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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Gpx4tm2Marc
targeted mutation 2, Marcus Conrad
MGI:3810783
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Gpx4tm2Marc/Gpx4tm2Marc
Gt(ROSA)26Sortm2(cre/ERT2)Brn/0
involves: 129P2/OlaHsd MGI:8350573
cn2
Gpx4em1Marc/Gpx4tm2Marc
Gt(ROSA)26Sortm2(cre/ERT2)Brn/0
involves: 129P2/OlaHsd * C57BL/6J MGI:8350568
cn3
Gpx4em1Marc/Gpx4tm2Marc
Tg(Camk2a-cre/ERT2)2Gsc/0
involves: 129P2/OlaHsd * C57BL/6J * FVB/N MGI:8350560
cn4
Gpx4tm2Marc/Gpx4tm2Marc
Tg(Camk2a-cre)2Gsc/0
involves: 129P2/OlaHsd * FVB/N MGI:7528942
cn5
Gpx4tm2Marc/Gpx4tm2Marc
Tg(Camk2a-cre/ERT2)2Gsc/0
involves: 129P2/OlaHsd * FVB/N MGI:8350567
cn6
Gpx4tm2Marc/Gpx4tm2Marc
Tg(Pcp2-cre)2Mpin/0
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J MGI:8350576


Genotype
MGI:8350573
cn1
Allelic
Composition
Gpx4tm2Marc/Gpx4tm2Marc
Gt(ROSA)26Sortm2(cre/ERT2)Brn/0
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gpx4tm2Marc mutation (0 available); any Gpx4 mutation (80 available)
Gt(ROSA)26Sortm2(cre/ERT2)Brn mutation (1 available); any Gt(ROSA)26Sor mutation (1211 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• renal proximal tubule epithelia cell death by ferroptosis after tamoxifen administration

growth/size/body
• owing to acute kidney failure after tamoxifen administration

homeostasis/metabolism
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration

mortality/aging
• acute kidney failure leads to death 10-12 after tamoxifen administration

renal/urinary system
• renal proximal tubule epithelia cell death by ferroptosis after tamoxifen administration




Genotype
MGI:8350568
cn2
Allelic
Composition
Gpx4em1Marc/Gpx4tm2Marc
Gt(ROSA)26Sortm2(cre/ERT2)Brn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gpx4em1Marc mutation (0 available); any Gpx4 mutation (80 available)
Gpx4tm2Marc mutation (0 available); any Gpx4 mutation (80 available)
Gt(ROSA)26Sortm2(cre/ERT2)Brn mutation (1 available); any Gt(ROSA)26Sor mutation (1211 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• renal proximal tubule epithelia cell death by ferroptosis after tamoxifen administration

growth/size/body
• owing to acute kidney failure after tamoxifen administration

homeostasis/metabolism
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration
• after tamoxifen administration

mortality/aging
• acute kidney failure leads to death 10-12 after tamoxifen administration

renal/urinary system
• renal proximal tubule epithelia cell death by ferroptosis after tamoxifen administration




Genotype
MGI:8350560
cn3
Allelic
Composition
Gpx4em1Marc/Gpx4tm2Marc
Tg(Camk2a-cre/ERT2)2Gsc/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gpx4em1Marc mutation (0 available); any Gpx4 mutation (80 available)
Gpx4tm2Marc mutation (0 available); any Gpx4 mutation (80 available)
Tg(Camk2a-cre/ERT2)2Gsc mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• after tamoxifen administration
• after tamoxifen administration

cellular
• cerebral cortex degeneration caused by ferroptosis of neurons

nervous system
• atrophy after tamoxifen administration
• disorganized after tamoxifen administration
• atrophy after tamoxifen administration




Genotype
MGI:7528942
cn4
Allelic
Composition
Gpx4tm2Marc/Gpx4tm2Marc
Tg(Camk2a-cre)2Gsc/0
Genetic
Background
involves: 129P2/OlaHsd * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gpx4tm2Marc mutation (0 available); any Gpx4 mutation (80 available)
Tg(Camk2a-cre)2Gsc mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice were euthanized at 13 days of age due to no weight gain and seizures

nervous system
• 12 day old pups suffer seizures when touched by littermates
• astrogliosis occurs in the somatosensory cortex and the CA3 region of the hippocampus of 13-day old mice
• E15.5 cortical neurons cultured in vitro die within 7 days of withdrawal of the anti-oxidant alpha-tocopherol
• this cell death occurs by a poorly defined death pathway involving the protein Aifm1
• damaged and pyknotic cells in the pyramidal layer of the CA3 region are found in mice 13 days of age
• parvalbumin-positive cells were largely lost from CA3 region due to apoptosis
• astrogliosis, apoptosis, and loss of parvalbumin-expressing cells occur in the somatosensory cortex of 13 day old mice

growth/size/body
• mice cease weight gain starting at 8 days of age until being euthanized at 13 days of age

behavior/neurological
• is apparent at 10 days of age
• mice consistently bury themselves vertically in cage bedding
• 12 day old pups suffer seizures when touched by littermates

cellular
• astrogliosis occurs in the somatosensory cortex and the CA3 region of the hippocampus of 13-day old mice
• E15.5 cortical neurons cultured in vitro die within 7 days of withdrawal of the anti-oxidant alpha-tocopherol
• this cell death occurs by a poorly defined death pathway involving the protein Aifm1




Genotype
MGI:8350567
cn5
Allelic
Composition
Gpx4tm2Marc/Gpx4tm2Marc
Tg(Camk2a-cre/ERT2)2Gsc/0
Genetic
Background
involves: 129P2/OlaHsd * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gpx4tm2Marc mutation (0 available); any Gpx4 mutation (80 available)
Tg(Camk2a-cre/ERT2)2Gsc mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• after tamoxifen administration
• after tamoxifen administration

cellular
• in cerebral cortex from 1 week after tamoxifen administration
• in cerebral cortex from 2 weeks after tamoxifen administration
• cerebral cortex degeneration caused by ferroptosis of neurons

hematopoietic system
• in cerebral cortex from 2 weeks after tamoxifen administration

immune system
• in cerebral cortex from 2 weeks after tamoxifen administration

nervous system
• in cerebral cortex from 1 week after tamoxifen administration
• in cerebral cortex from 2 weeks after tamoxifen administration
• atrophy after tamoxifen administration
• disorganized after tamoxifen administration
• atrophy after tamoxifen administration




Genotype
MGI:8350576
cn6
Allelic
Composition
Gpx4tm2Marc/Gpx4tm2Marc
Tg(Pcp2-cre)2Mpin/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gpx4tm2Marc mutation (0 available); any Gpx4 mutation (80 available)
Tg(Pcp2-cre)2Mpin mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• from age 6 weeks

cellular
• from age 6 weeks
• from age 6 weeks

embryo
N
• mice born at expected Mendelian ratios

hematopoietic system
• from age 6 weeks

immune system
• from age 6 weeks

nervous system
• from age 6 weeks
• from age 6 weeks
• near absence of calbindin+ Purkinje neurons from age 6 weeks





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last database update
06/16/2026
MGI 6.24
The Jackson Laboratory