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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(MMTV-Erbb2)NK1Mul
transgene insertion NK1, William Muller
MGI:3050871
Summary 12 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Ccnd1tm1Wbg/Ccnd1tm5.1Pisc
Tg(CAG-cre/Esr1*)5Amc/0
Tg(MMTV-Erbb2)NK1Mul/0
involves: 129S2/SvPas * C57BL/6 * CBA * FVB/N MGI:5468352
cx2
Akt3tm1Mbb/Akt3tm1Mbb
Tg(MMTV-Erbb2)NK1Mul/Tg(MMTV-Erbb2)NK1Mul
involves: 129 * C57BL/6 * FVB/N MGI:3804003
cx3
Akt2tm1.1Mbb/Akt2tm1.1Mbb
Tg(MMTV-Erbb2)NK1Mul/Tg(MMTV-Erbb2)NK1Mul
involves: 129 * C57BL/6 * FVB/N MGI:3804004
cx4
Akt1Gt1Pnt/Akt1Gt1Pnt
Tg(MMTV-Erbb2)NK1Mul/Tg(MMTV-Erbb2)NK1Mul
involves: 129 * C57BL/6 * FVB/N MGI:3804005
cx5
Esr1tm1Ksk/Esr1tm1Ksk
Tg(MMTV-Erbb2)NK1Mul/0
involves: 129P2/OlaHsd * C57BL/6J * FVB/N MGI:4438040
cx6
Ccnd1tm4Pisc/Ccnd1tm4Pisc
Tg(MMTV-Erbb2)NK1Mul/0
involves: 129S4/SvJae * C57BL/6 * FVB/N MGI:4421802
cx7
Ccnd1tm1Phin/Ccnd1tm1Phin
Tg(MMTV-Erbb2)NK1Mul/0
involves: 129S4/SvJae * C57BL/6 * FVB/N MGI:3614895
cx8
Cdc25atm1Kiyo/Cdc25a+
Tg(MMTV-Erbb2)NK1Mul/?
involves: 129/Sv * C57BL/6 * FVB/N MGI:3718003
tg9
Tg(MMTV-Erbb2)NK1Mul/Tg(MMTV-Erbb2)NK1Mul involves: 129 * C57BL/6 * FVB/N MGI:3804001
tg10
Tg(MMTV-Erbb2)NK1Mul/0 FVB/N-Tg(MMTV-Erbb2)NK1Mul MGI:5538583
tg11
Tg(MMTV-Erbb2)NK1Mul/0 involves: 129P2/OlaHsd * C57BL/6 * FVB/N MGI:4438041
tg12
Tg(MMTV-Erbb2)NK1Mul/0 involves: FVB/N MGI:3785797


Genotype
MGI:5468352
cn1
Allelic
Composition
Ccnd1tm1Wbg/Ccnd1tm5.1Pisc
Tg(CAG-cre/Esr1*)5Amc/0
Tg(MMTV-Erbb2)NK1Mul/0
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * CBA * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ccnd1tm1Wbg mutation (2 available); any Ccnd1 mutation (22 available)
Ccnd1tm5.1Pisc mutation (0 available); any Ccnd1 mutation (22 available)
Tg(CAG-cre/Esr1*)5Amc mutation (10 available)
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• tamoxifen-treatment halts cancer progression and lowers tumor burden with increased senescence of tumor cells compared to in control mice




Genotype
MGI:3804003
cx2
Allelic
Composition
Akt3tm1Mbb/Akt3tm1Mbb
Tg(MMTV-Erbb2)NK1Mul/Tg(MMTV-Erbb2)NK1Mul
Genetic
Background
involves: 129 * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Akt3tm1Mbb mutation (0 available); any Akt3 mutation (42 available)
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• female virgin mice develop mammary tumors by 54 weeks of age which is slightly but not significantly later than in mice carrying the transgene on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung occurs in some mice

integument
• female virgin mice develop mammary tumors by 54 weeks of age which is slightly but not significantly later than in mice carrying the transgene on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung occurs in some mice

endocrine/exocrine glands
• female virgin mice develop mammary tumors by 54 weeks of age which is slightly but not significantly later than in mice carrying the transgene on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung occurs in some mice




Genotype
MGI:3804004
cx3
Allelic
Composition
Akt2tm1.1Mbb/Akt2tm1.1Mbb
Tg(MMTV-Erbb2)NK1Mul/Tg(MMTV-Erbb2)NK1Mul
Genetic
Background
involves: 129 * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Akt2tm1.1Mbb mutation (2 available); any Akt2 mutation (53 available)
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• female virgin mice develop mammary tumors by 45 weeks of age which is significantly earlier than occurs in mice carrying the transgene on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung occurs in some mice

endocrine/exocrine glands
• female virgin mice develop mammary tumors by 45 weeks of age which is significantly earlier than occurs in mice carrying the transgene on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung occurs in some mice

integument
• female virgin mice develop mammary tumors by 45 weeks of age which is significantly earlier than occurs in mice carrying the transgene on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung occurs in some mice




Genotype
MGI:3804005
cx4
Allelic
Composition
Akt1Gt1Pnt/Akt1Gt1Pnt
Tg(MMTV-Erbb2)NK1Mul/Tg(MMTV-Erbb2)NK1Mul
Genetic
Background
involves: 129 * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Akt1Gt1Pnt mutation (0 available); any Akt1 mutation (34 available)
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 10% of female virgin mice develop mammary tumors by 60 weeks of age which is a much lower incidence than occurs in mice carrying the transgene on a wild-type background
• tumor growth in mammary glands is significantly slower than is found in transgenic mice on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung is slightly enhanced in these mice

integument
• 10% of female virgin mice develop mammary tumors by 60 weeks of age which is a much lower incidence than occurs in mice carrying the transgene on a wild-type background
• tumor growth in mammary glands is significantly slower than is found in transgenic mice on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung is slightly enhanced in these mice

endocrine/exocrine glands
• 10% of female virgin mice develop mammary tumors by 60 weeks of age which is a much lower incidence than occurs in mice carrying the transgene on a wild-type background
• tumor growth in mammary glands is significantly slower than is found in transgenic mice on a wild-type background
• intravascular metastasis of adenocarcinomas into the lung is slightly enhanced in these mice




Genotype
MGI:4438040
cx5
Allelic
Composition
Esr1tm1Ksk/Esr1tm1Ksk
Tg(MMTV-Erbb2)NK1Mul/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Esr1tm1Ksk mutation (2 available); any Esr1 mutation (68 available)
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice display 50% tumor incidence at 105 weeks of age compared to 52 weeks of age in transgenic mice wild-type for Esr1
• increasing progesterone levels accelerates tumor development

endocrine/exocrine glands
• rudimentary mammary gland that fails to develop beyond the prepubertal stage
• however, duct structure is not different from homozygous null mice not carrying the transgene

integument
• rudimentary mammary gland that fails to develop beyond the prepubertal stage
• however, duct structure is not different from homozygous null mice not carrying the transgene




Genotype
MGI:4421802
cx6
Allelic
Composition
Ccnd1tm4Pisc/Ccnd1tm4Pisc
Tg(MMTV-Erbb2)NK1Mul/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ccnd1tm4Pisc mutation (0 available); any Ccnd1 mutation (22 available)
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 50% of mice develop tumors by about 45 weeks, same rate of occurrence as transgene alone

endocrine/exocrine glands
• 50% of mice develop tumors by about 45 weeks, same rate of occurrence as transgene alone

integument
• 50% of mice develop tumors by about 45 weeks, same rate of occurrence as transgene alone




Genotype
MGI:3614895
cx7
Allelic
Composition
Ccnd1tm1Phin/Ccnd1tm1Phin
Tg(MMTV-Erbb2)NK1Mul/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ccnd1tm1Phin mutation (0 available); any Ccnd1 mutation (22 available)
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• resistant to Erbb2-induced breast cancers

integument
• resistant to Erbb2-induced breast cancers

endocrine/exocrine glands
• resistant to Erbb2-induced breast cancers




Genotype
MGI:3718003
cx8
Allelic
Composition
Cdc25atm1Kiyo/Cdc25a+
Tg(MMTV-Erbb2)NK1Mul/?
Genetic
Background
involves: 129/Sv * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cdc25atm1Kiyo mutation (0 available); any Cdc25a mutation (34 available)
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice develop tumors at a latency of 32 weeks compared to 23 weeks in Tg(MMTV-Erbb2)NK1Mul transgenic mice
• mice do not develop hyperplastic nodules in mammary glands as do Tg(MMTV-Erbb2)NK1Mul transgenic mice

cellular
• fewer cells are in S-phase and proliferation is decreased compared to in Tg(MMTV-Erbb2)NK1Mul transgenic mice




