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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tcf3+
wild type
MGI:2432259
Summary 15 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
\Tcf3tm1Cmu/\Tcf3+ either: 129P2/OlaHsd-Tcf3tm1Cmu or (involves: 129P2/OlaHsd * FVB/N) MGI:3776820
ht2
\Tcf3tm1Wein/\Tcf3+ either: (involves: 129/Sv * 129S4/SvJaeSor) or (involves: 129S4/SvJaeSor * C57BL/6J) MGI:2680064
ht3
\Tcf3tm1.1Mbu/\Tcf3+ involves: 129P2/OlaHsd * C57BL/6 MGI:3804185
ht4
\Tcf3tm1(TCF3/HLF)Homy/\Tcf3+ involves: 129P2/OlaHsd * C57BL/6 MGI:4458208
ht5
\Tcf3tm1Wein/\Tcf3+ involves: 129S4/SvJaeSor MGI:3046427
cn6
\Pax5tm3Mbu/\Pax5+
\Tcf3tm1(PBX1)Mlc/\Tcf3+
\Cd19tm1(cre)Cgn/\Cd19+
involves: 129P2/OlaHsd * C57BL/6 MGI:5825360
cn7
\Tcf3tm1(PBX1)Mlc/\Tcf3+
\Cd19tm1(cre)Cgn/\Cd19+
involves: 129P2/OlaHsd * C57BL/6 MGI:5825356
cn8
\Tcf3tm1(TCF3/HLF)Homy/\Tcf3+
\Tg(Emu-Zfp521)1Homy/0
\Tg(Mx1-cre)1Cgn/0
involves: 129P2/OlaHsd * C57BL/6 * CBA MGI:4458210
cn9
\Tcf3tm1(TCF3/HLF)Homy/\Tcf3+
\Tg(Mx1-cre)1Cgn/0
involves: 129P2/OlaHsd * C57BL/6 * CBA MGI:4458207
cn10
\Tcf3tm1(PBX1)Mlc/\Tcf3+
\Cd79atm1(cre)Reth/\Cd79a+
involves: BALB/c * C57BL/6 MGI:5825357
cn11
\Tcf3tm1(PBX1)Mlc/\Tcf3+
\Tg(Mx1-cre)1Cgn/0
involves: C57BL/6 * C57BL/6J * CBA/J MGI:5825359
cx12
\Tcf4tm1Zhu/\Tcf4+
\Tcf3tm1Wein/\Tcf3+
involves: 129P2/OlaHsd MGI:3040600
cx13
\Tcf4tm1Zhu/\Tcf4+
\Tcf3tm1Zhu/\Tcf3+
involves: 129P2/OlaHsd MGI:3776854
cx14
\Id2tm1Yyk/\Id2tm1Yyk
\Tcf3tm1Cmu/\Tcf3+
involves: 129P2/OlaHsd * 129S1/Sv * 129X1/SvJ MGI:3776818
cx15
\Tcf12tm1Zhu/\Tcf12+
\Tcf3tm1Wein/\Tcf3+
involves: 129S4/SvJaeSor MGI:3040599


Genotype
MGI:3776820
ht1
Allelic
Composition
\Tcf3tm1Cmu/\Tcf3+
Genetic
Background
either: 129P2/OlaHsd-Tcf3tm1Cmu or (involves: 129P2/OlaHsd * FVB/N)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1Cmu mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• B220+IgM B cells are reduced to 58% compared to 64% in wild-type mice

hematopoietic system
• B220+IgM B cells are reduced to 58% compared to 64% in wild-type mice




Genotype
MGI:2680064
ht2
Allelic
Composition
\Tcf3tm1Wein/\Tcf3+
Genetic
Background
either: (involves: 129/Sv * 129S4/SvJaeSor) or (involves: 129S4/SvJaeSor * C57BL/6J)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1Wein mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• B cell numbers reduced by half in the spleen but not the bone marrow

immune system
• B cell numbers reduced by half in the spleen but not the bone marrow




