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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Npeppstm1Klr
targeted mutation 1, Kenneth L Rock
MGI:3774016
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Npeppstm1Klr/Npeppstm1Klr involves: 129 * C57BL/6 MGI:3813524


Genotype
MGI:3813524
hm1
Allelic
Composition		 Npeppstm1Klr/Npeppstm1Klr
Genetic
Background		 involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Npeppstm1Klr mutation (0 available); any Npepps mutation (123 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
perinatal lethality, incomplete penetrance ( J:131502 )
• homozygotes born at lower than expected numbers

growth/size/body
decreased body size ( J:131502 )

reproductive system
decreased litter size ( J:131502 )
• at weaning
• as adults

behavior/neurological
abnormal gait ( J:131502 )
• in some but not all

immune system
immune system phenotype ( J:131502 )
N
• no immune system abnormalities detected




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
09/30/2025
MGI 6.24 		The Jackson Laboratory