GSTO2
Glutathione S-transferase omega-2
Also known as: GSTO2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9H4Y5
- Gene
- GSTO2
- Ensembl
- ENSG00000065621
- Chromosome
- 10
- Canonical length
- 243 aa
- Protein class
- Enzymes, Metabolic proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Nucleoli
OverviewNCBI Gene
The protein encoded by this gene is an omega class glutathione S-transferase (GST). GSTs are involved in the metabolism of xenobiotics and carcinogens. Four transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jul 2010]
Canonical amino-acid sequenceUniProt
243 residues, UniProt reviewed canonical sequence.
>Q9H4Y5|GSTO2
1 MSGDATRTLG KGSQPPGPVP EGLIRIYSMR FCPYSHRTRL VLKAKDIRHE VVNINLRNKP
61 EWYYTKHPFG HIPVLETSQC QLIYESVIAC EYLDDAYPGR KLFPYDPYER ARQKMLLELF
121 CKVPHLTKEC LVALRCGREC TNLKAALRQE FSNLEEILEY QNTTFFGGTC ISMIDYLLWP
181 WFERLDVYGI LDCVSHTPAL RLWISAMKWD PTVCALLMDK SIFQGFLNLY FQNNPNAFDF
241 GLCLocalizationUniProt · AlphaFold · HPA
Whether an antibody against GSTO2 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)
- 0.25
- Highest tissue expression
- 19 nTPM
Expression across tissuesHPA
Tissue
- testis: 19 nTPM
- pituitary gland: 9.8 nTPM
- pancreas: 7.4 nTPM
- skin: 7.1 nTPM
- kidney: 6.4 nTPM
- retina: 5.6 nTPM
Single-cell type
- late spermatids: 560 nCPM
- early spermatids: 488 nCPM
- medullary thymic epithelial cells: 149 nCPM
- gastric progenitor cells: 126 nCPM
- somatotrophs: 118 nCPM
- lactotrophs: 106 nCPM
Immune cell
- neutrophil: 1.7 nTPM
- T-reg: 1.2 nTPM
- NK-cell: 1 nTPM
- eosinophil: 0.7 nTPM
- naive CD4 T-cell: 0.7 nTPM
- gdT-cell: 0.5 nTPM
Brain region
- basal ganglia: 21 nTPM
- cerebral cortex: 20 nTPM
- white matter: 19 nTPM
- hypothalamus: 18 nTPM
- amygdala: 17 nTPM
- hippocampal formation: 17 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)
- 1.61
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.31
- DepMap mean gene effect
- 0
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cellular response to arsenic-containing substance
- glutathione metabolic process
- L-ascorbic acid metabolic process
- xenobiotic metabolic process
Molecular functions
- glutathione dehydrogenase (ascorbate) activity
- glutathione transferase activity
- identical protein binding
- methylarsonate reductase activity
- oxidoreductase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Glutathione S-transferase, N-terminal
- Glutathione S-transferase, omega-class
- Glutathione S-transferase, C-terminal-like
- Thioredoxin-like superfamily
- Glutathione S-transferase, C-terminal domain superfamily
- Glutathione transferase family
- Glutathione S-transferase Omega/HSP26
- Glutathione S-transferase, N-terminal domain
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads GSTO2 as an antibody target. Whether an autoantibody or antibody against GSTO2 could matter depends on whether native GSTO2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
GSTO2 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 GSTO2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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