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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Brca2tm1Brn
targeted mutation 1, Anton Berns
MGI:2156556
Summary 19 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Brca2tm1Brn/Brca2tm1Brn involves: 129P2/OlaHsd * FVB/N MGI:3831426
cn2
Brca2tm1Brn/Brca2tm1Brn
Ptch1tm1Mps/Ptch1+
Trp53tm1Tyj/Trp53tm1Tyj
Tg(Nes-cre)1Kln/0
involves: 129 * C57BL/6 * SJL MGI:3831343
cn3
Brca2tm1Brn/Brca2tm1Brn
Ptch1tm1Mps/Ptch1+
Trp53tm1Tyj/Trp53+
Tg(Nes-cre)1Kln/0
involves: 129 * C57BL/6 * SJL MGI:3831342
cn4
Brca2tm1Brn/Brca2tm1Brn
Trp53bp1tm1Jc/Trp53bp1tm1Jc
Cd19tm1(cre)Cgn/Cd19+
involves: 129P2/OlaHsd MGI:5495980
cn5
Brca2tm1Brn/Brca2tm1Brn
Cd19tm1(cre)Cgn/Cd19+
involves: 129P2/OlaHsd MGI:5495979
cn6
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Tyj/Trp53tm1Tyj
Tg(Nes-cre)1Kln/0
involves: 129P2/OlaHsd * 129S2/SvPas * C57BL/6 * SJL MGI:3831341
cn7
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Tyj/Trp53+
Tg(Nes-cre)1Kln/0
involves: 129P2/OlaHsd * 129S2/SvPas * C57BL/6 * SJL MGI:3831340
cn8
Brca2tm1Brn/Brca2tm1Brn
Tg(Krt18-EGFP,-TAg121)36Ysng/0
Trp53tm1Brn/Trp53tm2Tyj
involves: 129P2/OlaHsd * 129S4/SvJae * C57BL/6 * DBA/2 * FVB/N MGI:5617497
cn9
Brca2tm1Brn/Brca2tm1Cam
Krastm4Tyj/Kras+
Trp53tm3Tyj/Trp53+
Tg(Pdx1-cre)6Tuv/0
involves: 129P2/OlaHsd * 129S/SvEv * 129S4/SvJae * C57BL/6 * FVB/N MGI:4940096
cn10
Brca2tm1Cam/Brca2tm1Brn
Krastm4Tyj/Kras+
Tg(Pdx1-cre)6Tuv/0
involves: 129P2/OlaHsd * 129S/SvEv * 129S4/SvJae * C57BL/6 * FVB/N MGI:4940102
cn11
Brca2tm1Cam/Brca2tm1Brn
Tg(Pdx1-cre)6Tuv/0
Trp53tm3Tyj/Trp53+
involves: 129P2/OlaHsd * 129S/SvEv * 129S4/SvJae * C57BL/6 * FVB/N MGI:4940104
cn12
Brca2tm1Cam/Brca2tm1Brn
Tg(Pdx1-cre)6Tuv/0
involves: 129P2/OlaHsd * 129S/SvEv * C57BL/6 * FVB/N MGI:4940106
cn13
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Brn/Trp53+
Tg(Pbsn-cre)4Prb/0
involves: 129P2/OlaHsd * C57BL/6 * DBA/2 MGI:4819194
cn14
Brca2tm1Brn/Brca2tm1Brn
Tg(Pbsn-cre)4Prb/0
involves: 129P2/OlaHsd * C57BL/6 * DBA/2 MGI:4819192
cn15
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Tg(Pbsn-cre)4Prb/0
involves: 129P2/OlaHsd * C57BL/6 * DBA/2 MGI:4819193
cn16
Brca2tm1Brn/Brca2tm1Brn
Tg(Nes-cre)1Kln/0
involves: 129P2/OlaHsd * C57BL/6 * SJL MGI:3831339
cn17
Brca2tm1Brn/Brca2+
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * FVB/N MGI:3831431
cn18
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * FVB/N MGI:3831430
cn19
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Brn/Trp53+
Tg(KRT14-cre)8Brn/0
involves: 129P2/OlaHsd * FVB/N MGI:3831432


Genotype
MGI:3831426
hm1
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Genetic
Background
involves: 129P2/OlaHsd * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice exhibit normal development and lifespan




Genotype
MGI:3831343
cn2
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Ptch1tm1Mps/Ptch1+
Trp53tm1Tyj/Trp53tm1Tyj
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129 * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Ptch1tm1Mps mutation (2 available); any Ptch1 mutation (115 available)
Tg(Nes-cre)1Kln mutation (4 available)
Trp53tm1Tyj mutation (12 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 100% of mice develop medulloblastoma beginning at 5 weeks

nervous system
• 100% of mice develop medulloblastoma beginning at 5 weeks




Genotype
MGI:3831342
cn3
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Ptch1tm1Mps/Ptch1+
Trp53tm1Tyj/Trp53+
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129 * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Ptch1tm1Mps mutation (2 available); any Ptch1 mutation (115 available)
Tg(Nes-cre)1Kln mutation (4 available)
Trp53tm1Tyj mutation (12 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 100% of mice develop medulloblastoma beginning at 10 weeks

nervous system
• 100% of mice develop medulloblastoma beginning at 10 weeks




Genotype
MGI:5495980
cn4
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Trp53bp1tm1Jc/Trp53bp1tm1Jc
Cd19tm1(cre)Cgn/Cd19+
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Cd19tm1(cre)Cgn mutation (11 available); any Cd19 mutation (60 available)
Trp53bp1tm1Jc mutation (1 available); any Trp53bp1 mutation (100 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• cells treated with PARP-inhibition exhibit increased chromosomal damage compared with cells from Brca2tm1Brn/Brca2tm1Brn Cd19tm1(cre)Cgn/Cd19tm1(cre)Cgn mice




Genotype
MGI:5495979
cn5
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Cd19tm1(cre)Cgn/Cd19+
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Cd19tm1(cre)Cgn mutation (11 available); any Cd19 mutation (60 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• cells treated with PARP-inhibition exhibit increased chromosomal damage compared with untreated cells




Genotype
MGI:3831341
cn6
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Tyj/Trp53tm1Tyj
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129P2/OlaHsd * 129S2/SvPas * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Tg(Nes-cre)1Kln mutation (4 available)
Trp53tm1Tyj mutation (12 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 87% of mice develop medulloblastoma beginning at 13 weeks

nervous system
• 87% of mice develop medulloblastoma beginning at 13 weeks

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
medulloblastoma DOID:0050902 OMIM:155255
J:144617




Genotype
MGI:3831340
cn7
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Tyj/Trp53+
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129P2/OlaHsd * 129S2/SvPas * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Tg(Nes-cre)1Kln mutation (4 available)
Trp53tm1Tyj mutation (12 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• tumors exhibit a loss of heterozygosity at the Trp53 gene
• 72% of mice develop medulloblastoma beginning at 21 weeks

nervous system
• 72% of mice develop medulloblastoma beginning at 21 weeks

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
medulloblastoma DOID:0050902 OMIM:155255
J:144617




Genotype
MGI:5617497
cn8
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
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:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 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
• 68% of mice injected with a cre-expressing adenovirus under the bursa develop serous epithelial ovarian cancer pathology

endocrine/exocrine glands
• 68% of mice injected with a cre-expressing adenovirus under the bursa develop serous epithelial ovarian cancer pathology

reproductive system
• 68% 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:4940096
cn9
Allelic
Composition
Brca2tm1Brn/Brca2tm1Cam
Krastm4Tyj/Kras+
Trp53tm3Tyj/Trp53+
Tg(Pdx1-cre)6Tuv/0
Genetic
Background
involves: 129P2/OlaHsd * 129S/SvEv * 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Brca2tm1Cam mutation (0 available); any Brca2 mutation (132 available)
Krastm4Tyj mutation (9 available); any Kras mutation (84 available)
Tg(Pdx1-cre)6Tuv mutation (3 available)
Trp53tm3Tyj mutation (3 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• about 18% of assessable tumor cases develop an acinar-cell carcinoma component of pancreatic tumors
• high penetrance (29 of 30 mutants) of pancreatic ductal adenocarcinomas

mortality/aging
• average survival time is 84 days, with a range of 48-110 days

endocrine/exocrine glands
• about 18% of assessable tumor cases develop an acinar-cell carcinoma component of pancreatic tumors
• high penetrance (29 of 30 mutants) of pancreatic ductal adenocarcinomas

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
pancreatic carcinoma DOID:4905 OMIM:260350
J:166678




Genotype
MGI:4940102
cn10
Allelic
Composition
Brca2tm1Cam/Brca2tm1Brn
Krastm4Tyj/Kras+
Tg(Pdx1-cre)6Tuv/0
Genetic
Background
involves: 129P2/OlaHsd * 129S/SvEv * 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Brca2tm1Cam mutation (0 available); any Brca2 mutation (132 available)
Krastm4Tyj mutation (9 available); any Kras mutation (84 available)
Tg(Pdx1-cre)6Tuv mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• pancreatic insufficiency; spectrum of anomalies are seen from isolated paucity of the islets of Langerhans to complete fibro-inflammatory or cystic degeneration of both the endocrine and exocrine pancreas

endocrine/exocrine glands
• pancreata from 6 day old mutants exhibits an increase in apoptotic cells compared to controls
• pancreatic insufficiency; spectrum of anomalies are seen from isolated paucity of the islets of Langerhans to complete fibro-inflammatory or cystic degeneration of both the endocrine and exocrine pancreas
• mutants not succumbing to pancreatic insufficiency later develop pancreatic ductal adenocarcinomas with a moderate latency and incomplete penetrance (6 of 32 mutants)

mortality/aging
• mutants exhibit shortened pancreatic ductal adenocarcinoma-free survival

neoplasm
• mutants not succumbing to pancreatic insufficiency later develop pancreatic ductal adenocarcinomas with a moderate latency and incomplete penetrance (6 of 32 mutants)

cellular
• pancreata from 6 day old mutants exhibits an increase in apoptotic cells compared to controls




Genotype
MGI:4940104
cn11
Allelic
Composition
Brca2tm1Cam/Brca2tm1Brn
Tg(Pdx1-cre)6Tuv/0
Trp53tm3Tyj/Trp53+
Genetic
Background
involves: 129P2/OlaHsd * 129S/SvEv * 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Brca2tm1Cam mutation (0 available); any Brca2 mutation (132 available)
Tg(Pdx1-cre)6Tuv mutation (3 available)
Trp53tm3Tyj mutation (3 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• pancreatic insufficiency is occasionally observed in mutants

endocrine/exocrine glands
• pancreatic insufficiency is occasionally observed in mutants

mortality/aging
• premature death before 600 days of age due to lymphoid malignancies and sarcomas

neoplasm
• mutants develop lymphoid malignancies




Genotype
MGI:4940106
cn12
Allelic
Composition
Brca2tm1Cam/Brca2tm1Brn
Tg(Pdx1-cre)6Tuv/0
Genetic
Background
involves: 129P2/OlaHsd * 129S/SvEv * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Brca2tm1Cam mutation (0 available); any Brca2 mutation (132 available)
Tg(Pdx1-cre)6Tuv mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• small fraction of mutants develop pancreatic insufficiency

endocrine/exocrine glands
• small fraction of mutants develop pancreatic insufficiency

mortality/aging
• premature death in the small fraction of mutants with pancreatic insufficiency




Genotype
MGI:4819194
cn13
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Brn/Trp53+
Tg(Pbsn-cre)4Prb/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Tg(Pbsn-cre)4Prb mutation (2 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

