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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Foxn1nu-StL
St Louis
MGI:1929717
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Foxn1nu-StL/Foxn1nu-StL involves: C57BL/6 MGI:2175028
ht2
 		Foxn1nu-StL/Foxn1tm1Tbo involves: 129S1/Sv * C57BL/6 MGI:3722653


Genotype
MGI:2175028
hm1
Allelic
Composition		 Foxn1nu-StL/Foxn1nu-StL
Genetic
Background		 involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Foxn1nu-StL mutation (0 available); any Foxn1 mutation (104 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
immune system
athymia ( J:63313 )
• athymic
absent T cells ( J:63313 )
• virtual absence of peripheral T cells

hematopoietic system
athymia ( J:63313 )
• athymic
absent T cells ( J:63313 )
• virtual absence of peripheral T cells

integument

endocrine/exocrine glands
athymia ( J:63313 )
• athymic




Genotype
MGI:3722653
ht2
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 (104 available)
Foxn1tm1Tbo mutation (0 available); any Foxn1 mutation (104 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
immune system
abnormal thymus development ( J:63313 )
• thymic rudiment is composed of a patch of epithelial cells lining cysts with a complete absence of hematopoietic cells

hematopoietic system
abnormal thymus development ( J:63313 )
• thymic rudiment is composed of a patch of epithelial cells lining cysts with a complete absence of hematopoietic cells

endocrine/exocrine glands
abnormal thymus development ( J:63313 )
• thymic rudiment is composed of a patch of epithelial cells lining cysts with a complete absence of hematopoietic cells




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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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Send questions and comments to User Support. 		last database update
09/30/2025
MGI 6.24 		The Jackson Laboratory