About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:5433340
Allelic
Composition		 Atoh7tm1Gla/Atoh7tm1Gla
Genetic
Background		 involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Atoh7tm1Gla mutation (1 available); any Atoh7 mutation (9 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
vision/eye
absent optic nerve ( J:186563 )
• no optic nerve develops
abnormal retina morphology ( J:186563 )
• cell death is significantly increased relative to controls

nervous system
absent optic nerve ( J:186563 )
• no optic nerve develops

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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support. 		last database update
01/20/2026
MGI 6.24 		The Jackson Laboratory