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| Home > Publications Database > Expression of a Catalytically Inactive Mutant Form of Glutathione Peroxidase 4 (Gpx4) Confers a Dominant-negative Effect in Male Fertility. > print |
| 001 | 137962 | ||
| 005 | 20240321220339.0 | ||
| 024 | 7 | _ | |a 10.1074/jbc.M115.656363 |2 doi |
| 024 | 7 | _ | |a pmid:25922076 |2 pmid |
| 024 | 7 | _ | |a pmc:PMC4505533 |2 pmc |
| 024 | 7 | _ | |a 0021-9258 |2 ISSN |
| 024 | 7 | _ | |a 1067-8816 |2 ISSN |
| 024 | 7 | _ | |a 1083-351X |2 ISSN |
| 037 | _ | _ | |a DZNE-2020-04284 |
| 041 | _ | _ | |a English |
| 082 | _ | _ | |a 540 |
| 100 | 1 | _ | |a Ingold, Irina |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Expression of a Catalytically Inactive Mutant Form of Glutathione Peroxidase 4 (Gpx4) Confers a Dominant-negative Effect in Male Fertility. |
| 260 | _ | _ | |a Bethesda, Md. |c 2015 |b Soc.60645 |
| 264 | _ | 1 | |3 online |2 Crossref |b American Society for Biochemistry & Molecular Biology (ASBMB) |c 2015-04-28 |
| 264 | _ | 1 | |3 print |2 Crossref |b American Society for Biochemistry & Molecular Biology (ASBMB) |c 2015-06-05 |
| 336 | 7 | _ | |a article |2 DRIVER |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1587122112_28677 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a The selenoenzyme Gpx4 is essential for early embryogenesis and cell viability for its unique function to prevent phospholipid oxidation. Recently, the cytosolic form of Gpx4 was identified as an upstream regulator of a novel form of non-apoptotic cell death, called ferroptosis, whereas the mitochondrial isoform of Gpx4 was previously shown to be crucial for male fertility. Here, we generated and analyzed mice with a targeted mutation of the active site selenocysteine of Gpx4 (Gpx4_U46S). Mice homozygous for Gpx4_U46S died at the same embryonic stage (E7.5) as Gpx4(-/-) embryos as expected. Surprisingly, male mice heterozygous for Gpx4_U46S presented subfertility. Subfertility was manifested in a reduced number of litters from heterozygous breeding and an impairment of spermatozoa to fertilize oocytes in vitro. Morphologically, sperm isolated from heterozygous Gpx4_U46S mice revealed many structural abnormalities particularly in the spermatozoa midpiece due to improper oxidation and polymerization of sperm capsular proteins and malformation of the mitochondrial capsule surrounding and stabilizing sperm mitochondria. These findings are reminiscent of sperm isolated from selenium-deprived rodents or from mice specifically lacking mitochondrial Gpx4. Due to a strongly facilitated incorporation of Ser in the polypeptide chain as compared with selenocysteine at the UGA codon, expression of the catalytically inactive Gpx4_U46S was found to be strongly increased. Because the stability of the mitochondrial capsule of mature spermatozoa depends on the moonlighting function of Gpx4 both as an enzyme oxidizing capsular protein thiols and as a structural protein, tightly controlled expression of functional Gpx4 emerges as a key for full male fertility. |
