Seroatlas · Human Serome Atlas

OXCT2

Succinyl-CoA:3-ketoacid coenzyme A transferase 2, mitochondrial

Also known as: FKSG25, FLJ00030, SCOT-T, SCOT2_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q9BYC2
Gene
OXCT2
Ensembl
ENSG00000198754
Chromosome
1
Canonical length
517 aa
Protein class
Enzymes, Metabolic proteins, Predicted intracellular proteins
Quaternary structure
Homodimer

OverviewNCBI Gene

The protein encoded by this gene catalyzes the transfer of a CoA group from succinate to acetoacetate and is an important enzyme in ketone body catabolism. The encoded protein localizes to the mitochondrion. This gene is intronless, and a pseudogene of this gene is located elsewhere on chromosome 1. [provided by RefSeq, Aug 2016]

Canonical amino-acid sequenceUniProt

517 residues, UniProt reviewed canonical sequence.

>Q9BYC2|OXCT2
     1  MAALRLLASV LGRGVPAGGS GLALSQGCAR CFATSPRLRA KFYADPVEMV KDISDGATVM
    61  IGGFGLCGIP ENLIAALLRT RVKDLQVVSS NVGVEDFGLG LLLAARQVRR IVCSYVGENT
   121  LCESQYLAGE LELELTPQGT LAERIRAGGA GVPAFYTPTG YGTLVQEGGA PIRYTPDGHL
   181  ALMSQPREVR EFNGDHFLLE RAIRADFALV KGWKADRAGN VVFRRSARNF NVPMCKAADV
   241  TAVEVEEIVE VGAFPPEDIH VPNIYVDRVI KGQKYEKRIE RLTILKEEDG DAGKEEDART
   301  RIIRRAALEF EDGMYANLGI GIPLLASNFI SPSMTVHLHS ENGILGLGPF PTEDEVDADL
   361  INAGKQTVTV LPGGCFFASD DSFAMIRGGH IQLTMLGAMQ VSKYGDLANW MIPGKKVKGM
   421  GGAMDLVSSQ KTRVVVTMQH CTKDNTPKIM EKCTMPLTGK RCVDRIITEK AVFDVHRKKE
   481  LTLRELWEGL TVDDIKKSTG CAFAVSPNLR PMQQVAP

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against OXCT2 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
70 nTPM

Expression across tissuesHPA

Tissue

  • testis: 70 nTPM
  • heart muscle: 6.2 nTPM
  • thymus: 3.6 nTPM
  • skin: 3 nTPM
  • ovary: 2.1 nTPM
  • cerebellum: 1.7 nTPM

Single-cell type

  • late spermatids: 2 nCPM
  • early spermatids: 0.6 nCPM
  • pericytes: 0.1 nCPM
  • adipocytes: 0 nCPM
  • adrenal cortex cells: 0 nCPM
  • adrenal medulla cells: 0 nCPM

Immune cell

  • memory B-cell: 0.8 nTPM
  • naive B-cell: 0.5 nTPM
  • NK-cell: 0.4 nTPM
  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM

Brain region

  • white matter: 11 nTPM
  • cerebral cortex: 5.7 nTPM
  • medulla oblongata: 5.4 nTPM
  • pons: 5.3 nTPM
  • cerebellum: 4.8 nTPM
  • spinal cord: 4.3 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)
1.96
gnomAD pLI
0
gnomAD missense Z
0.64
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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of OXCT2 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 OXCT2 as an antibody target. Whether an autoantibody or antibody against OXCT2 could matter depends on whether native OXCT2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

OXCT2 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 OXCT2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/OXCT2. 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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