About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Eef1a1+
wild type
MGI:2430029
Summary 8 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Eef1a1tm1(Kras*)Arge/Eef1a1+
Waptm1(cre)Arge/Wap+
involves: 129S1/Sv MGI:3837707
cn2
Eef1a1tm1(Kras*)Arge/Eef1a1+
Igf1rtm2Arge/Igf1r+
Waptm1(cre)Arge/Wap+
involves: 129S1/Sv MGI:3837708
cn3
Eef1a1tm1(Kras*)Arge/Eef1a1+
Igf1rtm2Arge/Igf1rtm2Arge
Waptm1(cre)Arge/Wap+
involves: 129S1/Sv MGI:3837711
cn4
Eef1a1tm1(Kras*)Arge/Eef1a1+
Tg(Hsp70-1-cre)1Arge/0
involves: 129S1/Sv * C57BL/6J * CBA MGI:3837706
cn5
Eef1a1tm1Tcrl/Eef1a1+
Edil3Tg(Sox2-cre)1Amc/Edil3+
involves: 129S6/SvEvTac * C57BL/6 * CBA MGI:5692456
cn6
Eef1a1tm2Arge/Eef1a1+
Gt(ROSA)26Sortm9(cre/ESR1)Arte/Gt(ROSA)26Sor+
involves: C57BL/6 * C57BL/6NTac MGI:5496427
cn7
Eef1a1tm1(FBXW7*)Iaai/Eef1a1+
Tg(Mx1-cre)1Cgn/0
involves: C57BL/6 * CBA MGI:5524229
cn8
Eef1a1tm2Arge/Eef1a1+
Tg(Mx1-cre)1Cgn/0
involves: C57BL/6 * CBA MGI:5491045


Genotype
MGI:3837707
cn1
Allelic
Composition
Eef1a1tm1(Kras*)Arge/Eef1a1+
Waptm1(cre)Arge/Wap+
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eef1a1tm1(Kras*)Arge mutation (0 available); any Eef1a1 mutation (60 available)
Waptm1(cre)Arge mutation (0 available); any Wap mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Histology and immunophenotyping of mammary carcinomas in Eef1a1tm1(Kras*)Arge/Eef1a1+ Waptm1(cre)Arge/Wap+ mice

mortality/aging
• median tumor-free survival of lactating female mice is 9 days from the first parturition

neoplasm
• within 2 days to 2 months of first delivery, lactating females develop palpable multifocal, fully invasive tumors of the mammary gland unlike wild-type mice
• median tumor-free survival of lactating female mice is 9 days from the first parturition
• lactating female mice develop adenocarcinomas, and pale, squamous, and spindle cell carcinomas
• however, treatment with picropodophyllin decreases tumor mass

endocrine/exocrine glands
• within 2 days to 2 months of first delivery, lactating females develop palpable multifocal, fully invasive tumors of the mammary gland unlike wild-type mice
• median tumor-free survival of lactating female mice is 9 days from the first parturition
• lactating female mice develop adenocarcinomas, and pale, squamous, and spindle cell carcinomas
• however, treatment with picropodophyllin decreases tumor mass

integument
• within 2 days to 2 months of first delivery, lactating females develop palpable multifocal, fully invasive tumors of the mammary gland unlike wild-type mice
• median tumor-free survival of lactating female mice is 9 days from the first parturition
• lactating female mice develop adenocarcinomas, and pale, squamous, and spindle cell carcinomas
• however, treatment with picropodophyllin decreases tumor mass

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
breast cancer DOID:1612 OMIM:114480
J:146290




Genotype
MGI:3837708
cn2
Allelic
Composition
Eef1a1tm1(Kras*)Arge/Eef1a1+
Igf1rtm2Arge/Igf1r+
Waptm1(cre)Arge/Wap+
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eef1a1tm1(Kras*)Arge mutation (0 available); any Eef1a1 mutation (60 available)
Igf1rtm2Arge mutation (1 available); any Igf1r mutation (88 available)
Waptm1(cre)Arge mutation (0 available); any Wap mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• median tumor free survival of lactating females is 43 days from the first parturition

neoplasm
• female mice develop mammary gland tumors with a 5-fold increase in latency compared to in Eef1a1tm1(Kras*)Arge Waptm1(cre)Arge heterozygotes
• median tumor free survival of lactating females is 43 days from the first parturition

endocrine/exocrine glands
• female mice develop mammary gland tumors with a 5-fold increase in latency compared to in Eef1a1tm1(Kras*)Arge Waptm1(cre)Arge heterozygotes
• median tumor free survival of lactating females is 43 days from the first parturition

integument
• female mice develop mammary gland tumors with a 5-fold increase in latency compared to in Eef1a1tm1(Kras*)Arge Waptm1(cre)Arge heterozygotes
• median tumor free survival of lactating females is 43 days from the first parturition




