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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Pax3tm1.1Sjc
targeted mutation 1.1, Simon J Conway
MGI:2385685
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
 		Pax3tm1.1Sjc/Pax3+ involves: 129X1/SvJ * C3H * C57BL/6 MGI:3713882
ht2
 		Pax3tm1.1Sjc/Pax3tm1.2Sjc involves: 129X1/SvJ * C3H * C57BL/6 MGI:3713884
cn3
 		Pax3tm1.1Sjc/Pax3tm1.1Sjc
Pax7tm1.2Fan/Pax7tm1.2Fan
Tg(CAG-cre/Esr1*)5Amc/0 		involves: 129 * C57BL/6 * CBA * SJL MGI:4353177


Genotype
MGI:3713882
ht1
Allelic
Composition		 Pax3tm1.1Sjc/Pax3+
Genetic
Background		 involves: 129X1/SvJ * C3H * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax3tm1.1Sjc mutation (0 available); any Pax3 mutation (51 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
normal phenotype
no abnormal phenotype detected ( J:75127 )
• mice are viable and fertile




Genotype
MGI:3713884
ht2
Allelic
Composition		 Pax3tm1.1Sjc/Pax3tm1.2Sjc
Genetic
Background		 involves: 129X1/SvJ * C3H * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax3tm1.1Sjc mutation (0 available); any Pax3 mutation (51 available)
Pax3tm1.2Sjc mutation (0 available); any Pax3 mutation (51 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
belly spot ( J:75127 )
• mice have a white spot on the belly
head spot ( J:75127 )
• mice have a white spot on the head

integument
belly spot ( J:75127 )
• mice have a white spot on the belly
head spot ( J:75127 )
• mice have a white spot on the head




Genotype
MGI:4353177
cn3
Allelic
Composition		 Pax3tm1.1Sjc/Pax3tm1.1Sjc
Pax7tm1.2Fan/Pax7tm1.2Fan
Tg(CAG-cre/Esr1*)5Amc/0
Genetic
Background		 involves: 129 * C57BL/6 * CBA * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax3tm1.1Sjc mutation (0 available); any Pax3 mutation (51 available)
Pax7tm1.2Fan mutation (0 available); any Pax7 mutation (39 available)
Tg(CAG-cre/Esr1*)5Amc mutation (11 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
muscle
muscle phenotype ( J:150962 )
N
• following tamoxifen-treatment, muscle regeneration is normal as are the proliferative and myogenic properties of adult myoblasts




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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
09/30/2025
MGI 6.24 		The Jackson Laboratory