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 PMQQVAPLocalizationUniProt · 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.
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