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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Vav1tm1Tyb
targeted mutation 1, Victor L J Tybulewicz
MGI:2387838
Summary 13 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Vav1tm1Tyb/Vav1tm1Tyb C.129S2-Vav1tm1Tyb MGI:3689305
hm2
Vav1tm1Tyb/Vav1tm1Tyb either: (involves: 129S4/SvJae * 129S8/SvEv) or (involves: 129S4/SvJae * 129S8/SvEv * C57BL/10 * C57BR/cd) MGI:5448160
hm3
Vav1tm1Tyb/Vav1tm1Tyb involves: 129S2/SvPas * C57BL/10 * C57BR/cd MGI:3689306
hm4
Vav1tm1Tyb/Vav1tm1Tyb involves: 129S2/SvPas MGI:3689304
hm5
Vav1tm1Tyb/Vav1tm1Tyb involves: 129S2/SvPas * 129S8/SvEv MGI:3689302
hm6
Vav1tm1Tyb/Vav1tm1Tyb involves: 129S4/SvJae * 129S8/SvEv * C57BL/10 * C57BR/cd MGI:3689303
cx7
Vav1tm1Tyb/Vav1tm1Tyb
Vav2tm1Tnr/Vav2tm1Tnr
involves: 129P2/OlaHsd * 129S2/SvPas MGI:3843243
cx8
Cblbtm1Pngr/Cblbtm1Pngr
Vav1tm1Tyb/Vav1tm1Tyb
Wastm1Sbs/Wastm1Sbs
involves: 129P2/OlaHsd * 129S2/SvPas * 129S6/SvEvTac MGI:3528380
cx9
Vav1tm1Tyb/Vav1tm1Tyb
Vav2tm1Kdf/Vav2tm1Kdf
involves: 129S1/Sv * 129S2/SvPas MGI:4429590
cx10
Vav1tm1Tyb/Vav1tm1Tyb
Vav2tm1Kdf/Vav2tm1Kdf
Vav3tm1Swat/Vav3tm1Swat
involves: 129S1/Sv * 129S2/SvPas * 129S6/SvEvTac MGI:4362058
cx11
Vav1tm1Tyb/Vav1tm1Tyb
Vav2tm1Kdf/Vav2tm1Kdf
Vav3tm1Swat/Vav3tm1Swat
involves: 129S1/Sv * 129S2/SvPas * 129S6/SvEvTac * C57BL/6 MGI:2683655
cx12
Rasgrf2tm1Esn/Rasgrf2tm1Esn
Vav1tm1Tyb/Vav1tm1Tyb
involves: 129S1/Sv * 129S2/SvPas * C57BL/10 * C57BR/cd MGI:4362054
cx13
Vav1tm1Tyb/Vav1tm1Tyb
Vav3tm1Swat/Vav3tm1Swat
involves: 129S2/SvPas * 129S6/SvEvTac * C57BL/6 MGI:4429589


Genotype
MGI:3689305
hm1
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Genetic
Background
C.129S2-Vav1tm1Tyb
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• deletion of CD4+ cells expressing Vbeta3, 5, and 11 is less than in wild-type mice suggesting impaired negative selection

hematopoietic system
• deletion of CD4+ cells expressing Vbeta3, 5, and 11 is less than in wild-type mice suggesting impaired negative selection




Genotype
MGI:5448160
hm2
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Genetic
Background
either: (involves: 129S4/SvJae * 129S8/SvEv) or (involves: 129S4/SvJae * 129S8/SvEv * C57BL/10 * C57BR/cd)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
phenotype observed in females
phenotype observed in males
N normal phenotype



Genotype
MGI:3689306
hm3
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Genetic
Background
involves: 129S2/SvPas * C57BL/10 * C57BR/cd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• when stimulated with anti-CD3 antibodies or engagement of CD3 and CD28 receptors, T cell proliferation is impaired compared to in similarly treated wild-type cells

immune system
• Staphylococcal enterotoxin B-induced deletion of single positive T cells is less than in wild-type mice
• when stimulate by anti-CD3 and anti-CD3 and anti-CD28 antibodies, CD4+ T cells exhibit reduced blast population compared with similarly treated wild-type cells
• when stimulated with anti-CD3 antibodies or engagement of CD3 and CD28 receptors, T cell proliferation is impaired compared to in similarly treated wild-type cells
• T cells stimulated with anti-CD3 and anti-CD28 antibodies produce less IL2 than similarly treated wild-type or Rasgrf2tm1Esn cells
• T cells stimulated with anti-CD3 or anti-CD3 and anti-CD28 antibodies produce less TNF-alpha than similarly treated wild-type or Rasgrf2tm1Esn cells

hematopoietic system
• Staphylococcal enterotoxin B-induced deletion of single positive T cells is less than in wild-type mice
• when stimulate by anti-CD3 and anti-CD3 and anti-CD28 antibodies, CD4+ T cells exhibit reduced blast population compared with similarly treated wild-type cells
• when stimulated with anti-CD3 antibodies or engagement of CD3 and CD28 receptors, T cell proliferation is impaired compared to in similarly treated wild-type cells




Genotype
MGI:3689304
hm4
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• about a 50% reduction in cell number
• while the overall absolute number of double negative cells is similar to wild-type as are the numbers of early stage double negative cell subpopulation, the number of CD44-CD25+ cells is increased about 2-fold
• small decrease in mature IgMloIgDhi B cells
• about a 7- to 10-fold reduction in the number of single positive cells is seen in the thymus and in peripheral T cell populations in the spleen and lymph nodes
• greatly reduced T cell receptor-induced calcium fluxes (J:79323)
• calcium fluxes induced by anti-CD3 antibody cross-linking are diminished in T cells (J:86654)
• T cells show a partial defect in proliferative responses to stimulation with anti-CD3 with or without anti-CD28 antibodies
• ability of T cells to generate blasts when stimulated is reduced by 3- to 4-fold
• production of IFN-gamma by T cells in response to TCR stimulation is reduced
• production of IL-2 by T cells in response to TCR stimulation is reduced

hematopoietic system
• about a 50% reduction in cell number
• while the overall absolute number of double negative cells is similar to wild-type as are the numbers of early stage double negative cell subpopulation, the number of CD44-CD25+ cells is increased about 2-fold
• small decrease in mature IgMloIgDhi B cells
• about a 7- to 10-fold reduction in the number of single positive cells is seen in the thymus and in peripheral T cell populations in the spleen and lymph nodes
• greatly reduced T cell receptor-induced calcium fluxes (J:79323)
• calcium fluxes induced by anti-CD3 antibody cross-linking are diminished in T cells (J:86654)
• T cells show a partial defect in proliferative responses to stimulation with anti-CD3 with or without anti-CD28 antibodies
• ability of T cells to generate blasts when stimulated is reduced by 3- to 4-fold

endocrine/exocrine glands
• about a 50% reduction in cell number

cellular
• T cells show a partial defect in proliferative responses to stimulation with anti-CD3 with or without anti-CD28 antibodies
• ability of T cells to generate blasts when stimulated is reduced by 3- to 4-fold




Genotype
MGI:3689302
hm5
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Genetic
Background
involves: 129S2/SvPas * 129S8/SvEv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• significant reduction in CD4+ cell numbers
• significant reduction in CD5 and CD2 expression and T cell receptor-induced calcium fluxes
• reduced CD4+ and CD8+ cell proliferation in response to anti-CD3 alone or anti-CD3 plus anti-CD28

hematopoietic system
• significant reduction in CD4+ cell numbers
• significant reduction in CD5 and CD2 expression and T cell receptor-induced calcium fluxes
• reduced CD4+ and CD8+ cell proliferation in response to anti-CD3 alone or anti-CD3 plus anti-CD28

cellular
• reduced CD4+ and CD8+ cell proliferation in response to anti-CD3 alone or anti-CD3 plus anti-CD28




Genotype
MGI:3689303
hm6
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Genetic
Background
involves: 129S4/SvJae * 129S8/SvEv * C57BL/10 * C57BR/cd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• deletion of CD4+ cells expressing Vbeta5, 11, and 12 is less than in wild-type mice suggesting impaired negative selection

hematopoietic system
• deletion of CD4+ cells expressing Vbeta5, 11, and 12 is less than in wild-type mice suggesting impaired negative selection




