About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Pax3tm1.2Sjc
targeted mutation 1.2, Simon J Conway
MGI:2385687
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Pax3tm1.2Sjc/Pax3tm1.2Sjc involves: 129X1/SvJ * C3H * C57BL/6 MGI:3713883
ht2
 		Pax3tm1.1Sjc/Pax3tm1.2Sjc involves: 129X1/SvJ * C3H * C57BL/6 MGI:3713884


Genotype
MGI:3713883
hm1
Allelic
Composition		 Pax3tm1.2Sjc/Pax3tm1.2Sjc
Genetic
Background		 involves: 129X1/SvJ * C3H * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax3tm1.2Sjc mutation (0 available); any Pax3 mutation (51 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
embryonic lethality during organogenesis, complete penetrance ( J:75127 )
• at 14 days post coitum, only dead embryos are present




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




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
09/30/2025
MGI 6.24 		The Jackson Laboratory