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Phenotypes Associated with This Genotype
Genotype
MGI:3053858
Allelic
Composition
Npy1rtm1.1Wpg/Npy1rtm1.1Wpg
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Npy1rtm1.1Wpg mutation (0 available); any Npy1r mutation (25 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• kainic acid-exposed mice over-expressing rAAV1/2-NPY exhibit no mortality unlike similarly treated wild-type mice

reproductive system
• average litter size is 7.64 +/- 0.51 compared to 4.86 +/- 0.32 in wild-type mice

immune system
• all B cell subsets reduced
• type 1 and type 2 cells both reduced
• significantly increased in the lymph nodes
• slightly reduced in the spleen
• significantly increased in the lymph nodes
• reduced B cell numbers among splenocytes
• reduced numbers of B cells
• decreased levels released by macrophage
• decreased levels released by macrophage
• impaired
• protected against Th1 cell mediated inflammatory conditions such as those resulting from sodium dextran sulfate treatment
• hyper responsive to activation
• antigen presentation defective as tested by mixed lymphocyte response tests
• both baseline levels and levels in response to antigen are reduced
• in response to antigen
• levels of Il12 released are reduced
• levels of TNF released are reduced
• swelling reduced to 55% that of controls
• reduced proliferation of lymph node cells
• reduced production of IFN-gamma

homeostasis/metabolism
• decreased levels released by macrophage
• decreased levels released by macrophage
• kainic acid-exposed mice over-expressing rAAV1/2-NPY exhibit no mortality unlike similarly treated wild-type mice

behavior/neurological
• territorial aggression but not spontaneous aggression is increased in homozygous mutants
• injection of an Htr1a agonist reduces aggressive behavior in a dose-dependent manner
• homozygous males display increased movement in an open field test

nervous system
• in primary cultures proliferation of post-natal hippocampal precursor cells is not increased in response to neuropeptide Y treatment

hematopoietic system
• all B cell subsets reduced
• type 1 and type 2 cells both reduced
• significantly increased in the lymph nodes
• slightly reduced in the spleen
• significantly increased in the lymph nodes
• reduced B cell numbers among splenocytes
• both baseline levels and levels in response to antigen are reduced
• in response to antigen
• impaired
• protected against Th1 cell mediated inflammatory conditions such as those resulting from sodium dextran sulfate treatment
• hyper responsive to activation
• levels of Il12 released are reduced
• levels of TNF released are reduced

cellular
• in primary cultures proliferation of post-natal hippocampal precursor cells is not increased in response to neuropeptide Y treatment


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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last database update
01/06/2026
MGI 6.24
The Jackson Laboratory