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Phenotypes Associated with This Genotype
Genotype
MGI:4838139
cx12
Allelic
Composition
Fzd1tm1.1Nat/Fzd1tm1.1Nat
Fzd2tm1.1Nat/Fzd2tm1.1Nat
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fzd1tm1.1Nat mutation (1 available); any Fzd1 mutation (30 available)
Fzd2tm1.1Nat mutation (1 available); any Fzd2 mutation (34 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• 16 of 22 mice between E16 and E18 exhibit either ventricular septal defect (VSD), overriding aorta, double outlet right ventricle, or a combination of VSD and one of the other two defects unlike wild-type mice

craniofacial
• at E16, the roof of the mouth is wider than in wild-type mice
• at E13, the number of apoptotic cells is increased 2-fold compared to in wild-type mice likely as a secondary consequence to failure of palate shelf movement
• however, proliferation of cells during palate development is normal
• in nearly all mice

embryo
N
• mice exhibit normal dorsal root ganglia and thymic rudiments indicating normal neural crest migration
• mice do not exhibit neural tube defects

hearing/vestibular/ear
• mice exhibit cochlear hair cell defects (hair cell number and outer hair cell row 3 orientation) unlike wild-type mice
• most severe in outer hair cell row 3

homeostasis/metabolism
• at birth

nervous system
• mice exhibit cochlear hair cell defects (hair cell number and outer hair cell row 3 orientation) unlike wild-type mice
• most severe in outer hair cell row 3

skeleton

digestive/alimentary system
• at E13, the number of apoptotic cells is increased 2-fold compared to in wild-type mice likely as a secondary consequence to failure of palate shelf movement
• however, proliferation of cells during palate development is normal
• in nearly all mice

growth/size/body
• at E16, the roof of the mouth is wider than in wild-type mice
• at E13, the number of apoptotic cells is increased 2-fold compared to in wild-type mice likely as a secondary consequence to failure of palate shelf movement
• however, proliferation of cells during palate development is normal
• in nearly all mice


Contributing Projects:
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
03/18/2025
MGI 6.24
The Jackson Laboratory