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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
KitW
dominant spotting
MGI:1856232
Summary 28 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
KitW/KitW B6.Cg-KitW/J MGI:5912375
hm2
KitW/KitW Not Specified MGI:2169625
ht3
KitW/Kit+ FL/1Re-KitW/J MGI:4849374
ht4
KitW/Kit+ Not Specified MGI:2175088
ht5
Kittm3.1Bsm/KitW involves: 129S1/Sv * C57BL/6 MGI:4358486
ht6
Kittm1.1Bsm/KitW involves: 129S1/Sv * C57BL/6 MGI:4358485
ht7
KitW-s/KitW involves: BRS MGI:3813892
ht8
KitW/KitW-v involves: C57BL MGI:2684689
ht9
KitW/KitW-v involves: C57BL/6 MGI:5307249
ht10
KitW-42J/KitW involves: C57BL/6 * C57BL/6J * WB MGI:3813817
ht11
KitW-37J/KitW involves: C57BL/6 * C57BL/6J * WB MGI:3813819
ht12
KitW/KitW-v involves: C57BL/6J MGI:3771729
ht13
KitW-39J/KitW involves: C57BL/6J MGI:3813694
ht14
KitW/KitW-v involves: C57BL/6 * WB MGI:2387552
ht15
KitW-Jic/KitW involves: C57BL/6 * WB MGI:3813815
ht16
KitW/KitW-v involves: C57BL * C57BL/6 * WB MGI:3813557
ht17
KitW-n/KitW involves: WB MGI:3813821
ht18
KitW/KitW-v Not Specified MGI:2171276
ht19
KitW/KitW-v (WB KitW x B6.Cg-KitW-v)F1 MGI:5307250
ht20
KitW/KitW-v (WB/ReJ x C57BL/6J-KitW-v/J)F1-KitW/KitW-v/J MGI:3665485
cx21
f/f+
KitW/Kit+
FL/1Re-KitW/J MGI:4849373
cx22
f/f
KitW/Kit+
FL/1Re-KitW/J MGI:4849372
cx23
Il3tm1Glli/Il3tm1Glli
KitW/KitW-v
involves: 129S2/SvPas * C57BL/6 * WB MGI:3586341
cx24
Flt3tm1Irl/Flt3tm1Irl
KitW/KitW-v
involves: 129S/SvEv * C57BL/6 MGI:3663023
cx25
KitW/KitW
Tg(PDGFB-EPO)321Zbz/?
involves: C3H * C57BL/6 MGI:3714525
cx26
KitW/Kit+
Tg(PGK1-KITLG*220)441Daw/0
involves: C3H/HeJ MGI:3817635
cx27
Fbn1Tsk/Fbn1+
KitW/Kit+
involves: C57BL/6 * C57BL/10 * DBA/2 * WB/ReJ MGI:3619906
cx28
Fbn1Tsk/Fbn1+
KitW/KitW-v
involves: C57BL/6 * C57BL/10 * DBA/2 * WB/ReJ MGI:3619905


Genotype
MGI:5912375
hm1
Allelic
Composition
KitW/KitW
Genetic
Background
B6.Cg-KitW/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• weights are normal at embryonic day 16 but by birth the body weight is retarded behind that of wildtype siblings

hematopoietic system
• identified as early as embryonic day 16, the earliest timepoint assessed, and the severity is greatest in W/W homozygotes compared with homozygotes for the viable dominant spotting allele or compound heterozgyotes

mortality/aging
• heterozygous intercrosses produce only 14.5% homozygotes instead of the 25% expected, one sixth of which are born dead or die perinatally and nearly all the remainder die by 3 days of age, without postnatal growth

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
macrocytic anemia DOID:2361 J:243758




