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Phenotypes Associated with This Genotype
Genotype
MGI:2678774
Allelic
Composition		 Opn1mwtm1(OPN1LW)Nat/Y
Genetic
Background		 involves: 129
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Opn1mwtm1(OPN1LW)Nat mutation (1 available); any Opn1mw mutation (5 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
vision/eye
abnormal vision ( J:85849 )
• retinal ganglion cells show spectral sensitivity matching that of the human red pigment (approximate 45-nm red shift) instead of the native mouse green pigment

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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Send questions and comments to User Support. 		last database update
12/30/2025
MGI 6.24 		The Jackson Laboratory