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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
MtdhGt(XB780)Byg
gene trap XB780, BayGenomics
MGI:4124379
Summary 6 genotypes


Genotype
MGI:5649037
hm1
Allelic
Composition
MtdhGt(XB780)Byg/MtdhGt(XB780)Byg
Genetic
Background
FVB.129P2-MtdhGt(XB780)Byg
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
MtdhGt(XB780)Byg mutation (0 available); any Mtdh mutation (32 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• increased time of tumor free survival following treatment with medroxyprogesterone acetate (MPA) and 7, 12-dimethylbenzanthracene (DMBA)

neoplasm
• decreased mammary tumor incidence following treatment with medroxyprogesterone acetate (MPA) and 7, 12-dimethylbenzanthracene (DMBA)

endocrine/exocrine glands
• transient delay in ductal outgrowth from 3 to 5 weeks of age
• however, no significant differences are detected at later time points or during pregnancy and lactation

reproductive system

homeostasis/metabolism
• increased time of tumor free survival following treatment with medroxyprogesterone acetate (MPA) and 7, 12-dimethylbenzanthracene (DMBA)
• decreased mammary tumor incidence following treatment with medroxyprogesterone acetate (MPA) and 7, 12-dimethylbenzanthracene (DMBA)

integument
• transient delay in ductal outgrowth from 3 to 5 weeks of age
• however, no significant differences are detected at later time points or during pregnancy and lactation




Genotype
MGI:5661728
cx2
Allelic
Composition
MtdhGt(XB780)Byg/MtdhGt(XB780)Byg
Tg(MMTVneu)202Mul/0
Genetic
Background
FVB.Cg-MtdhGt(XB780)Byg Tg(MMTVneu)202Mul
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
MtdhGt(XB780)Byg mutation (0 available); any Mtdh mutation (32 available)
Tg(MMTVneu)202Mul mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• by 300 days of age only 60% of mice develop tumors while almost all transgenic mice wild-type for Mtdh have tumors by this age
• by 18 months of age, 30% of mice are tumor free
• lung metastasis are severely reduced
• by 300 days of age only 60% of mice develop tumors while almost all transgenic mice wild-type for Mtdh have tumors by this age
• by 18 months of age, 30% of mice are tumor free

integument
• by 300 days of age only 60% of mice develop tumors while almost all transgenic mice wild-type for Mtdh have tumors by this age
• by 18 months of age, 30% of mice are tumor free
• only 20% of mice are mildly hyperplastic while 100% of transgenic mice wild-type for Mtdh display hyperplasia at 6 months of age

endocrine/exocrine glands
• by 300 days of age only 60% of mice develop tumors while almost all transgenic mice wild-type for Mtdh have tumors by this age
• by 18 months of age, 30% of mice are tumor free
• only 20% of mice are mildly hyperplastic while 100% of transgenic mice wild-type for Mtdh display hyperplasia at 6 months of age




Genotype
MGI:5649039
cx3
Allelic
Composition
MtdhGt(XB780)Byg/MtdhGt(XB780)Byg
Tg(MMTV-PyVT)634Mul/0
Genetic
Background
FVB.Cg-MtdhGt(XB780)Byg Tg(MMTV-PyVT)634Mul
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
MtdhGt(XB780)Byg mutation (0 available); any Mtdh mutation (32 available)
Tg(MMTV-PyVT)634Mul mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• total tumor burden is reduced to 10% of transgenic mice wild-type for Mtdh
• isolated mammary epithelial cells from preneoplastic glands contain fewer tumor initiating cells
• mice have fewer and smaller metastatic nodules compared to transgenic mice wild-type for Mtdh
• mammary tumors are detected by 50 days of age and 50% of mice have tumors after 80 days of age, later than in transgenic mice wild-type for Mtdh

endocrine/exocrine glands
• total tumor burden is reduced to 10% of transgenic mice wild-type for Mtdh
• display fewer and smaller hyperplastic foci at 4 weeks of age compared to transgenic mice wild-type for Mtdh

integument
• total tumor burden is reduced to 10% of transgenic mice wild-type for Mtdh
• display fewer and smaller hyperplastic foci at 4 weeks of age compared to transgenic mice wild-type for Mtdh




Genotype
MGI:5649043
cx4
Allelic
Composition
MtdhGt(XB780)Byg/Mtdh+
Tg(MMTV-PyVT)634Mul/0
Genetic
Background
FVB.Cg-MtdhGt(XB780)Byg Tg(MMTV-PyVT)634Mul
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
MtdhGt(XB780)Byg mutation (0 available); any Mtdh mutation (32 available)
Tg(MMTV-PyVT)634Mul mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• total tumor burden is reduced to 54% of transgenic mice wild-type for Mtdh

integument
• total tumor burden is reduced to 54% of transgenic mice wild-type for Mtdh

endocrine/exocrine glands
• total tumor burden is reduced to 54% of transgenic mice wild-type for Mtdh




Genotype
MGI:5649041
cx5
Allelic
Composition
MtdhGt(XB780)Byg/MtdhGt(XB780)Byg
Tg(Wnt1)1Hev/0
Genetic
Background
FVB.Cg-MtdhGt(XB780)Byg Tg(Wnt1)1Hev
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
MtdhGt(XB780)Byg mutation (0 available); any Mtdh mutation (32 available)
Tg(Wnt1)1Hev mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• no tumors are detected in 62% of mice at 300 days of age unlike in transgenic mice wild-type for Mtdh
• the number of tumors in mice with tumors is also reduced compared to transgenic mice wild-type for Mtdh
• no tumors are detected in 62% of mice at 300 days of age unlike in transgenic mice wild-type for Mtdh

integument
• no tumors are detected in 62% of mice at 300 days of age unlike in transgenic mice wild-type for Mtdh
• the number of tumors in mice with tumors is also reduced compared to transgenic mice wild-type for Mtdh
• display fewer and smaller hyperplastic foci at 4 weeks of age compared to transgenic mice wild-type for Mtdh

endocrine/exocrine glands
• no tumors are detected in 62% of mice at 300 days of age unlike in transgenic mice wild-type for Mtdh
• the number of tumors in mice with tumors is also reduced compared to transgenic mice wild-type for Mtdh
• display fewer and smaller hyperplastic foci at 4 weeks of age compared to transgenic mice wild-type for Mtdh




Genotype
MGI:5649042
cx6
Allelic
Composition
MtdhGt(XB780)Byg/Mtdh+
Tg(Wnt1)1Hev/0
Genetic
Background
FVB.Cg-MtdhGt(XB780)Byg Tg(Wnt1)1Hev
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
MtdhGt(XB780)Byg mutation (0 available); any Mtdh mutation (32 available)
Tg(Wnt1)1Hev mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• no tumors are detected in 35% of mice at 300 days of age unlike in transgenic mice wild-type for Mtdh
• the number of tumors in mice with tumors is also reduced compared to transgenic mice wild-type for Mtdh
• no tumors are detected in 35% of mice at 300 days of age unlike in transgenic mice wild-type for Mtdh

endocrine/exocrine glands
• no tumors are detected in 35% of mice at 300 days of age unlike in transgenic mice wild-type for Mtdh
• the number of tumors in mice with tumors is also reduced compared to transgenic mice wild-type for Mtdh

integument
• no tumors are detected in 35% of mice at 300 days of age unlike in transgenic mice wild-type for Mtdh
• the number of tumors in mice with tumors is also reduced compared to transgenic mice wild-type for Mtdh





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last database update
05/07/2024
MGI 6.23
The Jackson Laboratory