About   Help   FAQ
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 (98 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





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
04/16/2024
MGI 6.23
The Jackson Laboratory