Genotype
MGI:2169625
hm2
Allelic
Composition
KitW/KitW
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• death is within the first week of birth

hematopoietic system
• macrocytic anemia begins at 12 days gestation leading to death within the first week of birth

pigmentation
• white coat color, vividly contrasts with normal black eye color
• pigment is restricted to retina

vision/eye
• pigment is restricted to retina

integument
• white coat color, vividly contrasts with normal black eye color




Genotype
MGI:4849374
ht3
Allelic
Composition
KitW/Kit+
Genetic
Background
FL/1Re-KitW/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• elevated from birth onward
• slightly elevated from birth onward




Genotype
MGI:2175088
ht4
Allelic
Composition
KitW/Kit+
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• pigmented areas of the coat may be interspersed with white hairs producing a roan appearance pigmented coat may be interspersed with white hairs creating a roan appearance pigmented areas are interspersed with white hairs producing a roan appearance
• Background Sensitivity: variable amounts of white spotting

hematopoietic system
N
• blood parameters are normal

reproductive system
N
• system is normal

integument
• pigmented areas of the coat may be interspersed with white hairs producing a roan appearance pigmented coat may be interspersed with white hairs creating a roan appearance pigmented areas are interspersed with white hairs producing a roan appearance
• Background Sensitivity: variable amounts of white spotting




Genotype
MGI:4358486
ht5
Allelic
Composition
Kittm3.1Bsm/KitW
Genetic
Background
involves: 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kittm3.1Bsm mutation (0 available); any Kit mutation (182 available)
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• ventral depigmentation is enhanced compared to in KitW heterozygotes

integument
• ventral depigmentation is enhanced compared to in KitW heterozygotes




Genotype
MGI:4358485
ht6
Allelic
Composition
Kittm1.1Bsm/KitW
Genetic
Background
involves: 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kittm1.1Bsm mutation (0 available); any Kit mutation (182 available)
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• dorsal depigmentation is worse than in KitW heterozygotes

integument
• dorsal depigmentation is worse than in KitW heterozygotes




Genotype
MGI:3813892
ht7
Allelic
Composition
KitW-s/KitW
Genetic
Background
involves: BRS
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-s mutation (0 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging




Genotype
MGI:2684689
ht8
Allelic
Composition
KitW/KitW-v
Genetic
Background
involves: C57BL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular

digestive/alimentary system
• absence of intramuscular interstitial cells of Cajal from the lower esophageal sphincter
• the mean resting lower esophageal sphincter pressure is significantly lower

muscle
• the mean resting lower esophageal sphincter pressure is significantly lower

reproductive system




Genotype
MGI:5307249
ht9
Allelic
Composition
KitW/KitW-v
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• after 6 weeks of exposure to phorbol myristate acetate (PMA), a 10 to 100 fold increase in mast cells in the normally deficient skin is observed; wild-type mice exhibit a 3-4-fold increase following chronic inflammation
• mice show reduced numbers of splenic basophils
• mice have no peritoneal or connective tissue mast cells

hematopoietic system
• mice show reduced numbers of splenic basophils
• mice have no peritoneal or connective tissue mast cells




Genotype
MGI:3813817
ht10
Allelic
Composition
KitW-42J/KitW
Genetic
Background
involves: C57BL/6 * C57BL/6J * WB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-42J mutation (1 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• mice exhibit no mast cells in the skin
• mast cells do not survive co-culture with fibroblast cells and exhibit impaired attachment

pigmentation
• mice are black-eyed with white coats

hematopoietic system
• mice exhibit no mast cells in the skin
• mast cells do not survive co-culture with fibroblast cells and exhibit impaired attachment

integument
• mice are black-eyed with white coats




Genotype
MGI:3813819
ht11
Allelic
Composition
KitW-37J/KitW
Genetic
Background
involves: C57BL/6 * C57BL/6J * WB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-37J mutation (2 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• mice exhibit no mast cells in the skin
• mast cells do not survive co-culture with fibroblast cells and exhibit impaired attachment

hematopoietic system
• mice exhibit no mast cells in the skin
• mast cells do not survive co-culture with fibroblast cells and exhibit impaired attachment

pigmentation
• mice are black-eyed with white coats

integument
• mice are black-eyed with white coats




Genotype
MGI:3771729
ht12
Allelic
Composition
KitW/KitW-v
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Accumulation of lipids in the liver of KitW/KitW-v mice

growth/size/body
• weights are normal at embryonic day 16 but by birth the body weight is retarded behind that of wildtype siblings and by 14 days of age the average weight is almost 2 grams less than wildtype siblings

hematopoietic system
• identified as early as embryonic day 16, the earliest timepoint assessed, and the severity is slighly less than in W homozygotes and more severe than in W-v homozygotes

mortality/aging
• only 65% of compound heterozygotes identified at birth survived to 21 days of age

liver/biliary system
• seen in P7.5 mutants and adults

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
macrocytic anemia DOID:2361 J:243758




Genotype
MGI:3813694
ht13
Allelic
Composition
KitW-39J/KitW
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-39J mutation (2 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• ovaries contain fewer developing follicles than in wild-type mice
• mice lack spermatogenic activity

endocrine/exocrine glands
• ovaries contain fewer developing follicles than in wild-type mice

pigmentation
• mice are black-eyed with white coats

integument
• mice are black-eyed with white coats




Genotype
MGI:2387552
ht14
Allelic
Composition
KitW/KitW-v
Genetic
Background
involves: C57BL/6 * WB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• observed papillomas in the lower end of the esophagus but not in the upper two-thirds of the esophagus
• 40% developed prepyloric ulcer, however no duodenal ulcers were found

neoplasm
• 40% developed forestomach papillomas
• observed papillomas in the lower end of the esophagus but not in the upper two-thirds of the esophagus

immune system
• after receiving splenocytes from Kitl/Kitl donors, 15 weeks later, mice exhibit significant increase in mast cell numbers in skin, stomach and mesentery
• after receiving skin grafts from Kitl/Kitl donors, no increase in mast cell number in skin is seen, compared to increase observed in reciprocal transplant




Genotype
MGI:3813815
ht15
Allelic
Composition
KitW-Jic/KitW
Genetic
Background
involves: C57BL/6 * WB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-Jic mutation (0 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• mice exhibit no mast cells in the skin
• mast cells do not survive co-culture with fibroblast cells and exhibit impaired attachment

hematopoietic system
• mice exhibit no mast cells in the skin
• mast cells do not survive co-culture with fibroblast cells and exhibit impaired attachment

pigmentation
• mice are black-eyed with white coats

integument
• mice are black-eyed with white coats




Genotype
MGI:3813557
ht16
Allelic
Composition
KitW/KitW-v
Genetic
Background
involves: C57BL * C57BL/6 * WB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• unlike in wild type mice, all mice treated with ET-1 die by 60 minutes
• all mice die following treatment with S6b unlike wild type mice

homeostasis/metabolism
• unlike in wild type mice, all mice treated with ET-1 die by 60 minutes
• all mice die following treatment with S6b unlike wild type mice




Genotype
MGI:3813821
ht17
Allelic
Composition
KitW-n/KitW
Genetic
Background
involves: WB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-n mutation (0 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• mice exhibit no mast cells in the skin
• mast cells do not survive co-culture with fibroblast cells and exhibit impaired attachment

hematopoietic system
• mice exhibit no mast cells in the skin
• mast cells do not survive co-culture with fibroblast cells and exhibit impaired attachment

pigmentation
• mice are black-eyed with white coats

integument
• mice are black-eyed with white coats




Genotype
MGI:2171276
ht18
Allelic
Composition
KitW/KitW-v
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• serum albumin is detected in adluminal compartment of seminiferous tubules; an indication of sertoli cell tight junction barrier dysfunction

reproductive system
• serum albumin is detected in adluminal compartment of seminiferous tubules; an indication of sertoli cell tight junction barrier dysfunction
• impaired initial segment differentiation
• degenerating initial segment




