Seroatlas · Human Serome Atlas

ETFBKMT

Electron transfer flavoprotein beta subunit lysine methyltransferase

Also known as: C12orf72, DKFZp451L235, ETKMT_HUMAN, METTL20, MGC50559

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

Protein identityUniProt · HPA

UniProt accession
Q8IXQ9
Gene
ETFBKMT
Ensembl
ENSG00000139160
Chromosome
12
Canonical length
262 aa
Protein class
Predicted intracellular proteins

OverviewNCBI Gene

Enables heat shock protein binding activity and protein-lysine N-methyltransferase activity. Involved in negative regulation of fatty acid beta-oxidation using acyl-CoA dehydrogenase. Located in mitochondrial matrix. Part of protein-containing complex. [provided by Alliance of Genome Resources, Jul 2025]

Canonical amino-acid sequenceUniProt

262 residues, UniProt reviewed canonical sequence.

>Q8IXQ9|ETFBKMT
     1  MALSLGWKAH RNHCGLLLQA LRSSGLLLFP CGQCPWRGAG SFLDPEIKAF LEENTEVTSS
    61  GSLTPEIQLR LLTPRCKFWW ERADLWPHSD PYWAIYWPGG QALSRYLLDN PDVVRGKSVL
   121  DLGSGCGATA IAAKMSGASR ILANDIDPIA GMAITLNCEL NRLNPFPILI QNILNLEQDK
   181  WDLVVLGDMF YDEDLADSLH QWLKKCFWTY RTRVLIGDPG RPQFSGHSIQ HHLHKVVEYS
   241  LLESTRQENS GLTTSTVWGF QP

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against ETFBKMT 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)
0.3
Highest tissue expression
9.1 nTPM

Expression across tissuesHPA

Tissue

  • liver: 9.1 nTPM
  • tongue: 7.2 nTPM
  • skeletal muscle: 7.1 nTPM
  • kidney: 5.7 nTPM
  • retina: 5.7 nTPM
  • epididymis: 5 nTPM

Single-cell type

  • cardiomyocytes: 37 nCPM
  • thymic myoid cells: 25 nCPM
  • adrenal medulla cells: 21 nCPM
  • rod photoreceptor cells: 21 nCPM
  • hepatocytes: 21 nCPM
  • enterocytes: 20 nCPM

Immune cell

  • basophil: 8.5 nTPM
  • neutrophil: 4.5 nTPM
  • plasmacytoid DC: 2.5 nTPM
  • naive B-cell: 2.4 nTPM
  • eosinophil: 2.1 nTPM
  • memory B-cell: 2 nTPM

Brain region

  • cerebellum: 13 nTPM
  • white matter: 12 nTPM
  • cerebral cortex: 12 nTPM
  • basal ganglia: 11 nTPM
  • hypothalamus: 10 nTPM
  • spinal cord: 10 nTPM

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)
1.76
gnomAD pLI
0
DepMap mean gene effect
-0.01
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

  • methylation
  • negative regulation of fatty acid beta-oxidation using acyl-CoA dehydrogenase

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

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

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

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