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Phenotypes Associated with This Genotype
Genotype
MGI:3845513
Allelic
Composition
Otx2tm2Asim/Otx2tm2Asim
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Otx2tm2Asim mutation (1 available); any Otx2 mutation (50 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• 10% of mice exhibit reduced fertility

nervous system
• 54% of mice have moderate defects including exencephaly, lack of neural tube closure, or microencephaly with midbrain and forebrain reduction
• at E10.5, 65% of mice exhibit brain abnormalities of which 54% have moderate defects including exencephaly, lack of neural tube closure, or microencephaly with midbrain and forebrain reduction, and 11% have severe defects with heavy reduction of the forebrain and midbrain
• while forebrain territory is initially established it is not properly maintained
• while midbrain territory is initially established it is not properly maintained
• the forebrain is reduced moderately to severely compared to in wild-type mice
• the midbrain is reduced moderately to severely compared to in wild-type mice
• mice exhibit anencephalic features
• 54% of mice have moderate defects including exencephaly, lack of neural tube closure, or microencephaly with midbrain and forebrain reduction

behavior/neurological
• mice occasionally exhibit abnormal motor activity

embryo
• 54% of mice have moderate defects including exencephaly, lack of neural tube closure, or microencephaly with midbrain and forebrain reduction

growth/size/body
• 54% of mice have moderate defects including exencephaly, lack of neural tube closure, or microencephaly with midbrain and forebrain reduction


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
03/18/2025
MGI 6.24
The Jackson Laboratory