Genotype
MGI:5307250
ht19
Allelic
Composition
KitW/KitW-v
Genetic
Background
(WB KitW x B6.Cg-KitW-v)F1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• following passive systemic anaphylaxis induced by IgE antigen challenge, mice fail to exhibit increased plasma histamine levels or temporary decrease in rectal temperature unlike wild-type mice
• after receiving i.p. injections of K/BxN mouse serum in an antibody-induced (autoimmune) arthritis model, mice are protected from arthritis, except for mild and transient symptoms

skeleton
• after receiving i.p. injections of K/BxN mouse serum in an antibody-induced (autoimmune) arthritis model, mice are protected from arthritis, except for mild and transient symptoms

homeostasis/metabolism
• following passive systemic anaphylaxis induced by IgE antigen challenge, mice fail to exhibit increased plasma histamine levels unlike wild-type mice
• following passive systemic anaphylaxis induced by IgE antigen challenge, mice fail to exhibit temporary decrease in rectal temperature unlike wild-type mice




Genotype
MGI:3665485
ht20
Allelic
Composition
KitW/KitW-v
Genetic
Background
(WB/ReJ x C57BL/6J-KitW-v/J)F1-KitW/KitW-v/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• significantly higher mortality is exhibited by mutants (88%) by day 21 after induction of anti-glomerular basement membrane glomerulonephritis than wild-type (25%)

cardiovascular system
• exhibit worse heart function and greater cardiac dilatation at 35 days after myocardial infarction than wild-type, showing decreased left ventricle end-systolic pressure and left ventricle thickness, increased left ventricle end-systolic volume, heart-to-body weight ratio, septal wall thickness, percentage of left ventricle infracted and collagen content, and significantly different stoke volume, and positive and negative dp/dt
• wild-type bone marrow transplanted into mutant mice rescues the adverse cardiac remodeling and impaired cardiac function after myocardial infarction and shows increased mobilization of angiogenic and natural killer cells
• 35 days after myocardial infarction show increased percentage of left ventricle infracted
• do not display increased vascular permeability in the dura mater in response to acute restrain stress as is seen in wild-type controls

homeostasis/metabolism
• exhibit worse heart function and greater cardiac dilatation at 35 days after myocardial infarction than wild-type, showing decreased left ventricle end-systolic pressure and left ventricle thickness, increased left ventricle end-systolic volume, heart-to-body weight ratio, septal wall thickness, percentage of left ventricle infracted and collagen content, and significantly different stoke volume, and positive and negative dp/dt
• wild-type bone marrow transplanted into mutant mice rescues the adverse cardiac remodeling and impaired cardiac function after myocardial infarction and shows increased mobilization of angiogenic and natural killer cells
• 35 days after myocardial infarction show increased percentage of left ventricle infracted
• moderate but significant increase in protoporphrin levels in red blood cells compared to controls
• treatment with Hrh4 antagonist (JNJ 10191584) during ovalbumin challenge results in decreased levels of IFN-gamma
• treatment with Hrh4 antagonist (JNJ 10191584) during ovalbumin challenge results in decreased levels of IL-4 (51%), IL-5 (35%), IL-6 (39%), and IL-17 (39%) in cultured peribronchiolar lymph nodes
• mice develop increased proteinuria compared to wild-type, 7 and 14 days after induction of anti-glomerular basement membrane (GBM) glomerulonephritis (GN)
• mice exhibit reduced adenosine-induced airway responsiveness compared with wild-type mice

