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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Brca1tm1Brn
targeted mutation 1, Anton Berns
MGI:3696057
Summary 10 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Brca1tm1Brn/Brca1tm1Brn involves: 129P2/OlaHsd MGI:3696695
cn2
Brca1tm1Brn/Brca1tm1Brn
Trp53tm1Brn/Trp53tm1Brn
involves: 129P2/OlaHsd MGI:3696696
cn3
Brca1tm1Brn/Brca1tm1Brn
Tg(Krt18-EGFP,-TAg121)36Ysng/0
Trp53tm1Brn/Trp53tm2Tyj
involves: 129P2/OlaHsd * 129S4/SvJae * C57BL/6 * DBA/2 * FVB/N MGI:5617496
cn4
Brca1tm1Brn/Brca1tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * BALB/cJ * FVB/N MGI:3762188
cn5
Brca1tm1Brn/Brca1tm1Brn
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * BALB/cJ * FVB/N MGI:3762189
cn6
Brca1tm1Brn/Brca1+
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * BALB/cJ * FVB/N MGI:3762186
cn7
Brca1tm1Brn/Brca1tm1Brn
Trp53tm1Brn/Trp53+
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * BALB/cJ * FVB/N MGI:3762187
cn8
Brca1tm1Brn/Brca1tm1Brn
Tg(Krt18-EGFP,-TAg121)36Ysng/0
Trp53tm1Brn/Trp53tm1Brn
involves: 129P2/OlaHsd * C57BL/6 * DBA/2 * FVB/N MGI:5617499
cn9
Brca1tm1Brn/Brca1tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * C57BL/6J * FVB/N MGI:5307257
cn10
Brca1tm1Brn/Brca1tm1.1Jjon
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * C57BL/6J * FVB/N MGI:5307256


Genotype
MGI:3696695
cn1
Allelic
Composition
Brca1tm1Brn/Brca1tm1Brn
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• after adenoviral cre infection, OSE cells in culture show significantly higher sensitivity to cisplatin treatment compared to control cells (47.3% remain ater 48 hours compared to 66.2% of control cells remaining)
• cultured cre-infected ovarian surface epithelium (OSE) cells show slower growth than GFP-injected cells at 96 and 120 hours post injection; at 120 hours, cell numbers are decreased by 40% compared to controls

endocrine/exocrine glands
• after adenoviral-cre-mediated recombination in the ovarian surface epithelium, significantly greater morphological changes are observed compared to controls receiving adenoviral GFP injection
• there a 4-fold more epithelial invaginations in cre-injected ovaries than in GFP-injected controls at 240 days post-injection

reproductive system
• after adenoviral-cre-mediated recombination in the ovarian surface epithelium, significantly greater morphological changes are observed compared to controls receiving adenoviral GFP injection
• there a 4-fold more epithelial invaginations in cre-injected ovaries than in GFP-injected controls at 240 days post-injection




Genotype
MGI:3696696
cn2
Allelic
Composition
Brca1tm1Brn/Brca1tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• after adenoviral cre treatment, double mutant OSE cells show significantly enhanced proliferation compared to control cells




Genotype
MGI:5617496
cn3
Allelic
Composition
Brca1tm1Brn/Brca1tm1Brn
Tg(Krt18-EGFP,-TAg121)36Ysng/0
Trp53tm1Brn/Trp53tm2Tyj
Genetic
Background
involves: 129P2/OlaHsd * 129S4/SvJae * C57BL/6 * DBA/2 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Tg(Krt18-EGFP,-TAg121)36Ysng mutation (0 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
Trp53tm2Tyj mutation (4 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 70% of mice injected with a cre-expressing adenovirus (Ad-cre) under the bursa develop serous epithelial ovarian cancer pathology
• ovarian surface epithelium carcinomas that develop in mice intrabursally injected with Ad-cre show a range of morphologic patterns including papillary, micropapillary/filigree, microcystic, poorly differentiated adenocarcinoma, and solid/undifferentiated
• mice develop multifocal peritoneal carcinomatosis with tumor spread to all abdominal organs
• distant metastases are seen in the pleura of 87.5%, in the lung of 83% and in the liver of 46% of mutants intrabursally injected with Ad-cre that develop stage IV disease
• 2% of mice intrabursally injected with Ad-cre exhibit transformation of the oviduct epithelium, with lesions ranging from atypical hyperplasia, to carcinoma in situ to adenocarcinoma

reproductive system
• 70% of mice injected with a cre-expressing adenovirus (Ad-cre) under the bursa develop serous epithelial ovarian cancer pathology
• ovarian surface epithelium carcinomas that develop in mice intrabursally injected with Ad-cre show a range of morphologic patterns including papillary, micropapillary/filigree, microcystic, poorly differentiated adenocarcinoma, and solid/undifferentiated
• mice develop multifocal peritoneal carcinomatosis with tumor spread to all abdominal organs
• 2% of mice intrabursally injected with Ad-cre exhibit transformation of the oviduct epithelium, with lesions ranging from atypical hyperplasia, to carcinoma in situ to adenocarcinoma
• oviduct lesions are characterized by a glandular/acinar histology

homeostasis/metabolism
• ovaries in intrabursally Ad-cre injected mice show hemorrhagic or serous ascites

endocrine/exocrine glands
• 70% of mice injected with a cre-expressing adenovirus (Ad-cre) under the bursa develop serous epithelial ovarian cancer pathology
• ovarian surface epithelium carcinomas that develop in mice intrabursally injected with Ad-cre show a range of morphologic patterns including papillary, micropapillary/filigree, microcystic, poorly differentiated adenocarcinoma, and solid/undifferentiated
• mice develop multifocal peritoneal carcinomatosis with tumor spread to all abdominal organs

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
ovarian cancer DOID:2394 OMIM:167000
OMIM:607893
J:189304




Genotype
MGI:3762188
cn4
Allelic
Composition
Brca1tm1Brn/Brca1tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * BALB/cJ * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Tg(KRT14-cre)8Brn mutation (4 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice develop mammary gland with a latency of 213 days
• 80% of mice develop tumors compared to 63% of Trp53tm1Jjon/Trp53tm1Jjon Tg(KRT14-cre)8Jjon mice
• mice develop mammary types of carcinoma (91%), biphasic carcinoma that is poorly defined (3%) and biphasic carcinoma that is well defined (6%)

integument
• mice develop mammary gland with a latency of 213 days
• 80% of mice develop tumors compared to 63% of Trp53tm1Jjon/Trp53tm1Jjon Tg(KRT14-cre)8Jjon mice
• mice develop mammary types of carcinoma (91%), biphasic carcinoma that is poorly defined (3%) and biphasic carcinoma that is well defined (6%)

endocrine/exocrine glands
• mice develop mammary gland with a latency of 213 days
• 80% of mice develop tumors compared to 63% of Trp53tm1Jjon/Trp53tm1Jjon Tg(KRT14-cre)8Jjon mice
• mice develop mammary types of carcinoma (91%), biphasic carcinoma that is poorly defined (3%) and biphasic carcinoma that is well defined (6%)

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:126551




Genotype
MGI:3762189
cn5
Allelic
Composition
Brca1tm1Brn/Brca1tm1Brn
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * BALB/cJ * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Tg(KRT14-cre)8Brn mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
N
• mice fail to develop mammary gland tumors over 800 days of observation




Genotype
MGI:3762186
cn6
Allelic
Composition
Brca1tm1Brn/Brca1+
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * BALB/cJ * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Tg(KRT14-cre)8Brn mutation (4 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice develop mammary gland with a latency of 332 days

integument
• mice develop mammary gland with a latency of 332 days

endocrine/exocrine glands
• mice develop mammary gland with a latency of 332 days

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:126551




Genotype
MGI:3762187
cn7
Allelic
Composition
Brca1tm1Brn/Brca1tm1Brn
Trp53tm1Brn/Trp53+
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * BALB/cJ * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Tg(KRT14-cre)8Brn mutation (4 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice develop mammary gland with a latency of 407 days

integument
• mice develop mammary gland with a latency of 407 days

endocrine/exocrine glands
• mice develop mammary gland with a latency of 407 days

