Phenotypes associated with this allele

• Allele Symbol: Erbb2^{tm7(Erbb2)Mul}
• Allele Name: targeted mutation 7, William J Muller
• Allele ID: MGI:3521860
• Summary: 2 genotypes

Jump to	Allelic Composition	Genetic Background	Genotype ID
hm1	Erbb2^tm7(Erbb2)Mul/Erbb2^tm7(Erbb2)Mul	involves: 129S1/Sv * 129X1/SvJ * BALB/c	MGI:3522499
ht2	Erbb2^tm7(Erbb2)Mul/Erbb2^tm1Haus	involves: 129S1/Sv * 129S4/SvJae * 129X1/SvJ * BALB/c	MGI:3522576

Genotype
MGI:3522499

hm1

• Allelic Composition: Erbb2^{tm7(Erbb2)Mul}/Erbb2^{tm7(Erbb2)Mul}
• Genetic Background: involves: 129S1/Sv * 129X1/SvJ * BALB/c

• ♀: phenotype observed in females
• ♂: phenotype observed in males
• N: normal phenotype

nervous system

abnormal sensory neuron morphology ( J:94397 )

• trajectories of sensory cutaneous nerves in the thoracic body wall appear intact but are highly disorganized and severely defasciculated, however homozygotes appear healthy and fertile

Genotype
MGI:3522576

ht2

• Allelic Composition: Erbb2^{tm7(Erbb2)Mul}/Erbb2^tm1Haus
• Genetic Background: involves: 129S1/Sv * 129S4/SvJae * 129X1/SvJ * BALB/c

mortality/aging

perinatal lethality, complete penetrance ( J:94397 )

• die shortly after birth struggling unsuccessfully to breathe

respiratory system

respiratory failure ( J:94397 )

nervous system

abnormal phrenic nerve morphology ( J:94397 )

• phrenic nerves are thinned, disorganized, and discontinuous or incomplete and they lack an apparent main nerve trunk from which smaller presynaptic branches originate

defasiculated phrenic nerve ( J:94397 )

abnormal phrenic nerve innervation pattern to diaphragm ( J:94397 )

• diaphragm muscle is very poorly innervated by the phrenic nerve

cellular

defasiculated phrenic nerve ( J:94397 )