immune system
N
• sensitized mice have a normal early phase reaction (initial phase of bronchoconstriction) after ovalbumin challenge
• mice fail to exhibit adenosine-induced neutrophil recruitment unlike wild-type mice
• treatment with Hrh4 antagonist (JNJ 10191584) during ovalbumin challenge results in decreased levels of IFN-gamma
• treatment with Hrh4 antagonist (JNJ 10191584) during ovalbumin challenge results in decreased levels of IL-4 (51%), IL-5 (35%), IL-6 (39%), and IL-17 (39%) in cultured peribronchiolar lymph nodes
• treatment with Hrh4 antagonist (JNJ 10191584) during ovalbumin challenge results in decreased total bronchoalveolar lavage cell numbers (54%) and eosinophils (75%)
• more T cells and macrophages infiltrate kidneys compared to control mice; increased numbers of CD4+ T cells and macrophages are found in glomeruli compared to controls on day 14 after anti-GBM GN

renal/urinary system
• mice develop increased proteinuria compared to wild-type, 7 and 14 days after induction of anti-glomerular basement membrane (GBM) glomerulonephritis (GN)
• more T cells and macrophages infiltrate kidneys compared to control mice; increased numbers of CD4+ T cells and macrophages are found in glomeruli compared to controls on day 14 after anti-GBM GN
• in mice there is accumulation of PAS stain-positive material as well as crescent formation in glomeruli, compared to wild-type
• crescent formation in glomeruli

hematopoietic system
• moderate but significant increase in protoporphrin levels in red blood cells compared to controls
• mice fail to exhibit adenosine-induced neutrophil recruitment unlike wild-type mice

respiratory system
• mice exhibit reduced adenosine-induced airway responsiveness and neutrophil recruitment compared with wild-type mice




Genotype
MGI:4849373
cx21
Allelic
Composition
f/f+
KitW/Kit+
Genetic
Background
FL/1Re-KitW/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
f mutation (4 available); any f mutation (4 available)
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• white pigment covers an average of 22% and 27.5% of the ventrum in females and males respectively

integument
• white pigment covers an average of 22% and 27.5% of the ventrum in females and males respectively




Genotype
MGI:4849372
cx22
Allelic
Composition
f/f
KitW/Kit+
Genetic
Background
FL/1Re-KitW/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
f mutation (4 available); any f mutation (4 available)
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• although slightly reduced in body weight relative to controls this is less severe than in flexed-tail homozygotes wildtype at the Kit locus

hematopoietic system
• the reduction in erythrocyte cell number at birth is less severe than in flex-tail homozygotes that are wildtype at the Kit locus and by 7 days of age the count is higher than normal and this persists
• decreased at birth, but closer to normal values than in flexed-tail homozgyotes that are wildtype at the Kit locus
• from birth onward more severe decrease in erythrocyte volume than in flexed-tail homozygotes wildtype at the Kit locus

pigmentation
• the amount of white pigmentation is greater than the sum of the white pigmentation of the distinct mutants, with females having an average of 54.7% white on the ventrum and males having an average of 59.7%

integument
• the amount of white pigmentation is greater than the sum of the white pigmentation of the distinct mutants, with females having an average of 54.7% white on the ventrum and males having an average of 59.7%




Genotype
MGI:3586341
cx23
Allelic
Composition
Il3tm1Glli/Il3tm1Glli
KitW/KitW-v
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * WB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il3tm1Glli mutation (1 available); any Il3 mutation (31 available)
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• particularly significant delay in expulsion of parasites - Strongyloides venezuelensis




Genotype
MGI:3663023
cx24
Allelic
Composition
Flt3tm1Irl/Flt3tm1Irl
KitW/KitW-v
Genetic
Background
involves: 129S/SvEv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Flt3tm1Irl mutation (4 available); any Flt3 mutation (90 available)
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• slightly reduced body weight

hematopoietic system
• absolute numbers of myeloid progenitors reduced 8 fold
• myeloid lineages are reduced in numbers
• reduced cellularity
• greater reduction in numbers
• proportion of CD4 and CD8 single positive T cells is increased 2 fold
• absolute numbers of single positive cells reduced 4 fold
• severely restricted in numbers
• severely restricted in numbers
• lymphoid lineages are reduced in numbers
• 10% reduction
• absolute numbers reduced 16%
• greater reduction

