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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Egr2tm4Pch
targeted mutation 4, Patrick Charney
MGI:3798483
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Egr2tm4Pch/Egr2tm4Pch involves: BALB/c * C57BL/6 MGI:3803096


Genotype
MGI:3803096
hm1
Allelic
Composition
Egr2tm4Pch/Egr2tm4Pch
Genetic
Background
involves: BALB/c * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Egr2tm4Pch mutation (1 available); any Egr2 mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die at around 3 weeks of age (between P19 and P22) with high-frequency breathing

nervous system
• between P8 and P14, Schwann cell proliferation is increased
• the trigeminal and facial/acoustic ganglia are fused
• the trigeminal and facial/acoustic ganglia are fused
• the glossopharyngeal and vagal nerves are in abnormal proximity
• the trigeminal and facial/acoustic ganglia are fused
• the glossopharyngeal and vagal nerves are in abnormal proximity

behavior/neurological
• mice exhibit hindlimb coordination impairments that proceed to difficulties in muscular coordination and in positioning of hindlimbs and forelimbs by P17
• mice exhibit progressive posterior and anterior paralysis that leads to loss of locomotion by 3 weeks of age

respiratory system
• mice exhibit high-frequency breathing at around 3 weeks of age that leads to death

growth/size/body
• mice are slightly smaller at birth with different in size increasing during postnatal week 2 and by P15 mice are 80% of wild-type size and further deterioration afterwards

cellular
• between P8 and P14, Schwann cell proliferation is increased





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory