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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Xisttm2.1Jae
targeted mutation 2.1, Rudolf Jaenisch
MGI:2445460
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Xisttm2.1Jae/Xist+ involves: 129 MGI:3719989
ht2
Xisttm1Jae/Xisttm2.1Jae involves: 129S4/SvJae MGI:3772897
ot3
Xisttm2.1Jae/Y Not Specified MGI:3719991


Genotype
MGI:3719989
ht1
Allelic
Composition
Xisttm2.1Jae/Xist+
Genetic
Background
involves: 129
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Xisttm2.1Jae mutation (0 available); any Xist mutation (8 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• E7.0 embryos exhibit selective inactivation of the wild-type allele instead of the random inactivation observed in wild-type embryos

embryo
• when the allele is inherited paternally, female mice exhibit severe developmental defect at E7.5 compared with control mice

growth/size/body
• when the allele is inherited paternally, female mice exhibit severe developmental defect at E7.5 compared with control mice




Genotype
MGI:3772897
ht2
Allelic
Composition
Xisttm1Jae/Xisttm2.1Jae
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Xisttm1Jae mutation (0 available); any Xist mutation (8 available)
Xisttm2.1Jae mutation (0 available); any Xist mutation (8 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mouse embryonic fibroblasts exhibit normal X chromosome inactivation




Genotype
MGI:3719991
ot3
Allelic
Composition
Xisttm2.1Jae/Y
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Xisttm2.1Jae mutation (0 available); any Xist mutation (8 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• formation of sex bodies and meiotic sex chromosome inactivation in spermatocytes is normal





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last database update
11/19/2024
MGI 6.24
The Jackson Laboratory