About   Help   FAQ
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





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
11/12/2024
MGI 6.24
The Jackson Laboratory