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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Fbxo7tm1a(EUCOMM)Wtsi
targeted mutation 1a, Wellcome Trust Sanger Institute
MGI:4842259
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Fbxo7tm1a(EUCOMM)Wtsi/Fbxo7tm1a(EUCOMM)Wtsi C57BL/6N-Fbxo7tm1a(EUCOMM)Wtsi/Wtsi MGI:5631128
hm2
Fbxo7tm1a(EUCOMM)Wtsi/Fbxo7tm1a(EUCOMM)Wtsi involves: C57BL/6N MGI:6286247


Genotype
MGI:5631128
hm1
Allelic
Composition
Fbxo7tm1a(EUCOMM)Wtsi/Fbxo7tm1a(EUCOMM)Wtsi
Genetic
Background
C57BL/6N-Fbxo7tm1a(EUCOMM)Wtsi/Wtsi
Cell Lines EPD0622_3_D02
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fbxo7tm1a(EUCOMM)Wtsi mutation (1 available); any Fbxo7 mutation (27 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype



Genotype
MGI:6286247
hm2
Allelic
Composition
Fbxo7tm1a(EUCOMM)Wtsi/Fbxo7tm1a(EUCOMM)Wtsi
Genetic
Background
involves: C57BL/6N
Cell Lines EPD0622_3_D02
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fbxo7tm1a(EUCOMM)Wtsi mutation (1 available); any Fbxo7 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• mice show severe thymic atrophy, with the thymus virtually undetectable by 10 weeks of age
• mice show a significant reduction in total thymus cell number at 8 weeks of age
• mice exhibit splenomegaly suggestive of compensatory extramedullary hematopoiesis
• mice show an increase in immature CD4/CD8 double negative T cells in the thymus at 8 weeks of age
• mice show extramedullary erythropoiesis in spleen with a significant increase in the % of more immature (CD71+) cells
• mice exhibit regenerative anemia associated with a shorter erythrocyte half-life
• mice show a significant increase in splenic erythroblast number at 15-17 weeks of age
• erythrocyte number is significantly reduced at 16 weeks of age
• hemoglobin level is significantly reduced at 16 weeks of age
• remaining circulating T cells exhibit an altered phenotype with an increase in T cells expressing high levels of CD44 and low levels of L selectin (CD62L), representing an effector memory status
• mice show a significant increase of activated/memory T cells in spleen
• mice show a significant reduction of T cells in peripheral blood and spleen, both in the CD4+ and CD8+ subsets
• mice show a significant increase of activated/memory T cells in spleen
• mice show a significant increase in splenic reticulocyte number at 15-17 weeks of age
• circulating reticulocyte number is significantly increased at 15-17 weeks of age
• in vivo half-life of erythrocytes is significantly shorter than that in wild-type controls

immune system
• mice show severe thymic atrophy, with the thymus virtually undetectable by 10 weeks of age
• mice show a significant reduction in total thymus cell number at 8 weeks of age
• mice exhibit splenomegaly suggestive of compensatory extramedullary hematopoiesis
• mice show an increase in immature CD4/CD8 double negative T cells in the thymus at 8 weeks of age
• remaining circulating T cells exhibit an altered phenotype with an increase in T cells expressing high levels of CD44 and low levels of L selectin (CD62L), representing an effector memory status
• mice show a significant increase of activated/memory T cells in spleen
• mice show a significant reduction of T cells in peripheral blood and spleen, both in the CD4+ and CD8+ subsets
• mice show a significant increase of activated/memory T cells in spleen
• following systemic infection with Salmonella typhimurium, mice exhibit exacerbated weight loss and splenomegaly, evidence of hepatocyte necrosis surrounded by inflammatory cell infiltration, a trend towards increased plasma levels of alanine aminotransferase and aspartate aminotransferase, higher plasma levels of amylase and lipase, and a striking increase in plasma ferritin levels at day 6 post infection relative to similarly infected wild-type controls
• mice exhibit increased morbidity after infection with Salmonella typhimurium and need to be sacrificed prior to day 11 post infection, whereas wild-type controls survive to day 15

homeostasis/metabolism
• plasma bilirubin concentration is significantly increased at 15-17 weeks of age
• plasma iron level is significantly decreased at 15-17 weeks of age

reproductive system
• epididymal spermatozoa show no motility
• testis weight is significantly reduced at 18-19 weeks of age
• males exhibit impaired spermatogenesis with spermatid arrest and markedly reduced spermatozoa formation at 8 weeks of age
• males exhibit a significantly reduced number of spermatozoa in the epididymis at 12-14 weeks of age
• epididymal spermatozoa are rare and show an abnormal morphology
• male mice are infertile with no litters resulting from matings with known fertile females

cellular
• males exhibit a significantly reduced number of spermatozoa in the epididymis at 12-14 weeks of age
• epididymal spermatozoa are rare and show an abnormal morphology
• epididymal spermatozoa show no motility

behavior/neurological
N
• mice show no evidence of neurological (Parkinsons-like) symptoms

mortality/aging
N
• mice are born at the expected Mendelian ratio and show a normal lifespan
• mice exhibit increased morbidity after infection with Salmonella typhimurium and need to be sacrificed prior to day 11 post infection, whereas wild-type controls survive to day 15

endocrine/exocrine glands
• mice show severe thymic atrophy, with the thymus virtually undetectable by 10 weeks of age
• mice show a significant reduction in total thymus cell number at 8 weeks of age
• testis weight is significantly reduced at 18-19 weeks of age

growth/size/body
• mice exhibit splenomegaly suggestive of compensatory extramedullary hematopoiesis





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last database update
08/15/2024
MGI 6.24
The Jackson Laboratory