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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





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory