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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
KitlSl-17H
steel 17 Harwell
MGI:1857739
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
KitlSl-17H/KitlSl-17H C3H/HeH-KitlSl-17H MGI:3054426
ht2
KitlSl-17H/Kitl+ C3H/HeH-KitlSl-17H MGI:3054440
ht3
KitlSl-17H/KitlSl-con involves: C3H/HeH MGI:3054452


Genotype
MGI:3054426
hm1
Allelic
Composition
KitlSl-17H/KitlSl-17H
Genetic
Background
C3H/HeH-KitlSl-17H
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitlSl-17H mutation (0 available); any Kitl mutation (94 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• white coat with some dark pigmentation on the ears and occasional pigmented spot on the rump

reproductive system
• at P12, mutant ovaries contain significantly fewer oocytes than wild-type ovaries
• at P12, homozygotes show a 6- to 8-fold reduction in the number of primordial (resting) and growing oocytes relative to wild-type controls
• at 7 months of age, no oocytes or follicular tissue are observed
• at P12, mutant seminiferous tubules contain fewer and less differentiated germ cells than wild-type tubules
• by 5 weeks of age, mutant tubules contain only a few germ cells and show virtual cessation of spermatogenesis
• at E11.5 and E12.5, PGC numbers are reduced to 18-24% and ~6%, respectively, of those in wild-type controls; both sexes are equally affected (J:2880)
• unlike in wild-type controls, PGC numbers are decreased from E11.5 to E12.5, suggesting that both PGC survival and/or proliferation may be impaired (J:2880)
• moderate numbers of primordial germ cells (PGCs) are seen in genital ridges relative to wild-type and KitlSl-gb homozygotes at E11.5 (J:115437)
• at P12, mutant ovaries are significantly smaller than wild-type
• hyperplasia of the interstitial cells is observed at 5 weeks of age
• delayed onset and reduction in numbers of germ cells
• depletion of differentiating germ cells by 8 weeks of age
• male, but not female, homozygotes are sterile

endocrine/exocrine glands
• at P12, mutant ovaries are significantly smaller than wild-type
• hyperplasia of the interstitial cells is observed at 5 weeks of age

neoplasm
• at 7 months of age, mutant ovaries exhibit large invaginations of the surface epithelium, an extensive network of complex tubular adenoma and fat infiltration

integument
• white coat with some dark pigmentation on the ears and occasional pigmented spot on the rump

cellular
• at P12, mutant ovaries contain significantly fewer oocytes than wild-type ovaries
• at P12, homozygotes show a 6- to 8-fold reduction in the number of primordial (resting) and growing oocytes relative to wild-type controls
• at 7 months of age, no oocytes or follicular tissue are observed
• at P12, mutant seminiferous tubules contain fewer and less differentiated germ cells than wild-type tubules
• by 5 weeks of age, mutant tubules contain only a few germ cells and show virtual cessation of spermatogenesis
• at E11.5 and E12.5, PGC numbers are reduced to 18-24% and ~6%, respectively, of those in wild-type controls; both sexes are equally affected (J:2880)
• unlike in wild-type controls, PGC numbers are decreased from E11.5 to E12.5, suggesting that both PGC survival and/or proliferation may be impaired (J:2880)
• moderate numbers of primordial germ cells (PGCs) are seen in genital ridges relative to wild-type and KitlSl-gb homozygotes at E11.5 (J:115437)




Genotype
MGI:3054440
ht2
Allelic
Composition
KitlSl-17H/Kitl+
Genetic
Background
C3H/HeH-KitlSl-17H
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitlSl-17H mutation (0 available); any Kitl mutation (94 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• unlike many other Kitl alleles, the coat of this genotype is only rarely lighter than wild-type
• small pigmented areas occasionally on hips and base of shoulders
• on tail and/or feet
• occasional
• occasional

reproductive system
• at E11.5, PGC numbers are reduced to ~64-66% of wild-type levels; both sexes are equally affected
• in two E12.5 female heterozygotes, PGC numbers are reduced to ~46% of wild-type levels

integument
• unlike many other Kitl alleles, the coat of this genotype is only rarely lighter than wild-type
• small pigmented areas occasionally on hips and base of shoulders
• on tail and/or feet
• occasional
• occasional

cellular
• at E11.5, PGC numbers are reduced to ~64-66% of wild-type levels; both sexes are equally affected
• in two E12.5 female heterozygotes, PGC numbers are reduced to ~46% of wild-type levels




Genotype
MGI:3054452
ht3
Allelic
Composition
KitlSl-17H/KitlSl-con
Genetic
Background
involves: C3H/HeH
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitlSl-17H mutation (0 available); any Kitl mutation (94 available)
KitlSl-con mutation (1 available); any Kitl mutation (94 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• genital papilla remain black
• on tail and head

integument
• genital papilla remain black
• on tail and head





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory