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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Brca1tm1Thl
targeted mutation 1, Thomas Ludwig
MGI:3790741
Summary 7 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Brca1tm1Thl/Brca1tm1Thl involves: 129 * C57BL/6J MGI:3805030
cn2
Brca1tm1Thl/Brca1tm1Thl
Waptm1(cre)Arge/0
involves: 129S1/Sv * C57BL/6J MGI:3805033
cn3
Brca1tm1Thl/Brca1tm2Rjbr
Krastm4Tyj/Kras+
Trp53tm1Thl/Trp53tm1Thl
Tg(Pdx1-cre)6Tuv/0
involves: 129S4/SvJae * C57BL/6 * FVB/N MGI:5494465
cn4
Brca1tm1Thl/Brca1tm3.1Rjbr
Krastm4Tyj/Kras+
Trp53tm1Thl/Trp53tm1Thl
Tg(Pdx1-cre)6Tuv/0
involves: 129S4/SvJae * C57BL/6 * FVB/N MGI:5494462
cn5
Brca1tm1Thl/Brca1tm1Thl
Krastm4Tyj/Kras+
Trp53tm1Thl/Trp53tm1Thl
Tg(Pdx1-cre)6Tuv/0
involves: 129S4/SvJae * C57BL/6 * FVB/N MGI:5494464
cn6
Brca1tm1Arge/Brca1tm1Thl
Waptm1(cre)Arge/0
involves: 129S/SvEv * 129S1/Sv * C57BL/6J MGI:3805032
cn7
Bard1tm2Thl/Bard1tm2Thl
Brca1tm1Thl/Brca1tm1Thl
Waptm1(cre)Arge/0
involves: 129/Sv * 129S1/Sv * C57BL/6J MGI:3805035


Genotype
MGI:3805030
hm1
Allelic
Composition
Brca1tm1Thl/Brca1tm1Thl
Genetic
Background
involves: 129 * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Thl mutation (1 available); any Brca1 mutation (113 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice are healthy, fertile, and have a normal lifespan




Genotype
MGI:3805033
cn2
Allelic
Composition
Brca1tm1Thl/Brca1tm1Thl
Waptm1(cre)Arge/0
Genetic
Background
involves: 129S1/Sv * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Thl mutation (1 available); any Brca1 mutation (113 available)
Waptm1(cre)Arge mutation (0 available); any Wap mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 512 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

integument
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 512 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

endocrine/exocrine glands
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 512 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:134977




Genotype
MGI:5494465
cn3
Allelic
Composition
Brca1tm1Thl/Brca1tm2Rjbr
Krastm4Tyj/Kras+
Trp53tm1Thl/Trp53tm1Thl
Tg(Pdx1-cre)6Tuv/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Thl mutation (1 available); any Brca1 mutation (113 available)
Brca1tm2Rjbr mutation (1 available); any Brca1 mutation (113 available)
Krastm4Tyj mutation (9 available); any Kras mutation (76 available)
Tg(Pdx1-cre)6Tuv mutation (3 available)
Trp53tm1Thl mutation (0 available); any Trp53 mutation (232 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 45 days compared with 68 days in Krastm4Tyj/Kras+ Tg(Ipf1-cre)6Tuv Trp53tm1Thl/Trp53tm1Thl
• however, latency is similar to in Brca1tm1Thl/Brca1tm1Thl Krastm4Tyj/Kras+ Tg(Ipf1-cre)6Tuv Trp53tm1Thl/Trp53tm1Thl




Genotype
MGI:5494462
cn4
Allelic
Composition
Brca1tm1Thl/Brca1tm3.1Rjbr
Krastm4Tyj/Kras+
Trp53tm1Thl/Trp53tm1Thl
Tg(Pdx1-cre)6Tuv/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Thl mutation (1 available); any Brca1 mutation (113 available)
Brca1tm3.1Rjbr mutation (1 available); any Brca1 mutation (113 available)
Krastm4Tyj mutation (9 available); any Kras mutation (76 available)
Tg(Pdx1-cre)6Tuv mutation (3 available)
Trp53tm1Thl mutation (0 available); any Trp53 mutation (232 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• as in Krastm4Tyj/Kras+ Tg(Ipf1-cre)6Tuv Trp53tm1Thl/Trp53tm1Thlmice succumb to pancreatic tumors with an average latency of 65 days




Genotype
MGI:5494464
cn5
Allelic
Composition
Brca1tm1Thl/Brca1tm1Thl
Krastm4Tyj/Kras+
Trp53tm1Thl/Trp53tm1Thl
Tg(Pdx1-cre)6Tuv/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Thl mutation (1 available); any Brca1 mutation (113 available)
Krastm4Tyj mutation (9 available); any Kras mutation (76 available)
Tg(Pdx1-cre)6Tuv mutation (3 available)
Trp53tm1Thl mutation (0 available); any Trp53 mutation (232 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice succumb to pancreatic tumors with an average latency of 68 days




Genotype
MGI:3805032
cn6
Allelic
Composition
Brca1tm1Arge/Brca1tm1Thl
Waptm1(cre)Arge/0
Genetic
Background
involves: 129S/SvEv * 129S1/Sv * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Arge mutation (0 available); any Brca1 mutation (113 available)
Brca1tm1Thl mutation (1 available); any Brca1 mutation (113 available)
Waptm1(cre)Arge mutation (0 available); any Wap mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 512 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

integument
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 512 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

endocrine/exocrine glands
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 512 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:134977




Genotype
MGI:3805035
cn7
Allelic
Composition
Bard1tm2Thl/Bard1tm2Thl
Brca1tm1Thl/Brca1tm1Thl
Waptm1(cre)Arge/0
Genetic
Background
involves: 129/Sv * 129S1/Sv * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bard1tm2Thl mutation (0 available); any Bard1 mutation (54 available)
Brca1tm1Thl mutation (1 available); any Brca1 mutation (113 available)
Waptm1(cre)Arge mutation (0 available); any Wap mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 473 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

integument
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 473 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

endocrine/exocrine glands
• almost all female mice who have been pregnant at least once develop mammary tumors with a mean tumor free latency of 473 days
• majority of tumors are solid, do not express the estrogen receptor but are CK14 positive
• the majority of the tumors are Dunn type B adenocarcinomas with a medullary growth pattern that display variable necrosis and lack peripheral lymphocytic infiltrate
• carnicomas contain pleomorphic cells with numerous mitotic figures such as lagging chromosomes
• neoplasms often invade in a broad front and push towards the underlying pectoral muscle
• a small minority of tumors have sqaumous characteristics
• pre-cancerous neoplasia are also evident throughout the mammary gland

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:134977





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last database update
05/14/2024
MGI 6.23
The Jackson Laboratory