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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ehbp1em1(IMPC)J
endonuclease-mediated mutation 1, Jackson
MGI:6342439
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Ehbp1em1(IMPC)J/Ehbp1em1(IMPC)J C57BL/6NJ-Ehbp1em1(IMPC)J/Mmjax MGI:6492813


Genotype
MGI:6492813
hm1
Allelic
Composition
Ehbp1em1(IMPC)J/Ehbp1em1(IMPC)J
Genetic
Background
C57BL/6NJ-Ehbp1em1(IMPC)J/Mmjax
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ehbp1em1(IMPC)J mutation (2 available); any Ehbp1 mutation (76 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype

Ehbp1em1(IMPC)J/Ehbp1em1(IMPC)J embryos are often smaller, are incompletely turned, have abnormal heads, and most have caudal neural tube kinks, abnormally shaped hearts, branchial arch defects, and misshapen tail tip. Some have incomplete cranial neural tube closure and pale yolk sacs.

cardiovascular system
• by E9.5, most homozygous embryos exhibit abnormally shaped hearts

craniofacial
• by E9.5, most homozygous embryos exhibit branchial arch defects
• by E9.5 almost all homozygous embryos exhibit abnormally shaped heads

embryo
• by E9.5 almost all homozygous embryos are incompletely turned
• at E9.5, the entire embryo is contorted by an unturned tail
• however, all three germ layers are present at E8.5 and germ layer patterning is normal at E9.5
• by E9.5, most homozygous embryos exhibit branchial arch defects
• at E8.5, homozygous embryos are sometimes smaller than control littermates
• by E9.5, a minority of homozygous embryos exhibit incomplete closure of the cranial neural tube
• by E9.5, most homozygous embryos exhibit caudal neural tube kinks
• at E9.5, the Tfeb+ labyrinth trophoblast layer is slightly reduced
• at E9.5, some homozygous embryos have pale yolk sacs; by E10.5, all have pale yolk sacs
• at E9.5, Gcm1+ chorioallantoic branching is slightly reduced
• however, overall placenta development is largely normal

growth/size/body
• by E9.5 almost all homozygous embryos exhibit abnormally shaped heads
• at E8.5, homozygous embryos are sometimes smaller than control littermates

limbs/digits/tail
• at E9.5, the entire embryo is contorted by an unturned tail
• by E9.5, most homozygous embryos show a misshapen tail tip

mortality/aging
• homozygous embryos are present in expected Mendelian ratios at E8.5 and E9.5 but absent at E12.5; all homozygous embryos recovered at E10.5 are dying

nervous system
• by E9.5, a minority of homozygous embryos exhibit incomplete closure of the cranial neural tube
• by E9.5, most homozygous embryos exhibit caudal neural tube kinks
• by E9.5 almost all homozygous embryos exhibit an abnormal midbrain
• by E9.5 almost all homozygous embryos exhibit an abnormal forebrain





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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
01/06/2026
MGI 6.24
The Jackson Laboratory