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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Npas3tm1b(KOMP)Wtsi
targeted mutation 1b, Wellcome Trust Sanger Institute
MGI:6120711
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Npas3tm1b(KOMP)Wtsi/Npas3tm1b(KOMP)Wtsi C57BL/6N-Npas3tm1b(KOMP)Wtsi/Kmpc MGI:6394339
ht2
 		Npas3tm1b(KOMP)Wtsi/Npas3+ C57BL/6N-Npas3tm1b(KOMP)Wtsi/Kmpc MGI:6325160


Genotype
MGI:6394339
hm1
Allelic
Composition		 Npas3tm1b(KOMP)Wtsi/Npas3tm1b(KOMP)Wtsi
Genetic
Background		 C57BL/6N-Npas3tm1b(KOMP)Wtsi/Kmpc
Cell Lines EPD0693_4_C07
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Npas3tm1b(KOMP)Wtsi mutation (0 available); any Npas3 mutation (41 available)
Data Sources
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
behavior/neurological

mortality/aging




Genotype
MGI:6325160
ht2
Allelic
Composition		 Npas3tm1b(KOMP)Wtsi/Npas3+
Genetic
Background		 C57BL/6N-Npas3tm1b(KOMP)Wtsi/Kmpc
Cell Lines EPD0693_4_C07
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Npas3tm1b(KOMP)Wtsi mutation (0 available); any Npas3 mutation (41 available)
Data Sources
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
behavior/neurological




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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