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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Eny2em1(IMPC)Bay
endonuclease-mediated mutation 1, Baylor College of Medicine
MGI:6414562
Summary 2 genotypes


Genotype
MGI:6731310
hm1
Allelic
Composition
Eny2em1(IMPC)Bay/Eny2em1(IMPC)Bay
Genetic
Background
C57BL/6N-Eny2em1(IMPC)Bay/BayMmucd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eny2em1(IMPC)Bay mutation (1 available); any Eny2 mutation (8 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging




Genotype
MGI:7719866
hm2
Allelic
Composition
Eny2em1(IMPC)Bay/Eny2em1(IMPC)Bay
Genetic
Background
C57BL/6NJ-Eny2em1(IMPC)Bay/Mmnc
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Eny2em1(IMPC)Bay mutation (1 available); any Eny2 mutation (8 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Eny2em1(IMPC)Bay/Eny2em1(IMPC)Bay mice exhibit embryonic lethality, with embryos recovered at E3.5 as early blastocysts but not at E7.5. Blastocysts hatch from the zona pellucida and form irregular outgrowths with no obvious inner cell mass colony or trophoblast giant cells.

mortality/aging
• although early blastocysts are present in nearly normal Mendelian ratios at E3.5 (20% versus expected 25%), no homozygous embryos are recovered at E7.5
• however, excess resorption sites suggest that embryos elicit a decidual response in vivo

embryo
• in vitro outgrowth assays show no obvious inner cell mass (ICM) colony after 3 days in culture
• in vitro, no trophoblast giant cells (TGCs) are apparent after 3 days in culture

reproductive system
• in vitro, blastocysts hatch from the zona pellucida but form irregular outgrowths after 3 days in culture





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last database update
10/22/2024
MGI 6.24
The Jackson Laboratory