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Phenotypes Associated with This Genotype
Genotype
MGI:7562242
Allelic
Composition
Juntm4Wag/Juntm4Wag
Isl1tm1(cre)Sev/Isl1+
Genetic
Background
involves: 129P2/OlaHsd * 129S/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Isl1tm1(cre)Sev mutation (1 available); any Isl1 mutation (38 available)
Juntm4Wag mutation (0 available); any Jun mutation (14 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice are present at the expected Mendelian ratios at E14.5-P0, indicating normal embryonic survival

cardiovascular system
• at E14.5 to P0, seven of 22 (32%) embryos exhibit aortic arch artery remodeling defects, including interrupted aortic arch (IAA) type B, hypoplasia of the B segment of the aortic arch, and aberrant retro-esophageal right subclavian artery
• at E14.5 to P0, seven of 22 (32%) embryos exhibit aberrant retro-esophageal right subclavian artery
• at E14.5 to P0, seven of 22 (32%) embryos exhibit interrupted aortic arch (IAA) type B
• at E14.5 to P0, seven of 8 (88%) embryos exhibit outflow tract (OFT) defects, including ventricular septal defect (VSD), double outlet right ventricle, and semilunar valve hyperplasia
• a non-significant trend toward a decrease in proliferating pHH3+ cells and an increase in apoptotic TUNEL+ cells is noted in the OFT at E10.5
• at E14.5 to P0, seven of 8 (88%) embryos exhibit DORV
• at E14.5 to P0, seven of 8 (88%) embryos exhibit VSDs
• at E14.5 to P0, six of 8 (75%) embryos exhibit an aortic valve defect
• at E14.5 to P0, seven of 8 (88%) embryos exhibit a pulmonary valve defect
• at PO, pulmonary valve leaflets are enlarged and hyperplastic
• at E14.5 to P0, seven of 8 (88%) embryos exhibit semilunar valve hyperplasia
• however, atrioventricular (mitral and tricuspid) valves are unaffected

embryo
• at E14.5 to P0, seven of 22 (32%) embryos exhibit aortic arch artery remodeling defects, including interrupted aortic arch (IAA) type B, hypoplasia of the B segment of the aortic arch, and aberrant retro-esophageal right subclavian artery

craniofacial
• at E14.5 to P0, seven of 22 (32%) embryos exhibit aortic arch artery remodeling defects, including interrupted aortic arch (IAA) type B, hypoplasia of the B segment of the aortic arch, and aberrant retro-esophageal right subclavian artery


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
12/30/2025
MGI 6.24
The Jackson Laboratory