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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(Rr418-Luc)Harry1Ward
transgene insertion Harry1, Andrew Ward
MGI:7461629
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
tg1
Tg(Rr418-Luc)Harry1Ward/Tg(Rr418-Luc)Harry1Ward involves: C57BL/6J * CBA/Ca MGI:8385104
tg2
Tg(Rr418-Luc)Harry1Ward/0 involves: C57BL/6J * CBA/Ca MGI:8385103


Genotype
MGI:8385104
tg1
Allelic
Composition
Tg(Rr418-Luc)Harry1Ward/Tg(Rr418-Luc)Harry1Ward
Genetic
Background
involves: C57BL/6J * CBA/Ca
Find Mice Using the International Mouse Strain Resource (IMSR)
No mouse lines available in IMSR.
See publication links below for author information.
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice survive to weaning but fail to thrive and mice are routinely culled within the first 2 weeks after birth to prevent suffering

digestive/alimentary system
• distal colon exhibits severe disorganization of the mucosa
• reduction in thickness of the muscle layers in the distal colon
• a constriction point of variable position is seen within the colon
• abdominal swelling that is correlated with megacolon
• passage of feces along the large intestine is impeded

growth/size/body

muscle
• reduction in thickness of the muscle layers in the distal colon

nervous system
• myenteric ganglia are almost entirely absent in the colon
• the plexus of Auerbach is reduced to isolated patches

pigmentation
• melanized choroidal cells are absent in the eyes
• however, the retinal pigmented epithelium and other cell layers appear normal

vision/eye
• melanized choroidal cells are absent in the eyes
• however, the retinal pigmented epithelium and other cell layers appear normal

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
Waardenburg syndrome type 4C DOID:0110955 OMIM:613266
J:104443




Genotype
MGI:8385103
tg2
Allelic
Composition
Tg(Rr418-Luc)Harry1Ward/0
Genetic
Background
involves: C57BL/6J * CBA/Ca
Find Mice Using the International Mouse Strain Resource (IMSR)
No mouse lines available in IMSR.
See publication links below for author information.
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• some mice exhibit a non-pigmented belly spot of variable size

pigmentation
• some mice exhibit a non-pigmented belly spot of variable size





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last database update
06/16/2026
MGI 6.24
The Jackson Laboratory