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Phenotypes Associated with This Genotype
Genotype
MGI:3522499
Allelic
Composition		 Erbb2tm7(Erbb2)Mul/Erbb2tm7(Erbb2)Mul
Genetic
Background		 involves: 129S1/Sv * 129X1/SvJ * BALB/c
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Erbb2tm7(Erbb2)Mul mutation (0 available); any Erbb2 mutation (57 available)
♀ 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

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)
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Funding Information
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Send questions and comments to User Support. 		last database update
01/20/2026
MGI 6.24 		The Jackson Laboratory