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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(Atoh1-ptxA,-mCherry)1Cayo
transgene insertion 1, Michel Cayouette
MGI:5702608
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
tg1
Tg(Atoh1-ptxA,-mCherry)1Cayo/? Not Specified MGI:5702612


Genotype
MGI:5702612
tg1
Allelic
Composition
Tg(Atoh1-ptxA,-mCherry)1Cayo/?
Genetic
Background
Not Specified
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phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• at E18.5 there is incomplete transgene expression in the hair cells of the organ of Corti resulting in a mosaic phenotype in which those hair cells that express the transgene have abnormal hair cell orientation and skewed intrinsic asymmetry, and there is a gradient of severity of defects in kinocilia orientation such that kineocilia in row 1 outer hair cells seem inverted while the alterations in OHC2 and OHC3 are less severe and have the kinocilia positioned at the medial and lateral surface, respectively. In the hair cells expressing the transgene, the bare zone is almost absent, the microvilli/stereocilia and underlying cuticular plate occupy most of the diminished apical surface, and kinocilia are abnormally close to cell junctions

hearing/vestibular/ear
• at E18.5 there is incomplete transgene expression in the hair cells of the organ of Corti resulting in a mosaic phenotype in which those hair cells that express the transgene have abnormal hair cell orientation and skewed intrinsic asymmetry, and there is a gradient of severity of defects in kinocilia orientation such that kineocilia in row 1 outer hair cells seem inverted while the alterations in OHC2 and OHC3 are less severe and have the kinocilia positioned at the medial and lateral surface, respectively. In the hair cells expressing the transgene, the bare zone is almost absent, the microvilli/stereocilia and underlying cuticular plate occupy most of the diminished apical surface, and kinocilia are abnormally close to cell junctions

nervous system
• at E18.5 there is incomplete transgene expression in the hair cells of the organ of Corti resulting in a mosaic phenotype in which those hair cells that express the transgene have abnormal hair cell orientation and skewed intrinsic asymmetry, and there is a gradient of severity of defects in kinocilia orientation such that kineocilia in row 1 outer hair cells seem inverted while the alterations in OHC2 and OHC3 are less severe and have the kinocilia positioned at the medial and lateral surface, respectively. In the hair cells expressing the transgene, the bare zone is almost absent, the microvilli/stereocilia and underlying cuticular plate occupy most of the diminished apical surface, and kinocilia are abnormally close to cell junctions





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last database update
05/14/2024
MGI 6.23
The Jackson Laboratory