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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Cx3cr1tm1Zm
targeted mutation 1, Ziad Mallat
MGI:3608773
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Cx3cr1tm1Zm/Cx3cr1tm1Zm C.129-Cx3cr1tm1Zm MGI:3814728
hm2
Cx3cr1tm1Zm/Cx3cr1tm1Zm involves: 129 * C57BL/6 MGI:3814729
hm3
Cx3cr1tm1Zm/Cx3cr1tm1Zm involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:3618276
cx4
Apoetm1Unc/Apoetm1Unc
Cx3cr1tm1Zm/Cx3cr1tm1Zm
B6.129-Apoetm1Unc Cx3cr1tm1Zm MGI:3618277
cx5
Apoetm1Unc/Apoetm1Unc
Cx3cr1tm1Zm/Cx3cr1+
B6.129-Apoetm1Unc Cx3cr1tm1Zm MGI:3618279
cx6
Ccl2tm1Rol/Ccl2tm1Rol
Cx3cr1tm1Zm/Cx3cr1tm1Zm
involves: 129 * 129S4/SvJae MGI:3814819


Genotype
MGI:3814728
hm1
Allelic
Composition
Cx3cr1tm1Zm/Cx3cr1tm1Zm
Genetic
Background
C.129-Cx3cr1tm1Zm
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cx3cr1tm1Zm mutation (1 available); any Cx3cr1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• subretinal microglial cells accumulate with age in the retina unlike in wild-type mice
• however, dark raised mice exhibit reduced numbers of subretinal microglial cells in the retina
• however, dark raised mice do not exhibit thinning or degeneration
• the retinal photoreceptor layer is thin at 2 months and degenerated at 4 months of age
• mice exhibit degeneration of the outer retina
• however, dark raised mice do not exhibit degeneration

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
age related macular degeneration 12 DOID:0110024 OMIM:613784
J:127548




Genotype
MGI:3814729
hm2
Allelic
Composition
Cx3cr1tm1Zm/Cx3cr1tm1Zm
Genetic
Background
involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cx3cr1tm1Zm mutation (1 available); any Cx3cr1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• following laser injury, choroid neovascularization is twice as much as in similarly treated wild-type mice
• subretinal microglial cells accumulate with age in the retina unlike in wild-type mice
• at 12 months, mice exhibit a 30% reduction in the thickness of the retinal outer nuclear layer compared to in wild-type mice
• at 18 months, the thickness of the retinal photoreceptor cell layer is reduced to 40% of wild-type
• following laser injury, mice exhibit increased degeneration compared to untreated homozygotes or similarly treated wild-type mice
• however, mice do not exhibit increased degeneration following laser injuries at distances of 300 and 400 um from laser impact
• at 18 months
• mice exhibit an accumulation of yellow, lipid-bloated subretinal microglial cells in the deep layer of the retina with age that is not observed in wild-type mice

cardiovascular system
• following laser injury, choroid neovascularization is twice as much as in similarly treated wild-type mice

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
age related macular degeneration 12 DOID:0110024 OMIM:613784
J:127548




Genotype
MGI:3618276
hm3
Allelic
Composition
Cx3cr1tm1Zm/Cx3cr1tm1Zm
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cx3cr1tm1Zm mutation (1 available); any Cx3cr1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• absent splenocyte chemotaxis in response to CX3CL1; however induction of T cell cytokine production by concanavalin A is similar to wild-type

immune system
• absent splenocyte chemotaxis in response to CX3CL1; however induction of T cell cytokine production by concanavalin A is similar to wild-type




Genotype
MGI:3618277
cx4
Allelic
Composition
Apoetm1Unc/Apoetm1Unc
Cx3cr1tm1Zm/Cx3cr1tm1Zm
Genetic
Background
B6.129-Apoetm1Unc Cx3cr1tm1Zm
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Apoetm1Unc mutation (33 available); any Apoe mutation (158 available)
Cx3cr1tm1Zm mutation (1 available); any Cx3cr1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• lesion area in the aorta and aortic sinus is decreased by about 50% compared to mice homozygous for the Apoe allele only; however the accumulation of smooth muscle cells and collagen within the plaque is similar to wild-type
• a 50% reduction is seen in the aortic sinus area containing monocyte-macrophage markers




Genotype
MGI:3618279
cx5
Allelic
Composition
Apoetm1Unc/Apoetm1Unc
Cx3cr1tm1Zm/Cx3cr1+
Genetic
Background
B6.129-Apoetm1Unc Cx3cr1tm1Zm
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Apoetm1Unc mutation (33 available); any Apoe mutation (158 available)
Cx3cr1tm1Zm mutation (1 available); any Cx3cr1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• lesion area in the thoracic aorta is decreased by about 50% compared to mice homozygous for the Apoe allele only




Genotype
MGI:3814819
cx6
Allelic
Composition
Ccl2tm1Rol/Ccl2tm1Rol
Cx3cr1tm1Zm/Cx3cr1tm1Zm
Genetic
Background
involves: 129 * 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ccl2tm1Rol mutation (2 available); any Ccl2 mutation (25 available)
Cx3cr1tm1Zm mutation (1 available); any Cx3cr1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• beginning as early as 12 weeks of age,15% of mice exhibit neovascularization of the choroid unlike in wild-type mice
• choroidal neovascular vessels that penetrate Bruch membrane and enter the outer retinal layers are surrounded by hyperplastic retinal pigmented epithelium cells or atrophic retinal pigmented epithelium areas
• microglial infiltrates are observed in retinal lesions
• severity increases with age
• unlike in wild-type mice, vacuolation of the retinal pigmented epithelium (RPE) is observed
• mice exhibit a reduction in melanosomes and an increase in lipofuscin in the RPE unlike in wild-type mice
• unlike in wild-type mice, local hypopigmentation of the retina is observed
• in some areas with severity increasing with age
• by 6 to 9 weeks, mice exhibit drusen-like lesions with heterogeneous, round or domed-shaped, soft-bordered yellowish deposits within the subretina not observed in wild-type mice
• retinal depositions enlarge or flatten and become confluent with age
• beginning at 8 weeks of age, mice exhibit focal thickening in the Bruch membrane compared to wild-type mice

reproductive system
• average litter size is half of wild-type

nervous system
• severity increases with age

pigmentation
• 20% of mice exhibit patchy skin depigmentation on the face and upper extremities
• unlike in wild-type mice, vacuolation of the retinal pigmented epithelium (RPE) is observed
• mice exhibit a reduction in melanosomes and an increase in lipofuscin in the RPE unlike in wild-type mice
• unlike in wild-type mice, local hypopigmentation of the retina is observed
• in some areas with severity increasing with age

cardiovascular system
• beginning as early as 12 weeks of age,15% of mice exhibit neovascularization of the choroid unlike in wild-type mice
• choroidal neovascular vessels that penetrate Bruch membrane and enter the outer retinal layers are surrounded by hyperplastic retinal pigmented epithelium cells or atrophic retinal pigmented epithelium areas

integument
• 20% of mice exhibit patchy skin depigmentation on the face and upper extremities

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
age related macular degeneration DOID:10871 OMIM:PS603075
J:126935





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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