GPX7

gene
On this page

Also known as FLJ14777GPX6NPGPx

Summary

GPX7 (glutathione peroxidase 7, HGNC:4559) is a protein-coding gene on chromosome 1p32.3, encoding Glutathione peroxidase 7 (Q96SL4). It protects esophageal epithelia from hydrogen peroxide-induced oxidative stress.

Enables catalase activity. Predicted to be involved in cellular response to oxidative stress. Located in endoplasmic reticulum. Implicated in Barrett’s adenocarcinoma and Barrett’s esophagus.

Source: NCBI Gene 2882 — RefSeq curated summary.

At a glance

  • GWAS associations: 1
  • Clinical variants (ClinVar): 27 total
  • MANE Select transcript: NM_015696

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:4559
Approved symbolGPX7
Nameglutathione peroxidase 7
Location1p32.3
Locus typegene with protein product
StatusApproved
AliasesFLJ14777, GPX6, NPGPx
Ensembl geneENSG00000116157
Ensembl biotypeprotein_coding
OMIM615784
Entrez2882

Gene structure

Transcript identifiers

Ensembl transcripts: 2 — 1 protein_coding, 1 protein_coding_CDS_not_defined

ENST00000361314, ENST00000459779

RefSeq mRNA: 1 — MANE Select: NM_015696 NM_015696

CCDS: CCDS569

Canonical transcript exons

ENST00000361314 — 3 exons

ExonStartEnd
ENSE000008357365260668452606945
ENSE000014346775260237152602547
ENSE000014357775260826252609051

Expression profiles

Bgee: expression breadth ubiquitous, 198 present calls, max score 90.07.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 13.8313 / max 121.1757, expressed in 1350 samples.

FANTOM5 promoters (1 alternative TSS)

Promoter IDTPM avgSamples expressed
287813.83131350

Top tissues by expression

285 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
adrenal tissueUBERON:001830390.07gold quality
ventricular zoneUBERON:000305388.49gold quality
cartilage tissueUBERON:000241887.22gold quality
ganglionic eminenceUBERON:000402385.70gold quality
periodontal ligamentUBERON:000826684.50silver quality
gall bladderUBERON:000211084.28gold quality
granulocyteCL:000009483.88gold quality
right lobe of thyroid glandUBERON:000111983.70gold quality
left lobe of thyroid glandUBERON:000112083.50gold quality
adenohypophysisUBERON:000219682.71gold quality
thyroid glandUBERON:000204682.56gold quality
embryoUBERON:000092282.28gold quality
left uterine tubeUBERON:000130382.19gold quality
endocervixUBERON:000045882.15gold quality
ascending aortaUBERON:000149681.93gold quality
islet of LangerhansUBERON:000000681.87gold quality
descending thoracic aortaUBERON:000234581.87gold quality
thoracic aortaUBERON:000151581.82gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047381.80gold quality
stromal cell of endometriumCL:000225581.60gold quality
pituitary glandUBERON:000000781.55gold quality
hindlimb stylopod muscleUBERON:000425281.46gold quality
bone marrowUBERON:000237181.17gold quality
tibiaUBERON:000097981.06gold quality
endometriumUBERON:000129581.02gold quality
left coronary arteryUBERON:000162681.01gold quality
body of pancreasUBERON:000115080.88gold quality
mucosa of stomachUBERON:000119980.83gold quality
cortical plateUBERON:000534380.80gold quality
body of uterusUBERON:000985380.79gold quality

Single-cell (SCXA)

Detected in 3 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes8.99
E-MTAB-6379no211.89
E-MTAB-9543no1.22

