About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Gja1tm1.1Gfi
targeted mutation 1.1, Glenn I Fishman
MGI:3652926
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Gja1tm1.1Gfi/Gja1tm1.1Gfi Not Specified MGI:3652971
ht2
Gja1tm1.1Gfi/Gja1+ Not Specified MGI:3652978
cn3
Gja1tm1Gfi/Gja1tm1.1Gfi
Tg(Pax3-cre)1Joe/0
involves: 129/Sv * C57BL/6 * FVB/N * SJL MGI:3652963


Genotype
MGI:3652971
hm1
Allelic
Composition
Gja1tm1.1Gfi/Gja1tm1.1Gfi
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gja1tm1.1Gfi mutation (0 available); any Gja1 mutation (59 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

cardiovascular system
• exhibit exaggerated right ventricular trabeculation
• exhibit misshapen right ventricle outflow tracts with large infundibular bulges
• outflow tracts appear dilated and more densely trabeculated
• large infundibular bulges; the infundibular myocardium begins to bulge above the plane of the pulmonic valve at E15.5
• regions of the infundibular wall show thinning
• the right ventricular wall is slightly thinner

nervous system
• exhibit a late phase of cellular delamination from the dorsal and lateral neural tube

muscle
• exhibit exaggerated right ventricular trabeculation




Genotype
MGI:3652978
ht2
Allelic
Composition
Gja1tm1.1Gfi/Gja1+
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gja1tm1.1Gfi mutation (0 available); any Gja1 mutation (59 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• 2 of 5 mutants exhibit myocardial and septal coronary arteries originating from the same ostium on the aorta, rather than branching from a main coronary artery




Genotype
MGI:3652963
cn3
Allelic
Composition
Gja1tm1Gfi/Gja1tm1.1Gfi
Tg(Pax3-cre)1Joe/0
Genetic
Background
involves: 129/Sv * C57BL/6 * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gja1tm1.1Gfi mutation (0 available); any Gja1 mutation (59 available)
Gja1tm1Gfi mutation (0 available); any Gja1 mutation (59 available)
Tg(Pax3-cre)1Joe mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• partial postnatal lethality, as only 4.6% of pups at 2 weeks of age are mutants

growth/size/body
• smaller at birth
• neonatal weights are decreased by 11.6%

cardiovascular system
• 3 of 5 neonates exhibit a variety of coronary abnormalities
• the right ventricle appears more heavily trabeculated at E15.5
• exhibit a late phase of cellular delamination from the dorsal and lateral neural tube, a markedly increased abundance of neuroepithelium-derived cells outside of the neural tube and an excess of such cells infiltrating the heart and infundibulum
• neonates exhibit grossly misshapen right ventricle outflow tract (RVOT), with large infundibular bulges seen bilaterally flanking the outflow tract
• RVOT is first observed at E15.5, with the right ventricle appearing more heavily trabeculated
• outflow tracts appear dilated and more densly trabeculated
• regions of the infundibular wall showing thinning
• the right ventricular wall is slightly thinner

nervous system
• exhibit a late phase of cellular delamination from the dorsal and lateral neural tube, a markedly increased abundance of neuroepithelium-derived cells outside of the neural tube and an excess of such cells infiltrating the heart and infundibulum

muscle
• the right ventricle appears more heavily trabeculated at E15.5





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
04/16/2024
MGI 6.23
The Jackson Laboratory