ArticleHuman genetics2008
The human gamma-glutamyltransferase gene family.
Article in Human genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 2 of them syntheses that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
87 citing papers in PubMed, 2 syntheses or guidelines pooled it, 154 citations in OpenAlex.
- From Gene to Enzyme: Multidimensional Decoding of the GGT Molecular Family and Its Clinical Tumor Diagnosis.Cancer medicine · 2025Pooled it
- Risk of mortality in COVID-19 patients: a meta- and network analysis.Scientific reports · 2023Pooled it
- Cross-Platform Analysis of Endothelial Transcriptomic Changes Associated with Diabetes.Research square · 2026Article
- Article
- Loss of GGT6 promotes colorectal cancer progression and correlates with poor prognosis: a study based on multi-database mining and functional validation.Translational cancer research · 2026Article
- From Serum to Genome: γ-Glutamyltransferase Gene Family Variants Shape Ischemic Stroke Risk via Sex-Specific Gene-Environment Interactions.Life (Basel, Switzerland) · 2026Article
- GGT1 protects against calcium oxalate crystal-induced renal tubular epithelial cell injury by targeting GCLC.Urolithiasis · 2025Article
- The metabolic advantage of being young and male in obesity treatment outcomes in mice.npj metabolic health and disease · 2025Article
- Evaluation of PE5 Entries on the Human Proteome Project Target List.Journal of proteome research · 2025Article
- The ferroptosis-related gene GGTLC2 is identified as a novel biomarker for gastric cancer within the GGT family, with associations to immune infiltration and liver metastasis.Functional & integrative genomics · 2025Article
- Systematic interrogation of functional genes underlying cholesterol and lipid homeostasis.Genome biology · 2025Article
- Identification and verification of biomarkers associated with arachidonic acid metabolism in non-alcoholic fatty liver disease.Scientific reports · 2025Article
- Aberrant expression of multiple γ-glutamyltransferases is associated with tumor progression and patient outcome in prostate cancers.Frontiers in oncology · 2025Article
- Crocin promotes ferroptosis in gastric cancer via the Nrf2/GGTLC2 pathway.Frontiers in pharmacology · 2025Article
- GGTLC1 Is a Prognostic Biomarker in Renal Clear Cell Carcinoma.International journal of genomics · 2025Article
- RNA-Seq transcriptome profiling of Nile rat livers reveals novel insights on the anti-diabetic mechanisms of Water-Soluble Palm Fruit Extract.Journal of applied genetics · 2024Article
- Impaired striatal glutathione-ascorbate metabolism induces transient dopamine increase and motor dysfunction.Nature metabolism · 2024Article
- GGT5 as a promising prognostic biomarker and its effects on tumor cell progression in gastric cancer.Translational cancer research · 2024Article
- Glutathione‑degrading enzymes in the complex landscape of tumors (Review).International journal of oncology · 2024Review
- GGTLC1 knockdown inhibits the progression of endometrial cancer by regulating the TGF-β/Smad signaling pathway.Heliyon · 2024Article
27 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
Assays for gamma-glutamyl transferase (GGT1, EC 2.3.2.2) activity in blood are widely used in a clinical setting to measure tissue damage. The well-characterized GGT1 is an extracellular enzyme that is anchored to the plasma membrane of cells. There, it hydrolyzes and transfers gamma-glutamyl moieties from glutathione and other gamma-glutamyl compounds to acceptors. As such, it has a critical function in the metabolism of glutathione and in the conversion of the leukotriene LTC4 to LTD4. GGT deficiency in man is rare and for the few patients reported to date, mutations in GGT1 have not been described. These patients do secrete glutathione in urine and fail to metabolize LTC4. Earlier pre-genome investigations had indicated that besides GGT1, the human genome contains additional related genes or sequences. These sequences were given multiple different names, leading to inconsistencies and confusion. Here we systematically evaluated all human sequences related to GGT1 using genomic and cDNA database searches and identified thirteen genes belonging to the extended GGT family, of which at least six appear to be active. In collaboration with the HUGO Gene Nomenclature Committee (HGNC) we have designated possible active genes with nucleotide or amino acid sequence similarity to GGT1, as GGT5 (formerly GGL, GGTLA1/GGT-rel), GGT6 (formerly rat ggt6 homologue) and GGT7 (formerly GGTL3, GGT4). Two loci have the potential to encode only the light chain portion of GGT and have now been designated GGTLC1 (formerly GGTL6, GGTLA4) and GGTLC2. Of the five full-length genes, three lack of significant nucleotide sequence homology but have significant (GGT5, GGT7) or very limited (GGT6) amino acid similarity to GGT1 and belong to separate families. GGT6 and GGT7 have not yet been described, raising the possibility that leukotriene synthesis, glutathione metabolism or gamma-glutamyl transfer is regulated by their, as of yet uncharacterized, enzymatic activities. In view of the widespread clinical use of assays that measure gamma-glutamyl transfer activity, this would appear to be of significant interest.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.