GSTM2
Glutathione S-transferase Mu 2
Also known as: GST4, GSTM2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P28161
- Gene
- GSTM2
- Ensembl
- ENSG00000213366
- Chromosome
- 1
- Canonical length
- 218 aa
- Protein class
- Enzymes, Metabolic proteins, Predicted intracellular proteins
- Subcellular location
- Microtubules,Cytokinetic bridge,Primary cilium,Primary cilium tip,Primary cilium transition zone,Cytosol
- Quaternary structure
- Homodimer
OverviewNCBI Gene
Cytosolic and membrane-bound forms of glutathione S-transferase are encoded by two distinct supergene families. At present, eight distinct classes of the soluble cytoplasmic mammalian glutathione S-transferases have been identified: alpha, kappa, mu, omega, pi, sigma, theta and zeta. This gene encodes a glutathione S-transferase that belongs to the mu class. The mu class of enzymes functions in the detoxification of electrophilic compounds, including carcinogens, therapeutic drugs, environmental toxins and products of oxidative stress, by conjugation with glutathione. The genes encoding the mu class of enzymes are organized in a gene cluster on chromosome 1p13.3 and are known to be highly polymorphic. These genetic variations can change an individual's susceptibility to carcinogens and toxins as well as affect the toxicity and efficacy of certain drugs. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
218 residues, UniProt reviewed canonical sequence.
>P28161|GSTM2
1 MPMTLGYWNI RGLAHSIRLL LEYTDSSYEE KKYTMGDAPD YDRSQWLNEK FKLGLDFPNL
61 PYLIDGTHKI TQSNAILRYI ARKHNLCGES EKEQIREDIL ENQFMDSRMQ LAKLCYDPDF
121 EKLKPEYLQA LPEMLKLYSQ FLGKQPWFLG DKITFVDFIA YDVLERNQVF EPSCLDAFPN
181 LKDFISRFEG LEKISAYMKS SRFLPRPVFT KMAVWGNKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against GSTM2 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
- 232 nTPM
Expression across tissuesHPA
Tissue
- ovary: 232 nTPM
- skeletal muscle: 211 nTPM
- basal ganglia: 169 nTPM
- prostate: 158 nTPM
- cervix: 145 nTPM
- choroid plexus: 140 nTPM
Single-cell type
- hematopoietic stem cells: 75 nCPM
- mast cells: 64 nCPM
- fibro-adipogenic progenitors: 49 nCPM
- medullary thymic epithelial cells: 41 nCPM
- pituitary stem cells: 39 nCPM
- adipocytes: 37 nCPM
Immune cell
- naive CD4 T-cell: 35 nTPM
- eosinophil: 31 nTPM
- plasmacytoid DC: 30 nTPM
- myeloid DC: 23 nTPM
- NK-cell: 18 nTPM
- naive CD8 T-cell: 15 nTPM
Brain region
- choroid plexus: 86 nTPM
- basal ganglia: 82 nTPM
- hypothalamus: 73 nTPM
- midbrain: 57 nTPM
- medulla oblongata: 51 nTPM
- spinal cord: 50 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)
- 1.39
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.84
- DepMap mean gene effect
- -0.1
- 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
- cellular detoxification of nitrogen compound
- cellular response to caffeine
- glutathione metabolic process
- hepoxilin biosynthetic process
- linoleic acid metabolic process
- nitrobenzene metabolic process
- regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion
- regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum
- regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion
- relaxation of cardiac muscle
- xenobiotic catabolic process
Molecular functions
- calcium channel inhibitor activity
- enzyme binding
- fatty acid binding
- glutathione binding
- glutathione peroxidase activity
- glutathione transferase activity
- protein homodimerization activity
- transmembrane transporter binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Glutathione S-transferase, Mu class
- Glutathione S-transferase, N-terminal
- Glutathione S-transferase, C-terminal
- Glutathione S-transferase, C-terminal-like
- Thioredoxin-like superfamily
- Glutathione S-transferase, C-terminal domain superfamily
- Glutathione transferase family
- Glutathione S-transferase superfamily
- Glutathione S-transferase, C-terminal domain
- Glutathione S-transferase, N-terminal domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of GSTM2 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 GSTM2 as an antibody target. Whether an autoantibody or antibody against GSTM2 could matter depends on whether native GSTM2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
GSTM2 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 GSTM2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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