Genotype
MGI:3843243
cx7
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Vav2tm1Tnr/Vav2tm1Tnr
Genetic
Background
involves: 129P2/OlaHsd * 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
Vav2tm1Tnr mutation (0 available); any Vav2 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• the number of IgMloIgDhi B cells is reduced in the lymph nodes compared to in wild-type mice
• the number of IgMhiIgDlo B cells is reduced in the spleen compared to in wild-type mice
• reduced 50% in the bone marrow and one-third in the spleen
• the number of re-circulating follicular B cells is reduced 80% to 90% compared to in wild-type mice
• BCR-stimulated B cells exhibit impaired calcium response compared to in similarly treated wild-type mice
• in response to BCR stimulation

hematopoietic system
• the number of IgMloIgDhi B cells is reduced in the lymph nodes compared to in wild-type mice
• the number of IgMhiIgDlo B cells is reduced in the spleen compared to in wild-type mice
• reduced 50% in the bone marrow and one-third in the spleen
• the number of re-circulating follicular B cells is reduced 80% to 90% compared to in wild-type mice
• BCR-stimulated B cells exhibit impaired calcium response compared to in similarly treated wild-type mice
• in response to BCR stimulation

cellular
• in response to BCR stimulation




Genotype
MGI:3528380
cx8
Allelic
Composition
Cblbtm1Pngr/Cblbtm1Pngr
Vav1tm1Tyb/Vav1tm1Tyb
Wastm1Sbs/Wastm1Sbs
Genetic
Background
involves: 129P2/OlaHsd * 129S2/SvPas * 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cblbtm1Pngr mutation (6 available); any Cblb mutation (56 available)
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
Wastm1Sbs mutation (2 available); any Was mutation (11 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• introduction of the Cblbtm1Pngr mutation into a Wastm1Sbs/Vav1tm1Tyb double null background fails to restore T cell responses and receptor clustering, indicating that WAS protein is critical for deregulated proliferation and membrane receptor reorganization of Cblbtm1Pngr mutant T cells

hematopoietic system
• introduction of the Cblbtm1Pngr mutation into a Wastm1Sbs/Vav1tm1Tyb double null background fails to restore T cell responses and receptor clustering, indicating that WAS protein is critical for deregulated proliferation and membrane receptor reorganization of Cblbtm1Pngr mutant T cells




Genotype
MGI:4429590
cx9
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Vav2tm1Kdf/Vav2tm1Kdf
Genetic
Background
involves: 129S1/Sv * 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
Vav2tm1Kdf mutation (1 available); any Vav2 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• B cells show reduced proliferation in response to Ig receptor stimulation
• ability of T cells to generate blasts when stimulated is reduced by 3- to 4-fold, indicating a proliferation defect
• 2- to 3-fold reduction in mature IgMloIgDhi B cells
• few peripheral T cells
• production of IFN-gamma by T cells in response to TCR stimulation is reduced
• production of IL-2 by T cells in response to TCR stimulation is reduced

hematopoietic system
• B cells show reduced proliferation in response to Ig receptor stimulation
• ability of T cells to generate blasts when stimulated is reduced by 3- to 4-fold, indicating a proliferation defect
• 2- to 3-fold reduction in mature IgMloIgDhi B cells
• few peripheral T cells

endocrine/exocrine glands

cellular
• B cells show reduced proliferation in response to Ig receptor stimulation
• ability of T cells to generate blasts when stimulated is reduced by 3- to 4-fold, indicating a proliferation defect




Genotype
MGI:4362058
cx10
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Vav2tm1Kdf/Vav2tm1Kdf
Vav3tm1Swat/Vav3tm1Swat
Genetic
Background
involves: 129S1/Sv * 129S2/SvPas * 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
Vav2tm1Kdf mutation (1 available); any Vav2 mutation (45 available)
Vav3tm1Swat mutation (0 available); any Vav3 mutation (55 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• LPS- or peptidoglycan-stimulated reactive oxygen intermediate (ROI) production by neutrophils is blocked compared to in similarly treated wild-type cells
• however, ROI production in response to PMA stimulation is normal
• NK cells exhibit reduced conjugation with RMA-S cells compared with wild-type cells
• LPS-stimulated bone marrow-derived macrophages fail to generate oxidative burst unlike similarly treated wild-type cells
• however, mice exhibit normal bone marrow-derived macrophages response to PMA stimulation and reactive nitrogen and prostaglandin production in response to LPS
• despite normal phagocytosis, bone marrow-derived macrophages stimulated with unopsonized heat-killed E. coli fail to generate reactive oxygen intermediate unlike similarly treated wild-type cells
• from LPS-stimulated bone marrow-derived macrophages
• from LPS-stimulated bone marrow-derived macrophages

hematopoietic system
• LPS- or peptidoglycan-stimulated reactive oxygen intermediate (ROI) production by neutrophils is blocked compared to in similarly treated wild-type cells
• however, ROI production in response to PMA stimulation is normal
• NK cells exhibit reduced conjugation with RMA-S cells compared with wild-type cells
• LPS-stimulated bone marrow-derived macrophages fail to generate oxidative burst unlike similarly treated wild-type cells
• however, mice exhibit normal bone marrow-derived macrophages response to PMA stimulation and reactive nitrogen and prostaglandin production in response to LPS
• despite normal phagocytosis, bone marrow-derived macrophages stimulated with unopsonized heat-killed E. coli fail to generate reactive oxygen intermediate unlike similarly treated wild-type cells




Genotype
MGI:2683655
cx11
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Vav2tm1Kdf/Vav2tm1Kdf
Vav3tm1Swat/Vav3tm1Swat
Genetic
Background
involves: 129S1/Sv * 129S2/SvPas * 129S6/SvEvTac * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
Vav2tm1Kdf mutation (1 available); any Vav2 mutation (45 available)
Vav3tm1Swat mutation (0 available); any Vav3 mutation (55 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• T2 cells are reduced approximately 2-fold
• increase in the proportion of immature cells
• numbers of transitional 1 (T1) and newly formed B cells are increased
• immature B lineage cells accumulate in the periphery and development is arrested at a late transitional (T1/T2) stage
• blocked at an early stage in the thymus, at the DN3 to DN4 transition
• 2- to 3-fold reduction in mature IgMloIgDhi B cells
• few peripheral T cells
• 50 to 100 fold reduction relative to wild-type
• anti-Ig induced calcium responses are severely disrupted in B cells
• B cells fail to proliferate in response to Ig receptor stimulation
• mature B cells that are present in mutants fail to proliferate in response to stimulation with anti-Ig antibodies
• fail to produce any anti-TNP antibodies in response to TI-2 antigen
• fail to produce anti-TNP-specific IgG1 antibodies after immunization
• fail to produce anti-TNP-specific IgG2b antibodies after immunization
• fail to produce anti-TNP-specific IgG3 antibodies after immunization
• fail to produce anti-TNP-specific IgM antibodies after immunization
• calcium fluxes induced by anti-CD3 antibody cross-linking are completely disrupted in T cells
• T cells do not exhibit proliferative responses to stimulation with anti-CD3 with or without anti-CD28 antibodies
• T cells are unable to generate blasts when stimulated
• failure to mount either T-dependent or T-independent humoral responses
• mutant T cells do not produce IFN-gamma in response to TCR stimulation
• mutant T cells do not produce IL-2 in response to TCR stimulation

digestive/alimentary system
• the upper zone surface of epithelial cells in the cecum and ascending colon are shorted than in wild-type mice
• epithelial cell heights in the cecum and ascending colon decrease between the middle and upper zones unlike in wild-type mice
• upper zone enterocyte differentiation, as determined by marker staining, is incomplete compared to in wild-type mice
• beyond 6 weeks, mice develop spontaneous mucosal ulcers in the cecum and colon unlike wild-type mice

homeostasis/metabolism
• even after 10 days, mice fail to exhibit complete healing of colonic mucosa injury unlike similarly treated wild-type mice

hematopoietic system
• T2 cells are reduced approximately 2-fold
• increase in the proportion of immature cells
• numbers of transitional 1 (T1) and newly formed B cells are increased
• immature B lineage cells accumulate in the periphery and development is arrested at a late transitional (T1/T2) stage
• blocked at an early stage in the thymus, at the DN3 to DN4 transition
• 2- to 3-fold reduction in mature IgMloIgDhi B cells
• few peripheral T cells
• 50 to 100 fold reduction relative to wild-type
• anti-Ig induced calcium responses are severely disrupted in B cells
• B cells fail to proliferate in response to Ig receptor stimulation
• mature B cells that are present in mutants fail to proliferate in response to stimulation with anti-Ig antibodies
• fail to produce any anti-TNP antibodies in response to TI-2 antigen
• fail to produce anti-TNP-specific IgG1 antibodies after immunization
• fail to produce anti-TNP-specific IgG2b antibodies after immunization
• fail to produce anti-TNP-specific IgG3 antibodies after immunization
• fail to produce anti-TNP-specific IgM antibodies after immunization
• calcium fluxes induced by anti-CD3 antibody cross-linking are completely disrupted in T cells
• T cells do not exhibit proliferative responses to stimulation with anti-CD3 with or without anti-CD28 antibodies
• T cells are unable to generate blasts when stimulated

endocrine/exocrine glands
• 50 to 100 fold reduction relative to wild-type

cellular
• B cells fail to proliferate in response to Ig receptor stimulation
• mature B cells that are present in mutants fail to proliferate in response to stimulation with anti-Ig antibodies
• T cells do not exhibit proliferative responses to stimulation with anti-CD3 with or without anti-CD28 antibodies
• T cells are unable to generate blasts when stimulated




Genotype
MGI:4362054
cx12
Allelic
Composition
Rasgrf2tm1Esn/Rasgrf2tm1Esn
Vav1tm1Tyb/Vav1tm1Tyb
Genetic
Background
involves: 129S1/Sv * 129S2/SvPas * C57BL/10 * C57BR/cd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rasgrf2tm1Esn mutation (0 available); any Rasgrf2 mutation (73 available)
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• when stimulate by anti-CD3 antibodies, CD4+ T cells exhibit reduced blast population compared with similarly treated wild-type cells
• stimulation of CD4+ or CD8+ T cells with anti-CD3 and anti-CD28 antibodies, restores blast populations to levels observed in similarly treated cells from Vav1tm1Tyb
• when stimulated with anti-CD3 antibodies, T cells exhibit reduced T cell proliferation compared with similarly treated wild-type mice or single homozygotes
• when stimulated with engagement of CD3 and CD28 receptors, helper T cell proliferation is impaired compared to in similarly treated wild-type cells to the same extent as in similarly treated T cells from Vav1tm1Tyb mice while proliferation of cytotoxic T cells is only partially restored
• T cells stimulated with anti-CD3 and anti-CD28 antibodies produce less IL2 than similarly treated wild-type or Rasgrf2tm1Esn cells
• T cells stimulated with anti-CD3 or anti-CD3 and anti-CD28 antibodies produce less TNF-alpha than similarly treated wild-type or Rasgrf2tm1Esn cells

hematopoietic system
• when stimulate by anti-CD3 antibodies, CD4+ T cells exhibit reduced blast population compared with similarly treated wild-type cells
• stimulation of CD4+ or CD8+ T cells with anti-CD3 and anti-CD28 antibodies, restores blast populations to levels observed in similarly treated cells from Vav1tm1Tyb
• when stimulated with anti-CD3 antibodies, T cells exhibit reduced T cell proliferation compared with similarly treated wild-type mice or single homozygotes
• when stimulated with engagement of CD3 and CD28 receptors, helper T cell proliferation is impaired compared to in similarly treated wild-type cells to the same extent as in similarly treated T cells from Vav1tm1Tyb mice while proliferation of cytotoxic T cells is only partially restored

cellular
• when stimulated with anti-CD3 antibodies, T cells exhibit reduced T cell proliferation compared with similarly treated wild-type mice or single homozygotes
• when stimulated with engagement of CD3 and CD28 receptors, helper T cell proliferation is impaired compared to in similarly treated wild-type cells to the same extent as in similarly treated T cells from Vav1tm1Tyb mice while proliferation of cytotoxic T cells is only partially restored




Genotype
MGI:4429589
cx13
Allelic
Composition
Vav1tm1Tyb/Vav1tm1Tyb
Vav3tm1Swat/Vav3tm1Swat
Genetic
Background
involves: 129S2/SvPas * 129S6/SvEvTac * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vav1tm1Tyb mutation (2 available); any Vav1 mutation (58 available)
Vav3tm1Swat mutation (0 available); any Vav3 mutation (55 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• B cells show diminished proliferation in response to Ig receptor stimulation
• T cells are unable to generate blasts when stimulated, indicating a proliferation defect
• small decrease in mature IgMloIgDhi B cells
• T cell numbers are reduced more than in single Vav1 homozygotes
• reduction in peripheral T cells
• mutant T cells do not produce IFN-gamma in response to TCR stimulation
• mutant T cells do not produce IL-2 in response to TCR stimulation

hematopoietic system
• B cells show diminished proliferation in response to Ig receptor stimulation
• T cells are unable to generate blasts when stimulated, indicating a proliferation defect
• small decrease in mature IgMloIgDhi B cells
• T cell numbers are reduced more than in single Vav1 homozygotes
• reduction in peripheral T cells

cellular
• B cells show diminished proliferation in response to Ig receptor stimulation
• T cells are unable to generate blasts when stimulated, indicating a proliferation defect





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last database update
05/07/2024
MGI 6.23
The Jackson Laboratory