About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
E2f4+
wild type
MGI:2433131
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cx1
E2f4tm2.1Lees/E2f4+
E2f5tm1Dli/E2f5tm1Dli
involves: 129S1/Sv * 129S4/SvJae * C57BL/6 MGI:5706801
cx2
E2f4tm1Lees/E2f4+
E2f5tm1Dli/E2f5tm1Dli
involves: 129S1/Sv * 129S4/SvJae * C57BL/6 MGI:5706802
cx3
E2f4tm1Lees/E2f4+
Rb1tm1Tyj/Rb1+
involves: 129S2/SvPas * C57BL/6 MGI:3582523


Genotype
MGI:5706801
cx1
Allelic
Composition
E2f4tm2.1Lees/E2f4+
E2f5tm1Dli/E2f5tm1Dli
Genetic
Background
involves: 129S1/Sv * 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
E2f4tm2.1Lees mutation (1 available); any E2f4 mutation (21 available)
E2f5tm1Dli mutation (1 available); any E2f5 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• in all mice
• at 3 weeks, efferent duct epithelium exhibit reduced multiciliated cells compared with control mice

endocrine/exocrine glands
• in all mice




Genotype
MGI:5706802
cx2
Allelic
Composition
E2f4tm1Lees/E2f4+
E2f5tm1Dli/E2f5tm1Dli
Genetic
Background
involves: 129S1/Sv * 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
E2f4tm1Lees mutation (1 available); any E2f4 mutation (21 available)
E2f5tm1Dli mutation (1 available); any E2f5 mutation (13 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system

endocrine/exocrine glands




Genotype
MGI:3582523
cx3
Allelic
Composition
E2f4tm1Lees/E2f4+
Rb1tm1Tyj/Rb1+
Genetic
Background
involves: 129S2/SvPas * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
E2f4tm1Lees mutation (1 available); any E2f4 mutation (21 available)
Rb1tm1Tyj mutation (5 available); any Rb1 mutation (117 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• died by 18 months of age compared to 20-27 months in wild-type

neoplasm
• developed pituitary tumors that were comparable to those arising in single heterozygous mutant Rb1 mice with respect to both incidence and size
• developed thyroid tumors that were comparable to those arising in single heterozygous mutant Rb1 mice with respect to both incidence and size

endocrine/exocrine glands
• developed pituitary tumors that were comparable to those arising in single heterozygous mutant Rb1 mice with respect to both incidence and size
• developed thyroid tumors that were comparable to those arising in single heterozygous mutant Rb1 mice with respect to both incidence and size

nervous system
• developed pituitary tumors that were comparable to those arising in single heterozygous mutant Rb1 mice with respect to both incidence and size





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
03/18/2025
MGI 6.24
The Jackson Laboratory