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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Pou2f2tm1Bal
targeted mutation 1, David Baltimore
MGI:3028896
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Pou2f2tm1Bal/Pou2f2tm1Bal involves: 129S2/SvPas MGI:3765426
hm2
Pou2f2tm1Bal/Pou2f2tm1Bal involves: 129S2/SvPas * C57BL/6 MGI:3037267
ht3
Pou2f2tm1Bal/Pou2f2+ involves: 129S2/SvPas MGI:3765427
cx4
Pou2f1tm1Shrp/Pou2f1+
Pou2f2tm1Bal/Pou2f2+
involves: 129S2/SvPas * 129S4/SvJae * C57BL/6 MGI:3028898


Genotype
MGI:3765426
hm1
Allelic
Composition
Pou2f2tm1Bal/Pou2f2tm1Bal
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pou2f2tm1Bal mutation (0 available); any Pou2f2 mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• within a few hours of birth mice become lethargic, dehydrated, cyanotic and die of unknown causes
• however, lungs, heart, spleen, liver, thymus, kidneys and brain are normal

immune system
• mature B cell numbers in the liver and spleen are slightly lower than in wild-type mice
• however, early B cell and fetal pre-B and B cell numbers are normal
• the frequency of IgM or IgG1 forming clones from cultured liver cells is reduced 20-fold, the frequency of IgG1 forming clones from spleen cells is reduced 100-fold, and the frequency of IgM forming clones from spleen cells is reduced 200-fold compared to wild-type
• cultured liver cells produce 10-fold less IgG1 compared to wild-type
• cultured spleen cells produce 70-fold less IgG1 compared to wild-type
• cultured liver cells produce 16-fold less IgM compared to wild-type
• cultured spleen cells produce 55-fold less IgM compared to wild-type

homeostasis/metabolism
• within a few hours of birth
• within a few hours of birth

behavior/neurological
• within a few hours of birth
• mice do not suckle at birth

respiratory system
N
• at birth, lungs are pink and inflate

hematopoietic system
• mature B cell numbers in the liver and spleen are slightly lower than in wild-type mice
• however, early B cell and fetal pre-B and B cell numbers are normal
• the frequency of IgM or IgG1 forming clones from cultured liver cells is reduced 20-fold, the frequency of IgG1 forming clones from spleen cells is reduced 100-fold, and the frequency of IgM forming clones from spleen cells is reduced 200-fold compared to wild-type
• cultured liver cells produce 10-fold less IgG1 compared to wild-type
• cultured spleen cells produce 70-fold less IgG1 compared to wild-type
• cultured liver cells produce 16-fold less IgM compared to wild-type
• cultured spleen cells produce 55-fold less IgM compared to wild-type




Genotype
MGI:3037267
hm2
Allelic
Composition
Pou2f2tm1Bal/Pou2f2tm1Bal
Genetic
Background
involves: 129S2/SvPas * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pou2f2tm1Bal mutation (0 available); any Pou2f2 mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• homozygous mice die shortly after birth

hematopoietic system
• in adult Rag-1 deficient mice in which the immune system has been reconstituted with fetal liver stem cells from mutants peripheral B cells appear immature with high heat stable antigen levels
• in adult Rag-1 deficient mice in which the immune system has been reconstituted with fetal liver stem cells from mutants the proportion of B cells is significantly reduced
• in adult Rag-1 deficient mice in which the immune system has been reconstituted with fetal liver stem cells from mutants an 8 - 10 fold reduction in immunoglobulin concentrations is seen

immune system
• in adult Rag-1 deficient mice in which the immune system has been reconstituted with fetal liver stem cells from mutants peripheral B cells appear immature with high heat stable antigen levels
• in adult Rag-1 deficient mice in which the immune system has been reconstituted with fetal liver stem cells from mutants the proportion of B cells is significantly reduced
• in adult Rag-1 deficient mice in which the immune system has been reconstituted with fetal liver stem cells from mutants an 8 - 10 fold reduction in immunoglobulin concentrations is seen




Genotype
MGI:3765427
ht3
Allelic
Composition
Pou2f2tm1Bal/Pou2f2+
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pou2f2tm1Bal mutation (0 available); any Pou2f2 mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• mature B cells in the liver are reduced compared to in wild-type mice but not as severely as in homozygous mice
• cultured liver and spleen cells produce less IgG1 than wild-type cells but more than homozygous cells
• cultured liver and spleen cells produce less IgM than wild-type cells but more than homozygous cells

hematopoietic system
• mature B cells in the liver are reduced compared to in wild-type mice but not as severely as in homozygous mice
• cultured liver and spleen cells produce less IgG1 than wild-type cells but more than homozygous cells
• cultured liver and spleen cells produce less IgM than wild-type cells but more than homozygous cells




Genotype
MGI:3028898
cx4
Allelic
Composition
Pou2f1tm1Shrp/Pou2f1+
Pou2f2tm1Bal/Pou2f2+
Genetic
Background
involves: 129S2/SvPas * 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pou2f1tm1Shrp mutation (1 available); any Pou2f1 mutation (99 available)
Pou2f2tm1Bal mutation (0 available); any Pou2f2 mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• many transheterozygous mutants die within 24 hours of birth
• a subset of mutants surviving birth die prior to weaning

behavior/neurological
• surviving neonates become increasingly lethargic and runted

growth/size/body
• surviving neonates have lower body weights





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory