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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Opn4tm1(cre)Sapa
targeted mutation 1, Satchidananda Panda
MGI:3798479
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Dscamtm1Pfu/Dscamtm1Pfu
Opn4tm1(cre)Sapa/Opn4+
involves: 129 * C57BL/6 MGI:5305038
cn2
Gt(ROSA)26Sortm1(HBEGF)Awai/Gt(ROSA)26Sor+
Opn4tm1(cre)Sapa/Opn4+
involves: 129S * C57BL/6 MGI:3803116


Genotype
MGI:5305038
cn1
Allelic
Composition
Dscamtm1Pfu/Dscamtm1Pfu
Opn4tm1(cre)Sapa/Opn4+
Genetic
Background
involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dscamtm1Pfu mutation (1 available); any Dscam mutation (105 available)
Opn4tm1(cre)Sapa mutation (0 available); any Opn4 mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• fasiculation and spacing phenotype in melanopsin positive RGCs

nervous system
• fasiculation and spacing phenotype in melanopsin positive RGCs
• fasiculation and spacing phenotype in melanopsin positive RGCs

cellular
• fasiculation and spacing phenotype in melanopsin positive RGCs




Genotype
MGI:3803116
cn2
Allelic
Composition
Gt(ROSA)26Sortm1(HBEGF)Awai/Gt(ROSA)26Sor+
Opn4tm1(cre)Sapa/Opn4+
Genetic
Background
involves: 129S * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(HBEGF)Awai mutation (4 available); any Gt(ROSA)26Sor mutation (942 available)
Opn4tm1(cre)Sapa mutation (0 available); any Opn4 mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• following treatment with diphtheria toxin, light pupilary reflex is lost
• following treatment with diphtheria toxin, 90% of melanopsin retinal ganglion cells are ablated

nervous system
• following treatment with diphtheria toxin, projections into the suprachiasmatic nucleus are reduced compared to in wild-type mice
• following treatment with diphtheria toxin, 90% of melanopsin retinal ganglion cells are ablated

behavior/neurological
N
• despite ablation of melanopsin retinal ganglion cells following treatment with diphtheria toxin, mice exhibit normal image-forming visual responses
• following treatment with diphtheria toxin, light pupilary reflex is lost
• following treatment with diphtheria toxin, mice lose their ability to photo-entrain their circadian rhythm and mice maintain equal activity during light and dark phases unlike in wild-type mice





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last database update
04/16/2024
MGI 6.23
The Jackson Laboratory