Genotype
MGI:3804001
tg9
Allelic
Composition
Tg(MMTV-Erbb2)NK1Mul/Tg(MMTV-Erbb2)NK1Mul
Genetic
Background
involves: 129 * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• all female virgin mice develop cancer tumors in the breast by 45 weeks of age

endocrine/exocrine glands
• all female virgin mice develop cancer tumors in the breast by 45 weeks of age

integument
• all female virgin mice develop cancer tumors in the breast by 45 weeks of age




Genotype
MGI:5538583
tg10
Allelic
Composition
Tg(MMTV-Erbb2)NK1Mul/0
Genetic
Background
FVB/N-Tg(MMTV-Erbb2)NK1Mul
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• about 20% of mutants develop mammary tumors by the 25th week of age, and by the 30th week, tumor incidence increases to 83%
• high dose of flaxseed oil (with a an omega6:omega3 fatty acid ratio of about 1) results in some delay in the growth of mammary tumors, however low and mid doses with omega6:omega3 ratios of 7.7 and 3.1 enhance tumor development
• melatonin treatment delays the appearance of palpable tumors
• combination of both flaxseed oil and melatonin results in a slight delay of tumor development, similar that seen with melatonin only

integument
• about 20% of mutants develop mammary tumors by the 25th week of age, and by the 30th week, tumor incidence increases to 83%
• high dose of flaxseed oil (with a an omega6:omega3 fatty acid ratio of about 1) results in some delay in the growth of mammary tumors, however low and mid doses with omega6:omega3 ratios of 7.7 and 3.1 enhance tumor development
• melatonin treatment delays the appearance of palpable tumors
• combination of both flaxseed oil and melatonin results in a slight delay of tumor development, similar that seen with melatonin only

endocrine/exocrine glands
• about 20% of mutants develop mammary tumors by the 25th week of age, and by the 30th week, tumor incidence increases to 83%
• high dose of flaxseed oil (with a an omega6:omega3 fatty acid ratio of about 1) results in some delay in the growth of mammary tumors, however low and mid doses with omega6:omega3 ratios of 7.7 and 3.1 enhance tumor development
• melatonin treatment delays the appearance of palpable tumors
• combination of both flaxseed oil and melatonin results in a slight delay of tumor development, similar that seen with melatonin only

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:67457




Genotype
MGI:4438041
tg11
Allelic
Composition
Tg(MMTV-Erbb2)NK1Mul/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• Background Sensitivity: mice display 50% tumor incidence at 52 weeks of age compared to 25 weeks of age in mice on an FVB/N background
• mice ovariectomized at 18-20 days of age, but not those ovariectomized at 16-20 weeks of age, display a further delay in tumor onset (50% incidence at 62 weeks of age)
• breeding females accelerates tumor development (50% incidence at 32 weeks of age)

reproductive system
N
• unlike in previous reports, mammary gland ductal structure is not different from controls prior to the onset of tumor formation

integument

endocrine/exocrine glands




Genotype
MGI:3785797
tg12
Allelic
Composition
Tg(MMTV-Erbb2)NK1Mul/0
Genetic
Background
involves: FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(MMTV-Erbb2)NK1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• female mice exhibit diffuse, polyclonal tumor masses
• tumor morphogenesis corresponds to transgene expression
• tumors are more sparsely distributed than in other lines of the transgene

integument
• female mice exhibit diffuse, polyclonal tumor masses
• tumor morphogenesis corresponds to transgene expression
• tumors are more sparsely distributed than in other lines of the transgene

endocrine/exocrine glands
• female mice exhibit diffuse, polyclonal tumor masses
• tumor morphogenesis corresponds to transgene expression
• tumors are more sparsely distributed than in other lines of the transgene





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