High-grade prostate intraepithelial neoplasia in Brca2tm1Brn/Brca2tm1Brn Tg(Pbsn-cre)4Prb/0 Trp53tm1Brn/Trp53tm1Brn and prostate hyperplasia and intraepithelial neoplasia in Brca2tm1Brn/Brca2tm1Brn Trp53tm1Brn/Trp53+ Tg(Pbsn-cre)4Prb/0 mice

neoplasm
• focal low grade PIN are seen at 10 - 14 months of age
• by 15 - 20 months of age both focal low grade and high grade PIN are seen
• the incidence of high grade PIN is increased in mutant mice homozygous for the Trp53 allele relative to mice heterozygous for the Trp53 allele
• levels of cell proliferation are 9 fold higher in PIN lesions

reproductive system
• focal hyperplasia is seen beginning at 10 -14 months of age
• focal low grade PIN are seen at 10 - 14 months of age
• by 15 - 20 months of age both focal low grade and high grade PIN are seen
• the incidence of high grade PIN is increased in mutant mice homozygous for the Trp53 allele relative to mice heterozygous for the Trp53 allele
• levels of cell proliferation are 9 fold higher in PIN lesions
• areas of hyperplasia are positive for markers of DNA damage
• 4 fold increase in apoptotic cells in PIN foci

endocrine/exocrine glands
• focal hyperplasia is seen beginning at 10 -14 months of age
• focal low grade PIN are seen at 10 - 14 months of age
• by 15 - 20 months of age both focal low grade and high grade PIN are seen
• the incidence of high grade PIN is increased in mutant mice homozygous for the Trp53 allele relative to mice heterozygous for the Trp53 allele
• levels of cell proliferation are 9 fold higher in PIN lesions
• areas of hyperplasia are positive for markers of DNA damage
• 4 fold increase in apoptotic cells in PIN foci




Genotype
MGI:4819192
cn14
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Tg(Pbsn-cre)4Prb/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Tg(Pbsn-cre)4Prb mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Prostate hyperplasia and low-grade prostate intraepithelial neoplasia in Brca2tm1Brn/Brca2tm1Brn Tg(Pbsn-cre)4Prb/0 mice

neoplasm
• hyperplasia and low grade PIN are seen all 4 lobes
• focal low grade PIN are seen in the lumen at 15 - 20 months of age
• low grade PIN lesions form characteristic tufting and cribiform patterns

reproductive system
• focal hyperplasia containing atypical cells is seen beginning at 10 -14 months of age
• hyperplasia and low grade PIN are seen all 4 lobes
• focal low grade PIN are seen in the lumen at 15 - 20 months of age
• low grade PIN lesions form characteristic tufting and cribiform patterns
• hyperplasia and low grade PIN are seen all 4 lobes
• areas of hyperplasia are positive for markers of DNA damage
• 3 fold increase in apoptotic cells in areas of hyperplasia and low grade PIN

endocrine/exocrine glands
• focal hyperplasia containing atypical cells is seen beginning at 10 -14 months of age
• hyperplasia and low grade PIN are seen all 4 lobes
• focal low grade PIN are seen in the lumen at 15 - 20 months of age
• low grade PIN lesions form characteristic tufting and cribiform patterns
• hyperplasia and low grade PIN are seen all 4 lobes
• areas of hyperplasia are positive for markers of DNA damage
• 3 fold increase in apoptotic cells in areas of hyperplasia and low grade PIN




Genotype
MGI:4819193
cn15
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Tg(Pbsn-cre)4Prb/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Tg(Pbsn-cre)4Prb mutation (2 available)
Trp53tm1Brn mutation (18 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

