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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Bdnftm1Jae
targeted mutation 1, Rudolf Jaenisch
MGI:1857136
Summary 7 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Bdnftm1Jae/Bdnftm1Jae B6.129S4-Bdnftm1Jae MGI:3044435
hm2
Bdnftm1Jae/Bdnftm1Jae involves: 129S4/SvJae MGI:2175720
hm3
Bdnftm1Jae/Bdnftm1Jae involves: 129S4/SvJae * BALB/c MGI:3767567
ht4
Bdnftm1Jae/Bdnftm2(Ntf5)Jae involves: 129S4/SvJae MGI:3583671
cx5
Bdnftm1Jae/Bdnftm1Jae
Ntf5tm1Jae/Ntf5tm1Jae
involves: 129S4/SvJae MGI:3761003
cx6
Bdnftm1Jae/Bdnftm2(Ntf5)Jae
Ntrk2tm1Kln/Ntrk2tm1Kln
involves: 129S4/SvJae MGI:3583673
cx7
Bdnftm1Jae/Bdnf+
Omptm1(tTA)Gogo/Omp+
Tg(tetO-tetX,lacZ)2Gogo/?
involves: 129S4/SvJae * C57BL/6 MGI:3723444


Genotype
MGI:3044435
hm1
Allelic
Composition
Bdnftm1Jae/Bdnftm1Jae
Genetic
Background
B6.129S4-Bdnftm1Jae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bdnftm1Jae mutation (2 available); any Bdnf mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
taste/olfaction
• at P7 homozygous mice have 79% fewer vallate taste buds than wild-type mice

nervous system
• innervation of the fungiform papillae is reduced with a shortfall in the geniculate ganglion neurons that supply taste neurons to the fungiform papillae

craniofacial
• at P7 homozygous mice have 79% fewer vallate taste buds than wild-type mice

digestive/alimentary system
• at P7 homozygous mice have 79% fewer vallate taste buds than wild-type mice

growth/size/body
• at P7 homozygous mice have 79% fewer vallate taste buds than wild-type mice




Genotype
MGI:2175720
hm2
Allelic
Composition
Bdnftm1Jae/Bdnftm1Jae
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bdnftm1Jae mutation (2 available); any Bdnf mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most homozygotes die in the second postnatal week, with rare survivors achieving adult stages (J:17123)

behavior/neurological

growth/size/body
• loss of fungiform papillae is seen in 2 week old mutants and remaining papillae are smaller
• mice are reduced in size compared to control littermates

nervous system
N
• no differences are seen in the morphology of the central and peripheral nerve processes from the trigeminal, geniculate, petrose and nodose ganglia at E10.5-11.5
• at E12 and E14, neuron apoptosis is increased 143% and 155%, respectively, compared to in wild-type mice
• no nerve chalicies are found associated with type I hair cells of the vestibule
• approximately half of the neurons are lost from the mesencephalic trigeminal nucleus at P14-16
• loss of outer hair cell innervation in the apex, middle and basal turns of the cochlea
• innervation of the vestibular compartment of the inner ear is severely compromised (J:17123)
• only small fiber bundles enter the saccule, utricle and ampulla of the semicircular ducts compared to controls; the remaining fibers terminate in the connective tissue adjacent to the sensory epithelia of the saccule, utricle and cristae of the semicurcular ducts (J:17123)
• no nerve chalicies are found associated with type I hair cells of the vestibule (J:17123)
• ampullar cristae completely lack innervation (J:82462)
• the numbers of neurons in many sensory ganglia are reduced compared to controls (J:17123)
• the number of facial motor neurons and sympathetic superior cervical ganglion neurons is not different from controls (J:17123)
• significant loss of all sensory neuron types in the nodose-petrosal, geniculate and vestibular ganglia in homozygous mice (J:25566)
• no difference in the number of facial motor neurons is seen compared to controls (J:25566)
• loss of spiral ganglion neurons by 25% at P0 and 29% at P17 in the cochlea
• approximately half of the neurons are lost from the geniculate ganglion at E18.5 (J:25566)
• greater than half of the neurons are lost from the nodose-petrosal ganglion at E18.5
• approximately half of the neurons are lost from the trigeminal ganglion at P14-16
• approximately 65% of the neurons are lost from the nodose ganglion at P14-16 (J:17123)
• greater than half of the neurons are lost from the nodose-petrosal ganglion at E18.5 (J:25566)
• in co-cultures of wild-type vestibular ganglion neurons with mutant hair cells, very few (2 of 200) wild-type neurons contact a mutant hair cell and diameter of the nerve fiber is thinner and shows less branching on the surface of the mutant hair cell than seen in all wild-type cultures
• approximately 80% of the neurons are lost from the vestibular ganglion at P14-16 (J:17123)
• vestibular neurons appear atrophic (J:17123)
• approximately 75% of the neurons are lost from the vestibular ganglion at E18.5 (J:25566)
• mice exhibit a 43% loss of trigeminal neurons at birth
• approximately 30% of the neurons are lost from the L4 DRG at P14-16 (J:17123)

hearing/vestibular/ear
N
• despite abnormal innervation of the vestibular compartment, the structural integrity of the organ of Corti, macula of the saccula and utricle, and the cristae of the semicircular ducts appear similar to controls
• innervation of the cochlear inner and outer hair cells appears similar to controls
• mice respond to auditory stimuli
• no nerve chalicies are found associated with type I hair cells of the vestibule
• ampullar cristae completely lack innervation
• innervation of the vestibular compartment of the inner ear is severely compromised (J:17123)
• only small fiber bundles enter the saccule, utricle and ampulla of the semicircular ducts compared to controls; the remaining fibers terminate in the connective tissue adjacent to the sensory epithelia of the saccule, utricle and cristae of the semicurcular ducts (J:17123)
• no nerve chalicies are found associated with type I hair cells of the vestibule (J:17123)
• ampullar cristae completely lack innervation (J:82462)
• loss of hearing

digestive/alimentary system
• loss of fungiform papillae is seen in 2 week old mutants and remaining papillae are smaller

craniofacial
• loss of fungiform papillae is seen in 2 week old mutants and remaining papillae are smaller

cellular
• at E12 and E14, neuron apoptosis is increased 143% and 155%, respectively, compared to in wild-type mice




Genotype
MGI:3767567
hm3
Allelic
Composition
Bdnftm1Jae/Bdnftm1Jae
Genetic
Background
involves: 129S4/SvJae * BALB/c
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bdnftm1Jae mutation (2 available); any Bdnf mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• sympathetic neuron apoptosis is developmentally delayed
• cell death in culture following the withdrawal of NGF is delayed
• mice exhibit an increased in sympathetic neuron number (21 318+/-1 627 compared to 15 690+/-617 in wild-type mice) and size

cellular
• sympathetic neuron apoptosis is developmentally delayed
• cell death in culture following the withdrawal of NGF is delayed




Genotype
MGI:3583671
ht4
Allelic
Composition
Bdnftm1Jae/Bdnftm2(Ntf5)Jae
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bdnftm1Jae mutation (2 available); any Bdnf mutation (42 available)
Bdnftm2(Ntf5)Jae mutation (0 available); any Bdnf mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice are fertile and have a normal appearance




Genotype
MGI:3761003
cx5
Allelic
Composition
Bdnftm1Jae/Bdnftm1Jae
Ntf5tm1Jae/Ntf5tm1Jae
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bdnftm1Jae mutation (2 available); any Bdnf mutation (42 available)
Ntf5tm1Jae mutation (1 available); any Ntf5 mutation (12 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most homozygous mice die within 48 hours of birth, with only a few surviving up to 10 days of age

growth/size/body
• homozygous mice are the same size as controls at birth, but fail to grow thereafter

nervous system
• significant loss of all sensory neuron types in the trigeminal, vestibular, nodose-petrosal and geniculate ganglia in homozygous mice
• no statistical difference in the number of facial motor neurons is seen compared to controls
• approximately 95% of the neurons are lost from the geniculate ganglion at E18.5
• approximately 90% of the neurons are lost from the nodose-petrosal ganglion at E18.5
• approximately 30% of the neurons are lost from the trigeminal ganglion at E18.5
• approximately 90% of the neurons are lost from the nodose-petrosal ganglion at E18.5
• approximately 80% of the neurons are lost from the vestibular ganglion at E18.5
• mice exhibit a 25% loss of trigeminal neurons at birth

behavior/neurological




Genotype
MGI:3583673
cx6
Allelic
Composition
Bdnftm1Jae/Bdnftm2(Ntf5)Jae
Ntrk2tm1Kln/Ntrk2tm1Kln
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bdnftm1Jae mutation (2 available); any Bdnf mutation (42 available)
Bdnftm2(Ntf5)Jae mutation (0 available); any Bdnf mutation (42 available)
Ntrk2tm1Kln mutation (0 available); any Ntrk2 mutation (66 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological

nervous system
• observed in the vestibular, nodose-petrosal and geniculate ganglia




Genotype
MGI:3723444
cx7
Allelic
Composition
Bdnftm1Jae/Bdnf+
Omptm1(tTA)Gogo/Omp+
Tg(tetO-tetX,lacZ)2Gogo/?
Genetic
Background
involves: 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bdnftm1Jae mutation (2 available); any Bdnf mutation (42 available)
Omptm1(tTA)Gogo mutation (1 available); any Omp mutation (27 available)
Tg(tetO-tetX,lacZ)2Gogo mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• following doxycycline treatment, terminal-arbor complexity of olfactory nerves is normal





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last database update
10/29/2024
MGI 6.24
The Jackson Laboratory