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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Trp53tm1.2Awbr
targeted mutation 1.2, AW Braithwaite
MGI:5014809
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Trp53tm1.2Awbr/Trp53tm1.2Awbr involves: C57BL/6 MGI:5014832
ht2
Trp53tm1.2Awbr/Trp53+ involves: C57BL/6 MGI:5014833


Genotype
MGI:5014832
hm1
Allelic
Composition
Trp53tm1.2Awbr/Trp53tm1.2Awbr
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Trp53tm1.2Awbr mutation (0 available); any Trp53 mutation (232 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• median survival is 111 days compared with 149 days for null homozygotes

digestive/alimentary system
• in the colon of some mice

neoplasm
• in the colon of some mice
• luteoma of pregnancy in some mice
• in the skin and colon of some mice
• diffuse large B cell lymphoma (DLBCL) B220+ in 32% of mice and B220- in 15% of mice
• 7% of mice exhibit DLBCL and sarcoma
• all mice exhibit malignant fibrous histiocytomas with angiogenesis
• in 17% of mice
• 7 of 9 mice exhibit metastasized osteosarcomas

reproductive system
• luteoma of pregnancy in some mice

skeleton
• in 17% of mice
• 7 of 9 mice exhibit metastasized osteosarcomas

immune system
• following gamma radiation, thymocytes fail to undergo apoptosis unlike wild-type cells
• prior to and after tumor development, mice exhibit lymphocyte aggregates in the liver and lungs unlike wild-type mice
• prominent in the colon prior to and after tumor development
• generalized inflammation in the liver, lung, and adipose tissue 30% of mice develop inflammation
• adipose tissue exhibits increased inflammatory response compared with wild-type mice
• lobulitis, hepatitis, or cirrhosis of the liver in 11% of mice

cellular
• irradiated cells fail to exhibit cell cycle arrest unlike similarly treated wild-type cells
• more untreated and irradiated cells are in S phase compared with wild-type cells
• irradiated cells fail to exhibit cell cycle arrest or increased apoptosis unlike similarly treated wild-type cells
• following gamma radiation, thymocytes fail to undergo apoptosis unlike wild-type cells
• in the bone marrow, splenic red pulp, thymic medulla, and the skin

integument
• fur development is delayed

homeostasis/metabolism

liver/biliary system
• lobulitis, hepatitis, or cirrhosis of the liver in 11% of mice
• prior to and after tumor development
• lobulitis, hepatitis, or cirrhosis of the liver in 11% of mice

nervous system
• in female mice

respiratory system

vision/eye

adipose tissue
• adipose tissue exhibits increased inflammatory response compared with wild-type mice

cardiovascular system
• 11% of mice exhibit vasculitis affecting the skin, heart, aorta, kidney, or seminal vesicles vessels unlike wild-type mice

hematopoietic system
• following gamma radiation, thymocytes fail to undergo apoptosis unlike wild-type cells
• bone marrow cells produce more granulocyte and macrophage colony forming units compared with wild-type cells
• prior to and after tumor development
• prior to and after tumor development, mice exhibit lymphocyte aggregates in the liver and lungs unlike wild-type mice

endocrine/exocrine glands
• following gamma radiation, thymocytes fail to undergo apoptosis unlike wild-type cells
• luteoma of pregnancy in some mice

growth/size/body

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
diffuse large B-cell lymphoma DOID:0050745 J:173271




Genotype
MGI:5014833
ht2
Allelic
Composition
Trp53tm1.2Awbr/Trp53+
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Trp53tm1.2Awbr mutation (0 available); any Trp53 mutation (232 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• median survival is 465 days compared with 589 days for null heterozygotes

neoplasm
• mice exhibit increased tumor incidence compared with null heterozygotes
• 17% of mice develop benign tumors (skin hamartoma, colon, hamartoma, lung adenoma, colon adenoma, and hibernoma)
• in the colon of some mice
• luteoma of pregnancy in some mice
• 4% of mice exhibit DLBCL and sarcoma
• all mice exhibit metastasized osteosarcomas

immune system
• prior to and after tumor development, mice exhibit lymphocyte aggregates in the liver and lungs unlike wild-type mice
• prominent in the colon prior to and after tumor development
• some mice exhibit generalized inflammation
• 60% of mice develop inflammation
• lobulitis, hepatitis, or cirrhosis of the liver in 27% of mice

liver/biliary system
• lobulitis, hepatitis, or cirrhosis of the liver in 27% of mice
• prior to and after tumor development
• lobulitis, hepatitis, or cirrhosis of the liver in 27% of mice

cardiovascular system
• 27% of mice exhibit vasculitis affecting the skin, heart, aorta, kidney, or seminal vesicles vessels unlike wild-type mice

hematopoietic system
• prior to and after tumor development
• prior to and after tumor development, mice exhibit lymphocyte aggregates in the liver and lungs unlike wild-type mice

endocrine/exocrine glands
• luteoma of pregnancy in some mice

skeleton
• all mice exhibit metastasized osteosarcomas

digestive/alimentary system
• in the colon of some mice

respiratory system

reproductive system
• luteoma of pregnancy in some mice





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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
04/16/2024
MGI 6.23
The Jackson Laboratory