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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Foxn1tm1Tbo
targeted mutation 1, Thomas Boehm
MGI:1926361
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Foxn1tm1Tbo/Foxn1tm1Tbo involves: 129S1/Sv MGI:2175031
ht2
Foxn1tm1.1Cbln/Foxn1tm1Tbo involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6 MGI:5297815
ht3
Foxn1nu-StL/Foxn1tm1Tbo involves: 129S1/Sv * C57BL/6 MGI:3722653
cn4
Foxn1tm1.1Cbln/Foxn1tm1Tbo
Gt(ROSA)26Sortm2(cre/ERT2)Brn/Gt(ROSA)26Sor+
involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6 MGI:5297816


Genotype
MGI:2175031
hm1
Allelic
Composition
Foxn1tm1Tbo/Foxn1tm1Tbo
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Foxn1tm1Tbo mutation (0 available); any Foxn1 mutation (106 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• thymic rudiment in the mediastinum above the heart
• thymic medullary epithelium primordia present at E13.5 and E15.5 but later development is blocked
• cortical epithelial primordia do not develop
• 2 fold increase in splenic B cells but meseteric lymph node frequency remains unchanged
• complete absence of alpha/beta T-cells

hematopoietic system
• thymic rudiment in the mediastinum above the heart
• thymic medullary epithelium primordia present at E13.5 and E15.5 but later development is blocked
• cortical epithelial primordia do not develop
• 2 fold increase in splenic B cells but meseteric lymph node frequency remains unchanged
• complete absence of alpha/beta T-cells

integument
• loss of expression of some but not all hair keratin genes

endocrine/exocrine glands
• thymic rudiment in the mediastinum above the heart
• thymic medullary epithelium primordia present at E13.5 and E15.5 but later development is blocked
• cortical epithelial primordia do not develop




Genotype
MGI:5297815
ht2
Allelic
Composition
Foxn1tm1.1Cbln/Foxn1tm1Tbo
Genetic
Background
involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Foxn1tm1.1Cbln mutation (0 available); any Foxn1 mutation (106 available)
Foxn1tm1Tbo mutation (0 available); any Foxn1 mutation (106 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• small alymphatic thymic rudiments
• devoid of cortical or medullary organization
• no hematopoietic colonization of the thymus
• lack peripheral T cells

hematopoietic system
• small alymphatic thymic rudiments
• devoid of cortical or medullary organization
• no hematopoietic colonization of the thymus
• lack peripheral T cells

integument
• sporadic hair loss after 6 weeks of age
• overtly normal hair up to 6 weeks of age

endocrine/exocrine glands
• small alymphatic thymic rudiments
• devoid of cortical or medullary organization
• no hematopoietic colonization of the thymus




Genotype
MGI:3722653
ht3
Allelic
Composition
Foxn1nu-StL/Foxn1tm1Tbo
Genetic
Background
involves: 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Foxn1nu-StL mutation (0 available); any Foxn1 mutation (106 available)
Foxn1tm1Tbo mutation (0 available); any Foxn1 mutation (106 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• thymic rudiment is composed of a patch of epithelial cells lining cysts with a complete absence of hematopoietic cells

hematopoietic system
• thymic rudiment is composed of a patch of epithelial cells lining cysts with a complete absence of hematopoietic cells

endocrine/exocrine glands
• thymic rudiment is composed of a patch of epithelial cells lining cysts with a complete absence of hematopoietic cells




Genotype
MGI:5297816
cn4
Allelic
Composition
Foxn1tm1.1Cbln/Foxn1tm1Tbo
Gt(ROSA)26Sortm2(cre/ERT2)Brn/Gt(ROSA)26Sor+
Genetic
Background
involves: 129P2/OlaHsd * 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Foxn1tm1.1Cbln mutation (0 available); any Foxn1 mutation (106 available)
Foxn1tm1Tbo mutation (0 available); any Foxn1 mutation (106 available)
Gt(ROSA)26Sortm2(cre/ERT2)Brn mutation (1 available); any Gt(ROSA)26Sor mutation (993 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• restoration of normal thymus if cre induction with tamoxiphen occurs before 4 months of age





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