About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Efl1em1(IMPC)Bay
endonuclease-mediated mutation 1, Baylor College of Medicine
MGI:6257755
Summary 2 genotypes


Genotype
MGI:6408356
hm1
Allelic
Composition
Efl1em1(IMPC)Bay/Efl1em1(IMPC)Bay
Genetic
Background
C57BL/6N-Efl1em1(IMPC)Bay/BayMmucd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Efl1em1(IMPC)Bay mutation (1 available); any Efl1 mutation (57 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging




Genotype
MGI:7720266
hm2
Allelic
Composition
Efl1em1(IMPC)Bay/Efl1em1(IMPC)Bay
Genetic
Background
C57BL/6N-Efl1em1(IMPC)Bay/Mmmh
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Efl1em1(IMPC)Bay mutation (1 available); any Efl1 mutation (57 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Efl1em1(IMPC)Bay/Efl1em1(IMPC)Bay mice exhibit embryonic lethality, with embryos recovered at E7.5 but not at E9.5. Embryos show severe developmental delay, poorly organized extraembryonic tissues, and no gastrulation.

mortality/aging
• although homozygous embryos are present in expected Mendelian ratios at E7.5, none are recovered at E9.5

embryo
• embryos fail to initiate gastrulation; no Brachyury (T)-positive cells are present at E7.5
• embryos show a severe developmental delay at E7.5
• a small egg cylinder is observed at E7.5
• no Brachyury (T)-positive cells are present at E7.5
• extraembryonic tissues are poorly organized at E7.5

growth/size/body
• embryos show a severe developmental delay at E7.5





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
11/12/2024
MGI 6.24
The Jackson Laboratory