Genotype
MGI:3804185
ht3
Allelic
Composition
\Tcf3tm1.1Mbu/\Tcf3+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1.1Mbu mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• mice exhibit a mild defect in adult B cell lymphopoiesis

immune system
• mice exhibit a mild defect in adult B cell lymphopoiesis




Genotype
MGI:4458208
ht4
Allelic
Composition
\Tcf3tm1(TCF3/HLF)Homy/\Tcf3+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1(TCF3/HLF)Homy mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice have a normal lifespan

hematopoietic system
N
• mice exhibit no abnormalities in peripheral blood




Genotype
MGI:3046427
ht5
Allelic
Composition
\Tcf3tm1Wein/\Tcf3+
Genetic
Background
involves: 129S4/SvJaeSor
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1Wein mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• the IgM+IgD- cell population is significantly reduced
• the IgM+IgD+ cell population is increased in the bone marrow
• the fraction of B cells expressing Ig-lambda is reduced
• the fraction of pre-B cells is reduced about 2 fold

immune system
• the IgM+IgD- cell population is significantly reduced
• the IgM+IgD+ cell population is increased in the bone marrow
• the fraction of B cells expressing Ig-lambda is reduced
• the fraction of pre-B cells is reduced about 2 fold




Genotype
MGI:5825360
cn6
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:5825356
cn7
Allelic
Composition
\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)
Tcf3tm1(PBX1)Mlc mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice develop acute leukemia with an incidence of 7% at 12 months of age
• leukemia cells are present in the bone marrow, spleen, lymph nodes and infiltrate multiple organs, including the CNS
• 94% of leukemias have a B cell precursor phenotype

hematopoietic system
• in leukemic mice
• progenitor B cells proliferate extensively in methylcellulose culture supplemented with IL-7, SCF, and FLT3 and are severely compromised in the their ability to differentiate into CD43- cells compared with progenitor B cells from controls indicating enhanced proliferation of progenitor B cells
• mice show perturbed early B cell progenitor cell differentiation
• leukemic blasts are arrested at the pro/pre-B stage of B cell precursor differentiation
• in leukemic mice
• in leukemic mice
• a lower percentage of B cells are seen in the peripheral blood over a 30 week period in healthy preleukemic mice
• decrease in immature and recirculating B cells in the bone marrow in healthy preleukemic mice
• leukemic mice present with leukocytosis
• enhanced proliferation of progenitor B cells
• preleukemic mice irradiated sublethally to deplete the endogenous B cell populations show regeneration of B cell progenitors with a dramatic expansion of B220lo progenitor cell population indicating enhanced B cell progenitor self-renewal

immune system
• in leukemic mice
• progenitor B cells proliferate extensively in methylcellulose culture supplemented with IL-7, SCF, and FLT3 and are severely compromised in the their ability to differentiate into CD43- cells compared with progenitor B cells from controls indicating enhanced proliferation of progenitor B cells
• mice show perturbed early B cell progenitor cell differentiation
• leukemic blasts are arrested at the pro/pre-B stage of B cell precursor differentiation
• a lower percentage of B cells are seen in the peripheral blood over a 30 week period in healthy preleukemic mice
• decrease in immature and recirculating B cells in the bone marrow in healthy preleukemic mice
• leukemic mice present with leukocytosis
• enhanced proliferation of progenitor B cells
• preleukemic mice irradiated sublethally to deplete the endogenous B cell populations show regeneration of B cell progenitors with a dramatic expansion of B220lo progenitor cell population indicating enhanced B cell progenitor self-renewal
• in leukemic mice

liver/biliary system
• in leukemic mice

growth/size/body
• in leukemic mice
• in leukemic mice

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
acute lymphoblastic leukemia DOID:9952 OMIM:247640
OMIM:613065
J:226241




Genotype
MGI:4458210
cn8
Allelic
Composition
\Tcf3tm1(TCF3/HLF)Homy/\Tcf3+
\Tg(Emu-Zfp521)1Homy/0
\Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1(TCF3/HLF)Homy mutation (0 available); any Tcf3 mutation (48 available)
Tg(Emu-Zfp521)1Homy mutation (1 available)
Tg(Mx1-cre)1Cgn mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• within 6 months, pIpC-treated mice die of leukemia

neoplasm
• pIpC-treated mice develop acute B-lineage leukemia by 6 months of age unlike control mice




Genotype
MGI:4458207
cn9
Allelic
Composition
\Tcf3tm1(TCF3/HLF)Homy/\Tcf3+
\Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1(TCF3/HLF)Homy mutation (0 available); any Tcf3 mutation (48 available)
Tg(Mx1-cre)1Cgn mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• pIpC-treated mice have a normal lifespan
• mice treated with pIpC and Moloney murine leukemia virus (MMLV) exhibit increased morbidity and mortality with all mice dying by 6 months of age unlike with similarly treated Tcf3tm1(TCF3/HLF)Homy heterozygotes

hematopoietic system
N
• pIpC-treated mice exhibit no abnormalities in peripheral blood
• pIpC-treated mice exhibit an increase in B cell precursors in the bone marrow compared with similarly treated Tcf3tm1(TCF3/HLF)Homy heterozygotes
• pIpC-treated mice exhibit an increase in B cell precursors in the bone marrow compared with similarly treated Tcf3tm1(TCF3/HLF)Homy heterozygotes

neoplasm
• mice treated with pIpC and Moloney murine leukemia virus (MMLV) exhibit increased morbidity and mortality with all mice dying by 6 months of age unlike with similarly treated Tcf3tm1(TCF3/HLF)Homy heterozygotes
• mice treated with pIpC and MMLV develop only acute B-progenitor and lineage marker negative leukemias as early as 2.6 months compared with similarly treated Tcf3tm1(TCF3/HLF)Homy heterozygotes that develop T cell leukemias at 4 to 6 months

homeostasis/metabolism
• pIpC-treated and Moloney murine leukemia virus (MMLV)-exposed mice develop microthrombi

immune system
• pIpC-treated mice exhibit an increase in B cell precursors in the bone marrow compared with similarly treated Tcf3tm1(TCF3/HLF)Homy heterozygotes
• pIpC-treated mice exhibit an increase in B cell precursors in the bone marrow compared with similarly treated Tcf3tm1(TCF3/HLF)Homy heterozygotes




Genotype
MGI:5825357
cn10
Allelic
Composition
\Tcf3tm1(PBX1)Mlc/\Tcf3+
\Cd79atm1(cre)Reth/\Cd79a+
Genetic
Background
involves: BALB/c * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cd79atm1(cre)Reth mutation (3 available); any Cd79a mutation (26 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 develop acute leukemia with an incidence of 53% at 12 months of age
• leukemia cells are present in the bone marrow, spleen, lymph nodes and infiltrate multiple organs, including the CNS
• 94% of leukemias have a B cell precursor phenotype

hematopoietic system
• in leukemic mice
• leukemic blasts are arrested at the pro/pre-B stage of B cell precursor differentiation
• in leukemic mice
• in leukemic mice
• a lower percentage of B cells are seen in the peripheral blood over a 30 week period in healthy preleukemic mice
• decrease in immature and recirculating B cells in the bone marrow in healthy preleukemic mice
• leukemic mice present with leukocytosis

immune system
• in leukemic mice
• leukemic blasts are arrested at the pro/pre-B stage of B cell precursor differentiation
• a lower percentage of B cells are seen in the peripheral blood over a 30 week period in healthy preleukemic mice
• decrease in immature and recirculating B cells in the bone marrow in healthy preleukemic mice
• leukemic mice present with leukocytosis
• in leukemic mice

liver/biliary system
• in leukemic mice

growth/size/body
• in leukemic mice
• in leukemic mice

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
acute lymphoblastic leukemia DOID:9952 OMIM:247640
OMIM:613065
J:226241




