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Phenotypes Associated with This Genotype
Genotype
MGI:3842728
Allelic
Composition
Frem2my/Frem2my
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Frem2my mutation (1 available); any Frem2 mutation (135 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• some acephalic and extremely pale embryos are found and these are born dead

vision/eye
• a clear lesion in the region of the eye is generally found at birth and the severity is greatly variable extending to degeneration of the eye elements (J:14847)
• in cases where only one eye is abnormal it can be the left or right with no preference for one or the other (J:14847)

craniofacial
• shortened foreface and considerable variation in the length and shape of the foreface can be found

nervous system
• in some stillborn

integument

limbs/digits/tail
• in addition to the eye and facial defects the feet and legs can be impacted to varying degrees including absent, shortened, or malformed digits, hemorrhagic lesions on the digits and legs, twisted foot or paw, or badly distorted leg
• of the middle digits

growth/size/body
• shortened foreface and considerable variation in the length and shape of the foreface can be found

renal/urinary system

skeleton

embryo
• Background Sensitivity: many systems are affected with variable penetrance


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)
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last database update
01/28/2026
MGI 6.24
The Jackson Laboratory