High-grade prostate intraepithelial neoplasia in Brca2tm1Brn/Brca2tm1Brn Tg(Pbsn-cre)4Prb/0 Trp53tm1Brn/Trp53tm1Brn and prostate hyperplasia and intraepithelial neoplasia in Brca2tm1Brn/Brca2tm1Brn Trp53tm1Brn/Trp53+ Tg(Pbsn-cre)4Prb/0 mice

neoplasm
• by 10 - 14 months of age both focal low grade and high grade PIN are seen
• the incidence of high grade PIN is increased in mutant mice homozygous for the Trp53 allele relative to mice heterozygous for the Trp53 allele
• frequently multiple ducts of each lobe have high grade PIN, which are present in proximal and distal regions of the prostate and consist of many atypical cells filling the lumen
• high grade PIN lesions are predominantly seen in the anterior and dorsal prostate
• levels of cell proliferation are 30 fold higher in PIN lesions
• high grade PIN lesions frequently contain large groups of basal cells some of which are rounder in shape and positioned near the lumen
• high grade lesions continue to proliferate post castration

reproductive system
• focal hyperplasia is seen beginning as early as 6 months of age
• by 10 - 14 months of age both focal low grade and high grade PIN are seen
• the incidence of high grade PIN is increased in mutant mice homozygous for the Trp53 allele relative to mice heterozygous for the Trp53 allele
• frequently multiple ducts of each lobe have high grade PIN, which are present in proximal and distal regions of the prostate and consist of many atypical cells filling the lumen
• high grade PIN lesions are predominantly seen in the anterior and dorsal prostate
• levels of cell proliferation are 30 fold higher in PIN lesions
• high grade PIN lesions frequently contain large groups of basal cells some of which are rounder in shape and positioned near the lumen
• high grade lesions continue to proliferate post castration
• areas of hyperplasia are positive for markers of DNA damage
• 20 fold increase in apoptotic cells in areas of high grade PIN

endocrine/exocrine glands
• focal hyperplasia is seen beginning as early as 6 months of age
• by 10 - 14 months of age both focal low grade and high grade PIN are seen
• the incidence of high grade PIN is increased in mutant mice homozygous for the Trp53 allele relative to mice heterozygous for the Trp53 allele
• frequently multiple ducts of each lobe have high grade PIN, which are present in proximal and distal regions of the prostate and consist of many atypical cells filling the lumen
• high grade PIN lesions are predominantly seen in the anterior and dorsal prostate
• levels of cell proliferation are 30 fold higher in PIN lesions
• high grade PIN lesions frequently contain large groups of basal cells some of which are rounder in shape and positioned near the lumen
• high grade lesions continue to proliferate post castration
• areas of hyperplasia are positive for markers of DNA damage
• 20 fold increase in apoptotic cells in areas of high grade PIN




Genotype
MGI:3831339
cn16
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 available)
Tg(Nes-cre)1Kln mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• compared to germ line deletions of this gene, mice exhibit no increase in apoptosis during neural development




Genotype
MGI:3831431
cn17
Allelic
Composition
Brca2tm1Brn/Brca2+
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 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 tumors with a short median latency period of 298 days
• tumors exhibit expansive growth pattern, a high nuclear grade, and a high mitotic index
• mice develop skin carcinomas

integument
• mice develop skin carcinomas

endocrine/exocrine glands




Genotype
MGI:3831430
cn18
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Brn/Trp53tm1Brn
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 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 tumors with a short median latency period of 181 days
• tumors exhibit expansive growth pattern, a high nuclear grade, and a high mitotic index
• mice develop skin carcinomas

integument
• mice develop skin carcinomas

endocrine/exocrine glands

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:73028




Genotype
MGI:3831432
cn19
Allelic
Composition
Brca2tm1Brn/Brca2tm1Brn
Trp53tm1Brn/Trp53+
Tg(KRT14-cre)8Brn/0
Genetic
Background
involves: 129P2/OlaHsd * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Brn mutation (5 available); any Brca2 mutation (132 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 tumors with a short median latency period of 360 days
• tumors exhibit expansive growth pattern, a high nuclear grade, and a high mitotic index
• mice develop skin carcinomas

integument
• mice develop skin carcinomas

endocrine/exocrine glands





Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory