GGFDAVICLG NSFAHLPDCK GDQSEHRLAL KNIASMVRAG GLLVIDHRNY
   181  DHILSTGCAP PGKNIYYKSD LTKDVTTSVL IVNNKAHMVT LDYTVQVPGA GQDGSPGLSK
   241  FRLSYYPHCL ASFTELLQAA FGGKCQHSVL GDFKPYKPGQ TYIPCYFIHV LKRTD

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against GNMT 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
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.26
Highest tissue expression
564 nTPM

Expression across tissuesHPA

Tissue

  • pancreas: 564 nTPM
  • liver: 279 nTPM
  • stomach: 49 nTPM
  • prostate: 20 nTPM
  • salivary gland: 9.2 nTPM
  • pituitary gland: 8.6 nTPM

Single-cell type

  • hepatocytes: 1,066 nCPM
  • pancreatic acinar cells: 170 nCPM
  • prostatic glandular cells: 39 nCPM
  • breast hormone-responsive cells: 29 nCPM
  • gastric chief cells: 27 nCPM
  • cholangiocytes: 18 nCPM

Immune cell

  • plasmacytoid DC: 0.7 nTPM
  • neutrophil: 0.5 nTPM
  • intermediate monocyte: 0.2 nTPM
  • myeloid DC: 0.2 nTPM
  • naive CD8 T-cell: 0.2 nTPM
  • classical monocyte: 0.1 nTPM

Brain region

  • cerebellum: 8.6 nTPM
  • cerebral cortex: 7.9 nTPM
  • basal ganglia: 7.8 nTPM
  • hypothalamus: 7.7 nTPM
  • amygdala: 7.1 nTPM
  • hippocampal formation: 7.1 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about GNMT.

Disease | AllUniProt

Conditions GNMT is implicated in, by any mechanism.

Disease | GeneticClinVar

2 pathogenic / likely-pathogenic of 138 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)
0.95
gnomAD pLI
0
gnomAD missense Z
0.35
DepMap mean gene effect
-0.09
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% 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

InteractionsUniProt · HPA

Protein binding partners of GNMT in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

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

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

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