Genotype
MGI:3837711
cn3
Allelic
Composition
Eef1a1tm1(Kras*)Arge/Eef1a1+
Igf1rtm2Arge/Igf1rtm2Arge
Waptm1(cre)Arge/Wap+
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eef1a1tm1(Kras*)Arge mutation (0 available); any Eef1a1 mutation (60 available)
Igf1rtm2Arge mutation (1 available); any Igf1r mutation (88 available)
Waptm1(cre)Arge mutation (0 available); any Wap mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• median tumor free survival of lactating females is 101 days from the first parturition

neoplasm
• female mice develop mammary gland tumors after 3 pregnancies with an 11-fold increase in latency compared to in Eef1a1tm1(Kras*)Arge Waptm1(cre)Arge heterozygotes
• median tumor free survival of lactating females is 101 days from the first parturition

endocrine/exocrine glands
• female mice develop mammary gland tumors after 3 pregnancies with an 11-fold increase in latency compared to in Eef1a1tm1(Kras*)Arge Waptm1(cre)Arge heterozygotes
• median tumor free survival of lactating females is 101 days from the first parturition

integument
• female mice develop mammary gland tumors after 3 pregnancies with an 11-fold increase in latency compared to in Eef1a1tm1(Kras*)Arge Waptm1(cre)Arge heterozygotes
• median tumor free survival of lactating females is 101 days from the first parturition




Genotype
MGI:3837706
cn4
Allelic
Composition
Eef1a1tm1(Kras*)Arge/Eef1a1+
Tg(Hsp70-1-cre)1Arge/0
Genetic
Background
involves: 129S1/Sv * C57BL/6J * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eef1a1tm1(Kras*)Arge mutation (0 available); any Eef1a1 mutation (60 available)
Tg(Hsp70-1-cre)1Arge mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging




Genotype
MGI:5692456
cn5
Allelic
Composition
Eef1a1tm1Tcrl/Eef1a1+
Edil3Tg(Sox2-cre)1Amc/Edil3+
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Edil3Tg(Sox2-cre)1Amc mutation (5 available); any Edil3 mutation (43 available)
Eef1a1tm1Tcrl mutation (0 available); any Eef1a1 mutation (60 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
embryo
• a high percentage of E12.5 embryos exhibit neural tube defects
• several E11.5 and E12.5 embryos exhibit spina bifida

mortality/aging
• no pups survive beyond P14
• fewer double heterozygous animals (4.6%) are produced than expected (25%) from a heterozygote x heterozygote mating
• a significant drop in viability occurs between E15.5 and birth

nervous system
• a high percentage of E12.5 embryos exhibit neural tube defects
• several E11.5 and E12.5 embryos exhibit spina bifida
• several E11.5 and E12.5 embryos exhibit holoprosencephaly




Genotype
MGI:5496427
cn6
Allelic
Composition
Eef1a1tm2Arge/Eef1a1+
Gt(ROSA)26Sortm9(cre/ESR1)Arte/Gt(ROSA)26Sor+
Genetic
Background
involves: C57BL/6 * C57BL/6NTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eef1a1tm2Arge mutation (0 available); any Eef1a1 mutation (60 available)
Gt(ROSA)26Sortm9(cre/ESR1)Arte mutation (3 available); any Gt(ROSA)26Sor mutation (1098 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• leukemia-initiating cells plated in methylcellulose cultures in the presence of tamoxifen exhibit decreased blast colony number and loss of blast colony formation due to increased apoptosis compared with control cells




Genotype
MGI:5524229
cn7
Allelic
Composition
Eef1a1tm1(FBXW7*)Iaai/Eef1a1+
Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eef1a1tm1(FBXW7*)Iaai mutation (0 available); any Eef1a1 mutation (60 available)
Tg(Mx1-cre)1Cgn mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
N
• pIpC-treated mice do not develop leukemia
• pIpC-treated mice infected with a retrovirus expression a truncated form of Notch1 that is constitutively cleaved in a ligand-independent manner exhibit shorted latency to development of leukemia




Genotype
MGI:5491045
cn8
Allelic
Composition
Eef1a1tm2Arge/Eef1a1+
Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eef1a1tm2Arge mutation (0 available); any Eef1a1 mutation (60 available)
Tg(Mx1-cre)1Cgn mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• T cell acute lymphoblastic leukemia (T-ALL)
• progressive leukemic cells infiltrate the leptomeningeal spaces of the brain

immune system
• atypical CD4+CD8+ T cells in the peripheral blood

hematopoietic system
• atypical CD4+CD8+ T cells in the peripheral blood





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
03/25/2025
MGI 6.24
The Jackson Laboratory