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:126551




Genotype
MGI:5617499
cn8
Allelic
Composition
Brca1tm1Brn/Brca1tm1Brn
Tg(Krt18-EGFP,-TAg121)36Ysng/0
Trp53tm1Brn/Trp53tm1Brn
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * DBA/2 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Tg(Krt18-EGFP,-TAg121)36Ysng mutation (0 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 78% of mice injected with a cre-expressing adenovirus under the bursa develop serous epithelial ovarian cancer pathology

reproductive system
• 78% of mice injected with a cre-expressing adenovirus under the bursa develop serous epithelial ovarian cancer pathology

endocrine/exocrine glands
• 78% of mice injected with a cre-expressing adenovirus under the bursa develop serous epithelial ovarian cancer pathology

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
ovarian cancer DOID:2394 OMIM:167000
OMIM:607893
J:189304




Genotype
MGI:5307257
cn9
Allelic
Composition
Brca1tm1Brn/Brca1tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Tg(KRT14-cre)8Brn mutation (4 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• compared to KB1C61GP littermate controls
• most mammary tumors are poorly differentiated solid carcinomas
• a small percentage of tumors are classified as carcinosarcomas or lumen forming carcinomas
• compared to KB1C61GP littermate controls
• in transplanted tumors response to olaparib treatment is improved compared to KB1C61GP littermate controls and KP mice
• transplanted tumors never develop resistance to cisplatin unlike tumors from KP mice
• increased genomic instability in tumors compared to mice homozygous for Trp53tm1Brn and carrying Tg(KRT14-cre)8Brn (KP mice)
• median latency is 236 days compared to 197 days in littermate controls heterozygous for Brca1tm1Brn and Brca1tm1.1Jjon, homozygous for Trp53tm1Brn and carrying Tg(KRT14-cre)8Brn (KB1C61GP)

integument
• compared to KB1C61GP littermate controls
• most mammary tumors are poorly differentiated solid carcinomas
• a small percentage of tumors are classified as carcinosarcomas or lumen forming carcinomas
• compared to KB1C61GP littermate controls

endocrine/exocrine glands
• compared to KB1C61GP littermate controls
• most mammary tumors are poorly differentiated solid carcinomas
• a small percentage of tumors are classified as carcinosarcomas or lumen forming carcinomas

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:178595




Genotype
MGI:5307256
cn10
Allelic
Composition
Brca1tm1Brn/Brca1tm1.1Jjon
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca1tm1.1Jjon mutation (0 available); any Brca1 mutation (114 available)
Brca1tm1Brn mutation (2 available); any Brca1 mutation (114 available)
Tg(KRT14-cre)8Brn mutation (4 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• compared to KB1P littermate controls homozygous
• most mammary tumors are poorly differentiated solid carcinomas
• a small percentage of tumors are classified as carcinosarcomas or lumen forming carcinomas
• markedly lower incidence compared to KB1P littermate controls
• in transplanted tumors response to olaparib treatment is impaired compared to KB1P littermate controls but better than in KP mice
• transplanted tumors develop resistance to cisplatin and survival of transplanted mice is worse than that of mice transplanted with tumors from KB1P mice
• increased genomic instability in tumors compared to mice homozygous for Trp53tm1Brn and carrying Tg(KRT14-cre)8Brn (KP mice)
• median latency is 197 days compared to 236 days in littermate controls homozygous for Brca1tm1Brn Trp53tm1Brn and carrying Tg(KRT14-cre)8Brn (KB1P)
• however, no difference in the latency of mammary tumor development

integument
• compared to KB1P littermate controls homozygous
• most mammary tumors are poorly differentiated solid carcinomas
• a small percentage of tumors are classified as carcinosarcomas or lumen forming carcinomas
• markedly lower incidence compared to KB1P littermate controls

endocrine/exocrine glands
• compared to KB1P littermate controls homozygous
• most mammary tumors are poorly differentiated solid carcinomas
• a small percentage of tumors are classified as carcinosarcomas or lumen forming carcinomas

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:178595





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory