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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Pax5+
wild type
MGI:2431552
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Pax5m2Btlr/Pax5+ C57BL/6J-Pax5m2Btlr MGI:6113404
ht2
Pax5m3Btlr/Pax5+ C57BL/6J-Pax5m3Btlr MGI:6113410
ht3
Pax5tm1b(EUCOMM)Wtsi/Pax5+ C57BL/6N-Pax5tm1b(EUCOMM)Wtsi/Ieg MGI:6263103
ht4
Pax5tm1Mbu/Pax5+ involves: 129S2/SvPas * C57BL/6 MGI:2654625
cn5
Pax5tm3Mbu/Pax5+
Tcf3tm1(PBX1)Mlc/Tcf3+
Cd19tm1(cre)Cgn/Cd19+
involves: 129P2/OlaHsd * C57BL/6 MGI:5825360
cn6
Pax5tm3Mbu/Pax5+
Tg(Gad1-cre,-lacZ)1Mini/0
involves: 129P2/OlaHsd * C57BL/6 * CBA MGI:5486580


Genotype
MGI:6113404
ht1
Allelic
Composition
Pax5m2Btlr/Pax5+
Genetic
Background
C57BL/6J-Pax5m2Btlr
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax5m2Btlr mutation (0 available); any Pax5 mutation (39 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• in the peripheral blood

immune system
• in the peripheral blood




Genotype
MGI:6113410
ht2
Allelic
Composition
Pax5m3Btlr/Pax5+
Genetic
Background
C57BL/6J-Pax5m3Btlr
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax5m3Btlr mutation (0 available); any Pax5 mutation (39 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• slight reduced frequencies of total, IgD+, IgM+ B cells in the peripheral blood

immune system
• slight reduced frequencies of total, IgD+, IgM+ B cells in the peripheral blood




Genotype
MGI:6263103
ht3
Allelic
Composition
Pax5tm1b(EUCOMM)Wtsi/Pax5+
Genetic
Background
C57BL/6N-Pax5tm1b(EUCOMM)Wtsi/Ieg
Cell Lines EPD0237_3_F11
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax5tm1b(EUCOMM)Wtsi mutation (1 available); any Pax5 mutation (39 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype



Genotype
MGI:2654625
ht4
Allelic
Composition
Pax5tm1Mbu/Pax5+
Genetic
Background
involves: 129S2/SvPas * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax5tm1Mbu mutation (1 available); any Pax5 mutation (39 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• culmen of cerebellum is slightly expanded anteriorly, but inferior colliculus appears normal as opposed to homozygotes
• only shallow intraculminate fissure is observed compared to homozygotes




Genotype
MGI:5825360
cn5
Allelic
Composition
Pax5tm3Mbu/Pax5+
Tcf3tm1(PBX1)Mlc/Tcf3+
Cd19tm1(cre)Cgn/Cd19+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cd19tm1(cre)Cgn mutation (12 available); any Cd19 mutation (61 available)
Pax5tm3Mbu mutation (1 available); any Pax5 mutation (39 available)
Tcf3tm1(PBX1)Mlc mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice exhibit increased penetrance and accelerated acute leukemia development compared to single Tcf3tm1(PBX1)Mlc conditional mutants

hematopoietic system
• preleukemic mice show a greater decrease of immature B cells of the Lin-CD19+CD43- fractions compared to Tcf3tm1(PBX1)Mlc conditional mutants, indicating a more severe block of B cell differentiation at this stage of maturation
• preleukemic mice show expansion of GFP+ progenitor cells of the Lin-CD19+CD43+ fractions at younger ages compared to single Tcf3tm1(PBX1)Mlc conditional mutants, indicating accelerated preleukemic progenitor B cell expansion
• preleukemic mice show a greater decrease of immature B cells of the Lin-CD19+CD43- fractions compared to Tcf3tm1(PBX1)Mlc conditional mutants, indicating a more severe block of B cell differentiation at this stage of maturation

immune system
• preleukemic mice show a greater decrease of immature B cells of the Lin-CD19+CD43- fractions compared to Tcf3tm1(PBX1)Mlc conditional mutants, indicating a more severe block of B cell differentiation at this stage of maturation
• preleukemic mice show expansion of GFP+ progenitor cells of the Lin-CD19+CD43+ fractions at younger ages compared to single Tcf3tm1(PBX1)Mlc conditional mutants, indicating accelerated preleukemic progenitor B cell expansion
• preleukemic mice show a greater decrease of immature B cells of the Lin-CD19+CD43- fractions compared to Tcf3tm1(PBX1)Mlc conditional mutants, indicating a more severe block of B cell differentiation at this stage of maturation




Genotype
MGI:5486580
cn6
Allelic
Composition
Pax5tm3Mbu/Pax5+
Tg(Gad1-cre,-lacZ)1Mini/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax5tm3Mbu mutation (1 available); any Pax5 mutation (39 available)
Tg(Gad1-cre,-lacZ)1Mini mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die 1-2 weeks after macroscopic changes appear (ie. domed skulls); life expectancy of such mutants is 58 days; mice that do not show this phenotype survive at least 12 months and are fertile

skeleton
• 19% of mice show dome shaped skulls by about postnatal day 50

craniofacial
• 19% of mice show dome shaped skulls by about postnatal day 50

behavior/neurological
• mutants spend less time in the center in open-field tests, suggesting increased anxiogenic-like behavior
• in a novel open-field test, mutants with dome-shaped heads show significantly increased locomotion (likely due to the novelty aspect), as mutants appear lethargic in the home cages

nervous system
• 19% of mice
• prominent, varying mild to severe





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last database update
03/18/2025
MGI 6.24
The Jackson Laboratory