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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(ACTA1-cre)AMcle
transgene insertion A, Ian S McLennan
MGI:4833970
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Smad4tm2.1Cxd/Smad4tm2.1Cxd
Tg(ACTA1-cre)AMcle/0
involves: 129S6/SvEvTac * C57BL/6 MGI:5297811


Genotype
MGI:5297811
cn1
Allelic
Composition
Smad4tm2.1Cxd/Smad4tm2.1Cxd
Tg(ACTA1-cre)AMcle/0
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Smad4tm2.1Cxd mutation (2 available); any Smad4 mutation (48 available)
Tg(ACTA1-cre)AMcle mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• significant midgestational lethality occurs between E13.5 and E14.5 with only 2 viable mutant fetuses (and 6 dead) out of 34 recovered at E14.5
• 2 viable fetuses (8 dead) are recovered at E18.5 (2 mutant/50 total)
• no live mutants are recovered after birth

cardiovascular system
• decreased density of trabeculae in ventricles is observed at E13.5
• thinning of compact layer of ventricular myocardium is observed at E13.5
• observed at E13.5; defect is more closely related to aortic orifice in mutants
• observed at E13.5, resulting from due to deficiency of mesenchyme in the region where outflow tract and AV cushions should meet
• in E13.5 mutatnts, only a small fibrous ridge separates the aortic valve from right ventricular outflow tract, as outlet cushions are proximally not fused
• bifurcated outflow tract is in right ventricle, not over ventricular septum

muscle
• decreased density of trabeculae in ventricles is observed at E13.5
• thinning of compact layer of ventricular myocardium is observed at E13.5





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory