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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ntn1Gt(ST629)Byg
gene trap ST629, BayGenomics
MGI:1927548
Summary 7 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg B6.129P2-Ntn1Gt(ST629)Byg MGI:3665465
hm2
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg involves: 129P2/OlaHsd MGI:3665452
hm3
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg involves: 129P2/OlaHsd * C57BL/6J MGI:2447201
hm4
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg involves: 129P2/OlaHsd * CD-1 MGI:2175184
cx5
Lrig3Gt(LST016)Byg/Lrig3Gt(LST016)Byg
Ntn1Gt(ST629)Byg/Ntn1+
B6.129P2-Lrig3Gt(LST016)Byg Ntn1Gt(ST629)Byg MGI:3829408
cx6
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg
Slit2tm1Matl/Slit2tm1Matl
involves: 129P2/OlaHsd * 129S2/SvPas MGI:5522645
cx7
En1tm1Gld/En1+
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg
involves: 129P2/OlaHsd * 129S/SvEv * C57BL/6 MGI:3839924


Genotype
MGI:3665465
hm1
Allelic
Composition
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg
Genetic
Background
B6.129P2-Ntn1Gt(ST629)Byg
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ntn1Gt(ST629)Byg mutation (1 available); any Ntn1 mutation (107 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• no trochlear nerve abnormalities are detected at E11.5 and diaphragm innervation is similar to wild-type at E18.5

hearing/vestibular/ear
N
• mice exhibit normal inner ear formation




Genotype
MGI:3665452
hm2
Allelic
Composition
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ntn1Gt(ST629)Byg mutation (1 available); any Ntn1 mutation (107 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

nervous system
N
• no changes in apoptosis in the cervical spinal cord, brainstem or other regions of the nervous system are observed compared to wild-type

endocrine/exocrine glands
• terminal end buds of mammary gland explants are abnormal with detached cap cells and increased subcapsular space
• detached cap cell are often found in the subcapsular space and breaks are seen in the basal lamina
• terminal end buds at the leading edge of the array are most severely affected
• a 17-fold increase in apoptosis is seen in detached cap cells
• growth of explants is slower compared to wild-type

integument
• terminal end buds of mammary gland explants are abnormal with detached cap cells and increased subcapsular space
• detached cap cell are often found in the subcapsular space and breaks are seen in the basal lamina
• terminal end buds at the leading edge of the array are most severely affected
• a 17-fold increase in apoptosis is seen in detached cap cells
• growth of explants is slower compared to wild-type




Genotype
MGI:2447201
hm3
Allelic
Composition
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ntn1Gt(ST629)Byg mutation (1 available); any Ntn1 mutation (107 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• reduced pyramidal decussation
• aberrant corticospinal tract axonal migrations
• abnormal dorsal funiculus of the spinal cord




Genotype
MGI:2175184
hm4
Allelic
Composition
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg
Genetic
Background
involves: 129P2/OlaHsd * CD-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ntn1Gt(ST629)Byg mutation (1 available); any Ntn1 mutation (107 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• within a few days of birth

behavior/neurological
• failure to suckle, milk never found in stomach
• newborns unable to move forelimbs indepently, results in a paddling effect

nervous system
• abnormal trajectory of commissural axons; however, normal trajectory of motor neurons and trochlear axons
• absent pontine nuclei




Genotype
MGI:3829408
cx5
Allelic
Composition
Lrig3Gt(LST016)Byg/Lrig3Gt(LST016)Byg
Ntn1Gt(ST629)Byg/Ntn1+
Genetic
Background
B6.129P2-Lrig3Gt(LST016)Byg Ntn1Gt(ST629)Byg
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lrig3Gt(LST016)Byg mutation (1 available); any Lrig3 mutation (64 available)
Ntn1Gt(ST629)Byg mutation (1 available); any Ntn1 mutation (107 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hearing/vestibular/ear
N
• unlike Lrig3Gt(LST016)Byg homozygotes, mice exhibit normal inner ear formation

behavior/neurological
N
• unlike Lrig3Gt(LST016)Byg homozygotes, mice do not exhibit circling




Genotype
MGI:5522645
cx6
Allelic
Composition
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg
Slit2tm1Matl/Slit2tm1Matl
Genetic
Background
involves: 129P2/OlaHsd * 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ntn1Gt(ST629)Byg mutation (1 available); any Ntn1 mutation (107 available)
Slit2tm1Matl mutation (2 available); any Slit2 mutation (88 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• severe defects in adhesion are seen in the mammary gland ducts
• in culture myoepithelial cells are impaired in their ability to adhere to luminal epithelial cells

endocrine/exocrine glands
• between the luminal epithelial cells and the myoepithelial cells
• end buds formed by transplanted mammary analage display subcapsular space, dissociated cap cells, cap cell layers devoid of underlying luminal epithelial cells, regions of disrupted cap cells, and regions of invaginated cap cell layers
• breaks in the basal lamina are seen and severe adhesion defects are detected

integument
• end buds formed by transplanted mammary analage display subcapsular space, dissociated cap cells, cap cell layers devoid of underlying luminal epithelial cells, regions of disrupted cap cells, and regions of invaginated cap cell layers
• breaks in the basal lamina are seen and severe adhesion defects are detected
• between the luminal epithelial cells and the myoepithelial cells




Genotype
MGI:3839924
cx7
Allelic
Composition
En1tm1Gld/En1+
Ntn1Gt(ST629)Byg/Ntn1Gt(ST629)Byg
Genetic
Background
involves: 129P2/OlaHsd * 129S/SvEv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
En1tm1Gld mutation (0 available); any En1 mutation (34 available)
Ntn1Gt(ST629)Byg mutation (1 available); any Ntn1 mutation (107 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• at E11 the majority of En1 expressing neuron ventrally projecting axons are either truncated or turn rostrally before reaching the ventrolateral funiculus
• at E11 the majority of En1 expressing neuron ventrally projecting axons are either truncated or turn rostrally before reaching the ventrolateral funiculus

cellular
• at E11 the majority of En1 expressing neuron ventrally projecting axons are either truncated or turn rostrally before reaching the ventrolateral funiculus
• at E11 the majority of En1 expressing neuron ventrally projecting axons are either truncated or turn rostrally before reaching the ventrolateral funiculus





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory