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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rxrapke
pinkie
MGI:3612274
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Rxrapke/Rxrapke C57BL/6J-Rxrapke MGI:3612280


Genotype
MGI:3612280
hm1
Allelic
Composition
Rxrapke/Rxrapke
Genetic
Background
C57BL/6J-Rxrapke
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rxrapke mutation (1 available); any Rxra mutation (30 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• the fur of homozygous mutants grays prematurely, beginning on the snout as early as 5 weeks of age, then spreading to the trunk

skeleton
• some mutants develop kyphosis by 1 year of age

vision/eye
• with age, the eyes of homozygous mice develop a "dry" appearance and corneal opacity

hematopoietic system
• mutant mice exhibit a more pronounced reduction with age in Th2-associated antigen-specific IgG1 production following intraperitoneal immunization with ovalbumin plus alum than do control mice
• under culture conditions favoring exclusive Th1 or mixed Th1/Th2 differentiation, purified naive mutant CD4+ T cells showed a much stronger Th1 bias than did those from control mice (IFNgamma+:IL4+ ratio = 309 versus 108, respectively), although under conditions favoring exclusive Th2 differentiation, the response of the mutant cells did not differ from that of wild-type cells
• regulatory CD4+/CD25+ T cells (Treg) from mutant mice consistently permit greater proliferation of naive CD4+ T cells than do Treg from control mice, particularly and significantly when Treg from older mice are compared

immune system
• mutant mice exhibit a more pronounced reduction with age in Th2-associated antigen-specific IgG1 production following intraperitoneal immunization with ovalbumin plus alum than do control mice
• under culture conditions favoring exclusive Th1 or mixed Th1/Th2 differentiation, purified naive mutant CD4+ T cells showed a much stronger Th1 bias than did those from control mice (IFNgamma+:IL4+ ratio = 309 versus 108, respectively), although under conditions favoring exclusive Th2 differentiation, the response of the mutant cells did not differ from that of wild-type cells
• regulatory CD4+/CD25+ T cells (Treg) from mutant mice consistently permit greater proliferation of naive CD4+ T cells than do Treg from control mice, particularly and significantly when Treg from older mice are compared
• mutant dendritic cells consistently produce higher levels of IL-12 without stimulation, and significantly higher levels during 24 hours' stimulation with bacterial lipopolysaccharide (LPS) than do wild-type DC, despite secreting similar levles of IL-10

integument
• homozygous mutants develop acne-like cysts beneath the ventral skin, which progressively become larger and more numerous; these first appear at about 8 weeks of age in females, who are generally affected earlier and more severely than males
• the fur of homozygous mutants grays prematurely, beginning on the snout as early as 5 weeks of age, then spreading to the trunk
• hair loss begins on the caudal ventrum, then spreads to the lower back, and by 4 months of age homozygous mutant mice are hairless

growth/size/body
• homozygous mutants develop acne-like cysts beneath the ventral skin, which progressively become larger and more numerous; these first appear at about 8 weeks of age in females, who are generally affected earlier and more severely than males





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