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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Txnrd1tm1Marc
targeted mutation 1, Marcus Conrad
MGI:3574358
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Txnrd1tm1Marc/Txnrd1tm1Marc
Tg(Tuba1-cre)1Tes/0
involves: 129P2/OlaHsd MGI:3778636
cn2
Txnrd1tm1Marc/Txnrd1tm1Marc
Tg(Nes-cre)1Kln/0
involves: 129P2/OlaHsd * C57BL/6 * SJL MGI:3778634
cn3
Myl2tm1(cre)Krc/Myl2+
Txnrd1tm1Marc/Txnrd1tm1.1Marc
involves: 129P2/OlaHsd * C57BL/6J MGI:3574776


Genotype
MGI:3778636
cn1
Allelic
Composition
Txnrd1tm1Marc/Txnrd1tm1Marc
Tg(Tuba1-cre)1Tes/0
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(Tuba1-cre)1Tes mutation (0 available)
Txnrd1tm1Marc mutation (1 available); any Txnrd1 mutation (49 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• cerebellar foliation is normal

behavior/neurological
N
• mice exhibit normal behavior

growth/size/body
N
• mice exhibit normal growth




Genotype
MGI:3778634
cn2
Allelic
Composition
Txnrd1tm1Marc/Txnrd1tm1Marc
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(Nes-cre)1Kln mutation (4 available)
Txnrd1tm1Marc mutation (1 available); any Txnrd1 mutation (49 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• most regions of the brain including the olfactory bulb, subventricular zone and cerebral cortex are morphologically normal
• fissure formation in the anterior cerebellum is reduced
• only lobules VII to X form, while lobules I to VI are fused and unlaminated
• there is no distinction between the molecular, Purkinje cell and granular layers in the anterior portions of the cerebellar cortex
• however, lamination of the posterior cerebellar cortex is normal
• the dendritic trees of Purkinje cells, in the anterior more so than the posterior cerebellum, are less elaborate than in wild-type mice
• at weaning the cerebellum is one fourth of wild-type in size
• cell proliferation is 3 times lower than normal at P7 and 2 times lower than normal at P14
• cell density in the granular layer in the anterior end is reduced the posterior lobules are smaller
• however, apoptotic rates are normal
• glial cells in the anterior cerebellum are disoriented
• Bergmann glial fibers in the anterior cerebellum are shorter, disoriented and reduced in density compared to in wild-type mice

behavior/neurological
• at P7
• at P7, mice exhibit an ataxic gait
• 11 of 14 times mice fail to climb down a pole in a modified pole test unlike wild-type mice
• at P7, mice exhibit an ataxic gait

growth/size/body
• although of normal size at birth, within a few days mice are smaller than wild-type mice
• by 4 weeks of age mice have only reached half the weight of wild-type mice
• mice only grow to adulthood when provided food pellets at the bottom of the cage

reproductive system
N
• mice are fertile and able to nurse




Genotype
MGI:3574776
cn3
Allelic
Composition
Myl2tm1(cre)Krc/Myl2+
Txnrd1tm1Marc/Txnrd1tm1.1Marc
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myl2tm1(cre)Krc mutation (2 available); any Myl2 mutation (22 available)
Txnrd1tm1.1Marc mutation (0 available); any Txnrd1 mutation (49 available)
Txnrd1tm1Marc mutation (1 available); any Txnrd1 mutation (49 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
N
• no differences in heart shape or in the cellular morphology of cardiomyocytes





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory