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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Gja1tm3(Gja5)Kwi
targeted mutation 3, Klaus Willecke
MGI:2386241
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Gja1tm3(Gja5)Kwi/Gja1tm3(Gja5)Kwi involves: 129P2/OlaHsd * C57BL/6 MGI:3620992
ht2
Gja1tm3(Gja5)Kwi/Gja1+ involves: 129P2/OlaHsd * C57BL/6 MGI:3620994


Genotype
MGI:3620992
hm1
Allelic
Composition
Gja1tm3(Gja5)Kwi/Gja1tm3(Gja5)Kwi
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gja1tm3(Gja5)Kwi mutation (0 available); any Gja1 mutation (59 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• 40% die between birth and 21 days of age, with most lost 5 days after birth

cellular
• primary spermatogonia are severely reduced in number
• secondary spermatogonia and further differentiated stages of spermatogenesis are completely absent

growth/size/body
• some neonates exhibit a mild heart hypertrophy, however the heart ventricles are normal and do not exhibit any other heart morphology abnormalities
• males and females are, respectively, 69% and 73% the weight of wild-type males and females

cardiovascular system
• some neonates exhibit a mild heart hypertrophy, however the heart ventricles are normal and do not exhibit any other heart morphology abnormalities
• 10 of 12 exhibit spontaneous singular premature ventricular beats, however ventricular conductance is normal

reproductive system
• secondary spermatogonia and further differentiated stages of spermatogenesis are completely absent
• primary spermatogonia are severely reduced in number
• show all stages of follicular maturation but at reduced numbers
• most of the lumen of seminiferous tubules is occupied by Sertoli cells
• testis is more hypotrophic compared to other organs, reaching less than 20% of the testis weight (relative to body weight) of controls
• no homozygous females show signs of pregnancy or delivered litters, however do not exhibit germ-cell deficiency

endocrine/exocrine glands
• show all stages of follicular maturation but at reduced numbers
• most of the lumen of seminiferous tubules is occupied by Sertoli cells
• testis is more hypotrophic compared to other organs, reaching less than 20% of the testis weight (relative to body weight) of controls

vision/eye
N
• do not develop cataracts




Genotype
MGI:3620994
ht2
Allelic
Composition
Gja1tm3(Gja5)Kwi/Gja1+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gja1tm3(Gja5)Kwi mutation (0 available); any Gja1 mutation (59 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• some heterozygotes exhibit spontaneous atrioventricular dissociations
• some heterozygotes exhibit spontaneous singular premature ventricular beats





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last database update
04/30/2024
MGI 6.23
The Jackson Laboratory