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

61 targeting GPX7, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-29A-3P100.0073.111835
HSA-MIR-29B-3P100.0073.181833
HSA-MIR-29C-3P100.0073.151833
HSA-MIR-5692A100.0074.406850
HSA-MIR-513A-5P100.0069.772465
HSA-MIR-4476100.0068.182030
HSA-MIR-6876-5P100.0067.682126
HSA-MIR-3064-3P100.0070.091254
HSA-MIR-450099.9972.722367
HSA-MIR-196A-1-3P99.9972.152772
HSA-MIR-33A-5P99.9968.621055
HSA-MIR-33B-5P99.9968.581062
HSA-MIR-548AW99.9972.573559
HSA-LET-7A-5P99.9872.291790
HSA-LET-7B-5P99.9872.311790
HSA-LET-7C-5P99.9872.291790
HSA-LET-7E-5P99.9872.291790
HSA-LET-7F-5P99.9872.561784
HSA-LET-7G-5P99.9872.371784
HSA-LET-7I-5P99.9872.371788
HSA-MIR-98-5P99.9872.331787
HSA-MIR-569699.9872.364487
HSA-MIR-60799.9773.625593
HSA-MIR-1250-3P99.9670.044038
HSA-LET-7D-5P99.9671.761632
HSA-MIR-445899.9671.641650
HSA-MIR-767-5P99.9570.85993
HSA-MIR-6845-3P99.9466.881439
HSA-MIR-498-3P99.9171.271114
HSA-MIR-367199.9073.043897

Literature-anchored findings (GeneRIF, showing 15)

  • NPGPx plays an essential role in breast cancer cells in alleviating oxidative stress generated from polyunsaturated fatty acid metabolism (PMID:15294905)
  • GPx7 labeled as secreted glutathione peroxidase, is actually endoplasmic reticulum-resident protein disulfide isomerase peroxidase (PMID:21215271)
  • NPGPx is essential for releasing excessive ER stress by enhancing GRP78 chaperone activity to maintain physiological homeostasis. (PMID:23123197)
  • GPx7 is an unusual CysGPx catalyzing the peroxidatic cycle by a one Cys mechanism in which GSH and PDI are alternative substrates. (PMID:23454490)
  • tumour suppressor functions in esophageal adenocarcinomas and silenced by location-specific promoter DNA methylation (PMID:23580780)
  • NPGPx protects against fat accumulation in mice and human via modulating ROS (PMID:23828861)
  • GPx7 promotes oxidative protein folding, directly utilizing Ero1alpha-generated hydrogen peroxide in the early secretory compartment. (PMID:23919619)
  • Loss of glutathione peroxidase 7 promotes TNF-alpha-induced NF-kappaB activation in Barrett’s carcinogenesis. (PMID:24692067)
  • SNPs most associated with Chemotherapy-induced peripheral neuropathy were in ATP-binding cassette sub-family C member 4 (ABCC4) gene. (PMID:25586538)
  • use GPX4 and GPX7 as possible markers for improving HCC diagnosis/prognosis. (PMID:26708178)
  • Characterization of the endoplasmic reticulum-resident peroxidases GPx7 and GPx8 shows the higher oxidative activity of GPx7 and its linkage to oxidative protein folding. (PMID:32719007)
  • MicroRNAs mediated regulation of glutathione peroxidase 7 expression and its changes during adipogenesis. (PMID:34339889)
  • GPX7 Facilitates BMSCs Osteoblastogenesis via ER Stress and mTOR Pathway. (PMID:34626080)
  • Comprehensive analysis of epigenetics regulation, prognostic and the correlation with immune infiltrates of GPX7 in adult gliomas. (PMID:35440701)
  • GPX7 reduces chondrocyte inflammation and extracellular matrix degradation triggered by IL-1beta, via a mechanism mediated by ferroptosis. (PMID:38757339)

Cross-species orthologs

8 orthologs

OrganismSymbolGene ID
danio_reriogpx7ENSDARG00000091511
mus_musculusGpx7ENSMUSG00000028597
rattus_norvegicusGpx7ENSRNOG00000009751
caenorhabditis_elegansWBGENE00007516
caenorhabditis_elegansWBGENE00007517
caenorhabditis_elegansWBGENE00011045
caenorhabditis_elegansgpx-8WBGENE00018850
caenorhabditis_elegansWBGENE00022377

Paralogs (7): GPX8 (ENSG00000164294), GPX4 (ENSG00000167468), GPX2 (ENSG00000176153), GPX6 (ENSG00000198704), GPX3 (ENSG00000211445), GPX5 (ENSG00000224586), GPX1 (ENSG00000233276)

Protein

Protein identifiers

Glutathione peroxidase 7Q96SL4 (reviewed: Q96SL4)

Alternative names: CL683

All UniProt accessions (1): Q96SL4

UniProt curated annotations — full annotation on UniProt →

Function. It protects esophageal epithelia from hydrogen peroxide-induced oxidative stress. It suppresses acidic bile acid-induced reactive oxygen species (ROS) and protects against oxidative DNA damage and double-strand breaks.

Subcellular location. Secreted.

Tissue specificity. Expressed in esophageal epithelial cells; expression is up-regulated after exposure to acidic bile acids.

Disease relevance. Barrett esophagus (BE) [MIM:614266] A condition characterized by a metaplastic change in which normal esophageal squamous epithelium is replaced by a columnar and intestinal-type epithelium. Patients with Barrett esophagus have an increased risk of esophageal adenocarcinoma. The main cause of Barrett esophagus is gastroesophageal reflux. The retrograde movement of acid and bile salts from the stomach into the esophagus causes prolonged injury to the esophageal epithelium and induces chronic esophagitis, which in turn is believed to trigger the pathologic changes. The disease is caused by variants affecting the gene represented in this entry. The pathologic mechanisms leading to Barrett esophagus involve GPX7 dysfunction that results in higher levels of hydrogen peroxide and ROS-induced oxidative stress and DNA damage in esophageal cells.

Similarity. Belongs to the glutathione peroxidase family.

RefSeq proteins (1): NP_056511* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000889Glutathione_peroxidaseFamily
IPR013376Glut_perox_Gpx7Family
IPR029759GPX_ASActive_site
IPR029760GPX_CSConserved_site
IPR036249Thioredoxin-like_sfHomologous_superfamily

Pfam: PF00255

Enzyme classification (BRENDA):

  • EC 1.11.1.9 — glutathione peroxidase (BRENDA: 58 organisms, 96 substrates, 65 inhibitors, 63 Km, 23 kcat entries)

Substrate kinetics (BRENDA)

12 substrates with measured Km, best-characterized 12. Km ranges are aggregated across organisms/conditions.

SubstrateKm (mM)Measurements
H2O20.0023–19.0819
GSH0.033–11.118
CUMENE HYDROPEROXIDE0.006–7.86
TERT-BUTYL HYDROPEROXIDE0.059–7.96
GLUTATHIONE0.022–1.734
CUMENE PEROXIDE0.09–0.422
L-ALPHA-PHOSPHATIDYLCHOLINE HYDROPEROXIDE0.026–9.72
LINOLENIC ACID HYDROPEROXIDE0.007–3.82
CHOLESTEROL 5ALPHA-HYDROPEROXIDE0.0041
CHOLESTEROL 7ALPHA-HYDROPEROXIDE0.0111
CHOLESTEROL 7BETA-HYDROPEROXIDE0.0031
TERT-BUTYLHYDROPEROXIDE0.0241

Catalyzed reactions (Rhea), 1 shown:

  • 2 glutathione + H2O2 = glutathione disulfide + 2 H2O (RHEA:16833)

UniProt features (18 total): helix 7, strand 7, signal peptide 1, chain 1, active site 1, sequence conflict 1

Structure

Experimental structures (PDB)

1 structures.

PDBMethodResolution (Å)
2P31X-RAY DIFFRACTION2

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q96SL4-F193.240.86

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Catalytic / active sites (1): 57

Function

Pathways and Gene Ontology

Reactome pathways

1 pathways

IDPathway
R-HSA-3299685Detoxification of Reactive Oxygen Species

MSigDB gene sets: 176 (showing top): TGGTGCT_MIR29A_MIR29B_MIR29C, CHANDRAN_METASTASIS_DN, GOBP_CELLULAR_RESPONSE_TO_TOXIC_SUBSTANCE, SHETH_LIVER_CANCER_VS_TXNIP_LOSS_PAM5, GOBP_DETOXIFICATION, GGCAGTG_MIR3243P, GOMF_ANTIOXIDANT_ACTIVITY, GOMF_OXIDOREDUCTASE_ACTIVITY_ACTING_ON_PEROXIDE_AS_ACCEPTOR, GOBP_RESPONSE_TO_TOXIC_SUBSTANCE, TAKEDA_TARGETS_OF_NUP98_HOXA9_FUSION_16D_UP, ACEVEDO_LIVER_CANCER_UP, GOCC_ENDOPLASMIC_RETICULUM_LUMEN, SCHUETZ_BREAST_CANCER_DUCTAL_INVASIVE_UP, GOMF_GLUTATHIONE_PEROXIDASE_ACTIVITY, KEGG_GLUTATHIONE_METABOLISM

GO Biological Process (3): cellular response to oxidative stress (GO:0034599), response to oxidative stress (GO:0006979), cellular oxidant detoxification (GO:0098869)

GO Molecular Function (5): catalase activity (GO:0004096), peroxidase activity (GO:0004601), glutathione peroxidase activity (GO:0004602), protein binding (GO:0005515), oxidoreductase activity (GO:0016491)

GO Cellular Component (3): extracellular region (GO:0005576), endoplasmic reticulum (GO:0005783), endoplasmic reticulum lumen (GO:0005788)

Reactome top-level categories

Rollup of top-1 pathways:

CategoryPathways
Cellular response to chemical stress1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
peroxidase activity2
response to oxidative stress1
cellular response to chemical stress1
response to stress1
cellular detoxification1
antioxidant activity1
oxidoreductase activity, acting on peroxide as acceptor1
binding1
catalytic activity1
cellular anatomical structure1
cytoplasm1
endomembrane system1
intracellular membrane-bounded organelle1
endoplasmic reticulum1
intracellular organelle lumen1

Protein interactions and networks

STRING

3544 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
GPX7GSRP00390968
GPX7TXNP10599902
GPX7XDHP47989884
GPX7F5H3C5F5H3C5858
GPX7SOD2P04179858
GPX7TXNRD1Q16881844
GPX7GLRXP35754842
GPX7HMOX1P09601837
GPX7SOD1P00441828
GPX7GPTP24298813
GPX7H6PDO95479803
GPX7G6PDP11413802
GPX7NFE2L2Q16236800
GPX7TXNRD3Q86VQ6790
GPX7MSRB1Q9NZV6780

IntAct

61 interactions, top by confidence:

ABTypeScore
GPX7GET3psi-mi:“MI:0915”(physical association)0.720
GET3GPX7psi-mi:“MI:0915”(physical association)0.720
SGTAGPX7psi-mi:“MI:0915”(physical association)0.700
GPX7SGTApsi-mi:“MI:0915”(physical association)0.700
GPX7GAKpsi-mi:“MI:0914”(association)0.640
TGIF2LYPGPpsi-mi:“MI:0914”(association)0.640
CEP70GPX7psi-mi:“MI:0915”(physical association)0.560
GPX7CEP70psi-mi:“MI:0915”(physical association)0.560
GPX7UBQLN2psi-mi:“MI:0915”(physical association)0.560
GPX7CPNE7psi-mi:“MI:0915”(physical association)0.560
NTAQ1GPX7psi-mi:“MI:0915”(physical association)0.560
GPX7TCF25psi-mi:“MI:0915”(physical association)0.560
NCALDGPX7psi-mi:“MI:0915”(physical association)0.560
SGTBGPX7psi-mi:“MI:0915”(physical association)0.560
ASPHGPX7psi-mi:“MI:0915”(physical association)0.560
DMWDGPX7psi-mi:“MI:0915”(physical association)0.560
GPX7SPRED1psi-mi:“MI:0915”(physical association)0.560
HTTGPX7psi-mi:“MI:0915”(physical association)0.560

BioGRID (94): HSPA5 (Affinity Capture-MS), HSPA9 (Affinity Capture-MS), PDIA4 (Affinity Capture-MS), EEF1A1 (Affinity Capture-MS), DNAJB11 (Affinity Capture-MS), HIST1H1B (Affinity Capture-MS), HSPA5 (Affinity Capture-Western), GPX7 (Affinity Capture-Western), GPX7 (Two-hybrid), CEP70 (Two-hybrid), SGTA (Two-hybrid), GPX7 (PCA), P4HB (Affinity Capture-Western), UTP6 (Affinity Capture-MS), GAK (Affinity Capture-MS)

ESM2 similar proteins: A4FV98, A6NKP2, A6QLY2, O18735, O43488, O75382, O75648, O77485, O77486, O88676, P04626, P23764, P25325, P34059, P52848, Q02353, Q0VD18, Q10836, Q10981, Q10982, Q28113, Q32KH5, Q32KJ6, Q3U129, Q3UHN9, Q4R766, Q571E4, Q5I0D5, Q5RB73, Q5RJL2, Q6AYT7, Q6P988, Q7RTV5, Q7Z4H8, Q8CIW5, Q8K093, Q8N2K0, Q8WNQ7, Q96AZ1, Q96SL4

Diamond homologs: A1KV41, A6QLY2, G9JJU2, O02621, O04922, O08368, O18994, O22448, O22850, O23814, O23968, O23970, O24031, O24296, O32770, O46607, O48646, O49069, O59858, O62327, O70325, O75715, P00435, P04041, P06610, P07203, P0A0T4, P0A0T5, P0C2T0, P11352, P11909, P18283, P21765, P22352, P28714, P30708, P30710, P35666, P36014, P36968

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

27 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance17
Likely benign1
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

628 predictions. Top by Δscore:

VariantEffectΔscore
1:52602543:GATCG:Gdonor_gain1.0000
1:52602548:G:GAdonor_loss1.0000
1:52602548:G:GGdonor_gain1.0000
1:52602549:T:Adonor_loss1.0000
1:52606681:CAGGT:Cacceptor_loss1.0000
1:52606682:A:AGacceptor_gain1.0000
1:52606683:G:GCacceptor_gain1.0000
1:52606683:GGT:Gacceptor_gain1.0000
1:52606840:GAGAT:Gdonor_gain1.0000
1:52606941:GGCCC:Gdonor_gain1.0000
1:52606942:GCCC:Gdonor_gain1.0000
1:52606942:GCCCG:Gdonor_gain1.0000
1:52606946:G:GGdonor_gain1.0000
1:52602532:G:GTdonor_gain0.9900
1:52602545:TCG:Tdonor_gain0.9900
1:52602550:GAGT:Gdonor_loss0.9900
1:52606674:T:TAacceptor_gain0.9900
1:52606679:T:Gacceptor_gain0.9900
1:52606680:ACAG:Aacceptor_gain0.9900
1:52606681:C:Gacceptor_gain0.9900
1:52606682:AG:Aacceptor_gain0.9900
1:52606682:AGGT:Aacceptor_gain0.9900
1:52606683:GG:Gacceptor_gain0.9900
1:52606683:GGTG:Gacceptor_gain0.9900
1:52606683:GGTGT:Gacceptor_gain0.9900
1:52606943:CCC:Cdonor_gain0.9900
1:52606944:CC:Cdonor_gain0.9900
1:52606945:CGTAA:Cdonor_loss0.9900
1:52606946:G:GCdonor_loss0.9900
1:52606947:T:Gdonor_loss0.9900

AlphaMissense

1206 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
1:52608290:C:AN143K0.997
1:52608290:C:GN143K0.997
1:52606701:T:AN52K0.996
1:52606701:T:GN52K0.996
1:52606795:T:CF84L0.996
1:52606797:C:AF84L0.996
1:52606797:C:GF84L0.996
1:52606810:T:CF89L0.996
1:52606812:T:AF89L0.996
1:52606812:T:GF89L0.996
1:52608319:G:TG153V0.996
1:52608291:T:CF144L0.995
1:52608293:C:AF144L0.995
1:52608293:C:GF144L0.995
1:52606781:T:CF79S0.994
1:52606803:C:GC86W0.994
1:52606754:T:CL70P0.993
1:52606796:T:CF84S0.993
1:52606879:T:CF112L0.993
1:52606881:C:AF112L0.993
1:52606881:C:GF112L0.993
1:52606802:G:AC86Y0.992
1:52606930:T:CF129L0.991
1:52606932:C:AF129L0.991
1:52606932:C:GF129L0.991
1:52608299:G:CK146N0.991
1:52608299:G:TK146N0.991
1:52608307:T:AV149E0.991
1:52606787:T:AV81E0.989
1:52606811:T:GF89C0.989

dbSNP variants (sampled 300 via entrez): RS1000019423 (1:52603197 C>G), RS1000477403 (1:52609050 C>T), RS1000517957 (1:52609296 T>C,G), RS1000621703 (1:52601897 A>G), RS1000993913 (1:52601465 T>C), RS1001520140 (1:52607966 G>C), RS1002083918 (1:52600455 C>T), RS1002380673 (1:52604908 G>A), RS1002490190 (1:52605797 C>T), RS1002966280 (1:52609093 G>C), RS1003095540 (1:52601321 T>G), RS1003192175 (1:52603060 A>G), RS1003344038 (1:52608745 G>A), RS1006041121 (1:52609130 A>G), RS1006187606 (1:52604172 A>C)

Disease associations

OMIM: gene MIM:615784 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

1 associations (top):

StudyTraitp-value
GCST003998_18Joint mobility (Beighton score)2.000000e-07

EFO canonical traits (1, from GWAS)

EFO IDTrait name
EFO:0007905joint hypermobility measurement

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

49 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects cotreatment, decreases expression, affects expression9
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamidedecreases expression, increases expression, affects cotreatment2
Phenylmercuric Acetateaffects cotreatment, decreases expression2
Cyclosporinedecreases expression2
Particulate Matterincreases abundance, increases expression2
GSK-J4decreases expression1
tungsten carbideaffects binding, decreases expression1
naringeninincreases expression, affects cotreatment1
bis(tri-n-butyltin)oxideincreases expression1
pirinixic acidaffects binding, decreases expression, increases activity1
bisphenol Aincreases methylation1
trichostatin Aincreases reaction, affects expression, affects methylation1
tris(1,3-dichloro-2-propyl)phosphatedecreases expression1
sodium arsenitedecreases expression1
cobaltous chlorideincreases expression1
ochratoxin Adecreases expression1
cerous chloridedecreases expression, affects cotreatment1
lanthanum chlorideaffects cotreatment, decreases expression1
nickel sulfatedecreases expression1
perfluorooctane sulfonic aciddecreases expression1
belinostatdecreases expression1
bisphenol Bincreases expression1
dorsomorphinaffects cotreatment, decreases expression1
bisphenol Sincreases expression1
incobotulinumtoxinAdecreases expression1
(+)-JQ1 compounddecreases expression1
bisphenol AFincreases expression1
Decitabineaffects methylation, increases reaction, affects expression1
Arsenic Trioxideincreases expression1
Vorinostatdecreases expression1

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.