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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Erbb2tm3(Erbb2)Mul
targeted mutation 3, William Muller
MGI:2449788
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Erbb2tm3(Erbb2)Mul/Erbb2tm3(Erbb2)Mul involves: 129S1/Sv * 129X1/SvJ MGI:2449943
cn2
Erbb2tm3(Erbb2)Mul/Erbb2tm3(Erbb2)Mul
Tg(Ckmm-cre)5Khn/0
involves: 129S1/Sv * 129X1/SvJ * BALB/c * FVB MGI:2449942
cn3
Erbb2tm3(Erbb2)Mul/Erbb2tm1Mll
Tg(ACTA1-cre)1Mll/0
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:2656909


Genotype
MGI:2449943
hm1
Allelic
Composition
Erbb2tm3(Erbb2)Mul/Erbb2tm3(Erbb2)Mul
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Erbb2tm3(Erbb2)Mul mutation (0 available); any Erbb2 mutation (59 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
muscle
• this reduced number had no apparent effect on the motor capability of the animals
• this reduced number had no apparent effect on the motor capability of the animals

nervous system
• this reduced number had no apparent effect on the motor capability of the animals
• this reduced number had no apparent effect on the motor capability of the animals




Genotype
MGI:2449942
cn2
Allelic
Composition
Erbb2tm3(Erbb2)Mul/Erbb2tm3(Erbb2)Mul
Tg(Ckmm-cre)5Khn/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * BALB/c * FVB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Erbb2tm3(Erbb2)Mul mutation (0 available); any Erbb2 mutation (59 available)
Tg(Ckmm-cre)5Khn mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• early mortality is observed in severely affected mutants

behavior/neurological
• loss of coordination
• progressive with age, animals rest on abdomen instead of limbs
• mutants often maintain limbs in an abnormal posture, progressing from a flexor to an extensor posture
• progressive with age

craniofacial

growth/size/body

muscle
• an increase in apoptosis is observed in mutant myoblasts infected with adenoviral-cre (to completely obliterate expression) during induced differentiation
• 2 weeks after a muscle crush injury in the tibialis anterior, muscle fibers that have regenerated are not continuous and are interspersed with encapsulated cellular debris

skeleton

nervous system

cellular
• an increase in apoptosis is observed in mutant myoblasts infected with adenoviral-cre (to completely obliterate expression) during induced differentiation




Genotype
MGI:2656909
cn3
Allelic
Composition
Erbb2tm3(Erbb2)Mul/Erbb2tm1Mll
Tg(ACTA1-cre)1Mll/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Erbb2tm1Mll mutation (1 available); any Erbb2 mutation (59 available)
Erbb2tm3(Erbb2)Mul mutation (0 available); any Erbb2 mutation (59 available)
Tg(ACTA1-cre)1Mll mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• when placed on a slippery surface, mutants are unable to position their limbs properly
• mutants exhibit spastic movements
• abnormal hindlimb extension reflexes

muscle
• initial contact between sensory Ia afferent neurons and myotubes occurs but subsequent development of muscle spindles is impaired
• absence of muscle spindles

nervous system
• initial contact between sensory Ia afferent neurons and myotubes occurs but subsequent development of muscle spindles is impaired
• absence of muscle spindles
• synapses at neuromuscular junctions contain reduced numbers of acetylcholine receptors
• mutants exhibit reduced synaptic transmission at neuromuscular junctions; mepc amplitudes are reduced by about 15% compared to wild-type





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last database update
04/23/2024
MGI 6.23
The Jackson Laboratory