| 536 | _ | _ | |a 342 - Disease Mechanisms and Model Systems (POF3-342) |0 G:(DE-HGF)POF3-342 |c POF3-342 |f POF III |x 0 |
| 588 | _ | _ | |a Dataset connected to CrossRef, PubMed, |
| 650 | _ | 7 | |a Selenocysteine |0 0CH9049VIS |2 NLM Chemicals |
| 650 | _ | 7 | |a Serine |0 452VLY9402 |2 NLM Chemicals |
| 650 | _ | 7 | |a Phospholipid Hydroperoxide Glutathione Peroxidase |0 EC 1.11.1.12 |2 NLM Chemicals |
| 650 | _ | 7 | |a Glutathione Peroxidase |0 EC 1.11.1.9 |2 NLM Chemicals |
| 650 | _ | 2 | |a Amino Acid Substitution |2 MeSH |
| 650 | _ | 2 | |a Animals |2 MeSH |
| 650 | _ | 2 | |a Catalytic Domain |2 MeSH |
| 650 | _ | 2 | |a Cells, Cultured |2 MeSH |
| 650 | _ | 2 | |a Embryo Loss: genetics |2 MeSH |
| 650 | _ | 2 | |a Embryo Loss: metabolism |2 MeSH |
| 650 | _ | 2 | |a Embryo Loss: pathology |2 MeSH |
| 650 | _ | 2 | |a Female |2 MeSH |
| 650 | _ | 2 | |a Glutathione Peroxidase: genetics |2 MeSH |
| 650 | _ | 2 | |a Glutathione Peroxidase: metabolism |2 MeSH |
| 650 | _ | 2 | |a Heterozygote |2 MeSH |
| 650 | _ | 2 | |a Homozygote |2 MeSH |
| 650 | _ | 2 | |a Infertility, Male: genetics |2 MeSH |
| 650 | _ | 2 | |a Infertility, Male: metabolism |2 MeSH |
| 650 | _ | 2 | |a Infertility, Male: pathology |2 MeSH |
| 650 | _ | 2 | |a Male |2 MeSH |
| 650 | _ | 2 | |a Mice |2 MeSH |
| 650 | _ | 2 | |a Mice, Transgenic |2 MeSH |
| 650 | _ | 2 | |a Phospholipid Hydroperoxide Glutathione Peroxidase |2 MeSH |
| 650 | _ | 2 | |a Selenocysteine: genetics |2 MeSH |
| 650 | _ | 2 | |a Serine: genetics |2 MeSH |
| 650 | _ | 2 | |a Spermatogenesis |2 MeSH |
| 650 | _ | 2 | |a Spermatozoa: metabolism |2 MeSH |
| 650 | _ | 2 | |a Spermatozoa: pathology |2 MeSH |
| 650 | _ | 2 | |a Spermatozoa: ultrastructure |2 MeSH |
| 700 | 1 | _ | |a Aichler, Michaela |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Yefremova, Elena |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Roveri, Antonella |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Buday, Katalin |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Doll, Sebastian |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Tasdemir, Adrianne |0 P:(DE-HGF)0 |b 6 |
| 700 | 1 | _ | |a Hoffard, Nils |0 P:(DE-HGF)0 |b 7 |
| 700 | 1 | _ | |a Wurst, Wolfgang |0 P:(DE-2719)2000028 |b 8 |u dzne |
| 700 | 1 | _ | |a Walch, Axel |0 P:(DE-HGF)0 |b 9 |
| 700 | 1 | _ | |a Ursini, Fulvio |0 P:(DE-HGF)0 |b 10 |
| 700 | 1 | _ | |a Friedmann Angeli, José Pedro |0 P:(DE-HGF)0 |b 11 |
| 700 | 1 | _ | |a Conrad, Marcus |0 P:(DE-HGF)0 |b 12 |e Corresponding author |
| 773 | 1 | 8 | |a 10.1074/jbc.m115.656363 |b : American Society for Biochemistry & Molecular Biology (ASBMB), 2015-04-28 |n 23 |p 14668-14678 |3 journal-article |2 Crossref |t Journal of Biological Chemistry |v 290 |y 2015 |x 0021-9258 |
| 773 | _ | _ | |a 10.1074/jbc.M115.656363 |g Vol. 290, no. 23, p. 14668 - 14678 |0 PERI:(DE-600)1474604-9 |n 23 |q 290:23<14668 - 14678 |p 14668-14678 |t The journal of biological chemistry |v 290 |y 2015 |x 0021-9258 |
| 856 | 7 | _ | |2 Pubmed Central |u http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4505533 |
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