Genotype
MGI:5825359
cn11
Allelic
Composition
\Tcf3tm1(PBX1)Mlc/\Tcf3+
\Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: C57BL/6 * C57BL/6J * CBA/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1(PBX1)Mlc mutation (0 available); any Tcf3 mutation (48 available)
Tg(Mx1-cre)1Cgn mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice develop acute leukemia with an incidence of 59% at 12 months of age
• leukemia cells are present in the bone marrow, spleen, lymph nodes and infiltrate multiple organs, including the CNS
• 94% of leukemias have a B cell precursor phenotype

hematopoietic system
• in leukemic mice
• leukemic blasts are arrested at the pro/pre-B stage of B cell precursor differentiation
• in leukemic mice
• in leukemic mice
• a lower percentage of B cells are seen in the peripheral blood over a 30 week period in healthy preleukemic mice
• decrease in immature and recirculating B cells in the bone marrow in healthy preleukemic mice
• leukemic mice present with leukocytosis

immune system
• in leukemic mice
• leukemic blasts are arrested at the pro/pre-B stage of B cell precursor differentiation
• a lower percentage of B cells are seen in the peripheral blood over a 30 week period in healthy preleukemic mice
• decrease in immature and recirculating B cells in the bone marrow in healthy preleukemic mice
• leukemic mice present with leukocytosis
• in leukemic mice

liver/biliary system
• in leukemic mice

growth/size/body
• in leukemic mice
• in leukemic mice

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
acute lymphoblastic leukemia DOID:9952 OMIM:247640
OMIM:613065
J:226241




Genotype
MGI:3040600
cx12
Allelic
Composition
\Tcf4tm1Zhu/\Tcf4+
\Tcf3tm1Wein/\Tcf3+
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1Wein mutation (0 available); any Tcf3 mutation (48 available)
Tcf4tm1Zhu mutation (1 available); any Tcf4 mutation (61 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most homozygotes died within two weeks of birth

growth/size/body
• evident after birth

hematopoietic system
• 70% reduction in the number of pro-B cells

immune system
• 70% reduction in the number of pro-B cells




Genotype
MGI:3776854
cx13
Allelic
Composition
\Tcf4tm1Zhu/\Tcf4+
\Tcf3tm1Zhu/\Tcf3+
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf3tm1Zhu mutation (0 available); any Tcf3 mutation (48 available)
Tcf4tm1Zhu mutation (1 available); any Tcf4 mutation (61 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• the pontine nucleus develops normally




Genotype
MGI:3776818
cx14
Allelic
Composition
\Id2tm1Yyk/\Id2tm1Yyk
\Tcf3tm1Cmu/\Tcf3+
Genetic
Background
involves: 129P2/OlaHsd * 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Id2tm1Yyk mutation (0 available); any Id2 mutation (19 available)
Tcf3tm1Cmu mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• natural killer cell development is partially rescued in bone marrow
• absent in most mice
• absent in most mice
• absent in most mice

hematopoietic system
• natural killer cell development is partially rescued in bone marrow




Genotype
MGI:3040599
cx15
Allelic
Composition
\Tcf12tm1Zhu/\Tcf12+
\Tcf3tm1Wein/\Tcf3+
Genetic
Background
involves: 129S4/SvJaeSor
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tcf12tm1Zhu mutation (0 available); any Tcf12 mutation (75 available)
Tcf3tm1Wein mutation (0 available); any Tcf3 mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most homozygotes died within two weeks of birth

growth/size/body
• evident after birth

hematopoietic system
• 70% reduction in the number of pro-B cells

immune system
• 70% reduction in the number of pro-B cells





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last database update
03/25/2025
MGI 6.24
The Jackson Laboratory