immune system
• myeloid lineages are reduced in numbers
• greater reduction in numbers
• proportion of CD4 and CD8 single positive T cells is increased 2 fold
• absolute numbers of single positive cells reduced 4 fold
• severely restricted in numbers
• severely restricted in numbers
• lymphoid lineages are reduced in numbers
• 10% reduction
• absolute numbers reduced 16%
• greater reduction

endocrine/exocrine glands




Genotype
MGI:3714525
cx25
Allelic
Composition
KitW/KitW
Tg(PDGFB-EPO)321Zbz/?
Genetic
Background
involves: C3H * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
Tg(PDGFB-EPO)321Zbz mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• thymic TN-1 cells are lacking
• severe block to T cell and B cell development is similar to that seen in KitW-vkd homozygotes
• severe block to T cell and B cell development is similar to that seen in KitW-vkd homozygotes
• bone marrow fraction B cells are lacking

immune system
• thymic TN-1 cells are lacking
• severe block to T cell and B cell development is similar to that seen in KitW-vkd homozygotes
• severe block to T cell and B cell development is similar to that seen in KitW-vkd homozygotes
• bone marrow fraction B cells are lacking

endocrine/exocrine glands
• thymic TN-1 cells are lacking




Genotype
MGI:3817635
cx26
Allelic
Composition
KitW/Kit+
Tg(PGK1-KITLG*220)441Daw/0
Genetic
Background
involves: C3H/HeJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW mutation (10 available); any Kit mutation (182 available)
Tg(PGK1-KITLG*220)441Daw mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• 46% of mice show coat color similar to hemizygous transgenics or heterozygous KitW animals, while 29% show wild-type agouti coat coloring
• 25% of double mutants have a more severe deficiency in coat color pigmentation with large areas of hypopigmentation

hematopoietic system
• numbers of connective tissue mast cells are greatly reduced relative to controls

immune system
• numbers of connective tissue mast cells are greatly reduced relative to controls

integument
• 46% of mice show coat color similar to hemizygous transgenics or heterozygous KitW animals, while 29% show wild-type agouti coat coloring
• 25% of double mutants have a more severe deficiency in coat color pigmentation with large areas of hypopigmentation




Genotype
MGI:3619906
cx27
Allelic
Composition
Fbn1Tsk/Fbn1+
KitW/Kit+
Genetic
Background
involves: C57BL/6 * C57BL/10 * DBA/2 * WB/ReJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fbn1Tsk mutation (2 available); any Fbn1 mutation (173 available)
KitW mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• variable amounts of white-spotting on a slightly diluted coat color
• variable amounts of white-spotting on a slightly diluted coat color

integument
• variable amounts of white-spotting on a slightly diluted coat color
• variable amounts of white-spotting on a slightly diluted coat color
• progressive development of skin fibrosis similar to that seen in single heterozygous Fbn1 mutant mice




Genotype
MGI:3619905
cx28
Allelic
Composition
Fbn1Tsk/Fbn1+
KitW/KitW-v
Genetic
Background
involves: C57BL/6 * C57BL/10 * DBA/2 * WB/ReJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fbn1Tsk mutation (2 available); any Fbn1 mutation (173 available)
KitW mutation (10 available); any Kit mutation (182 available)
KitW-v mutation (10 available); any Kit mutation (182 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• absence of interscapular skin mast cells

respiratory system
• enlargement of airspaces

immune system
• absence of interscapular skin mast cells

pigmentation
• white coat and black eyes

integument
• white coat and black eyes
• increase in subcutaneous connective tissue, with an accumulation beneath the panniculus carnosus muscle
• tight skin develops around 7 days of age
• develop skin fibrosis, indicating that fibrosis is mast cell independent, however the degree of fibrosis development at older ages (5-7 months) is less than in single heterozygous Fbn1 mutant mice, which contain elevated levels of mast cells, indicating that mast cells contribute to fibrosis later in life





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