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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(Tcrb2B4)1Mmd
transgene insertion 1, Mark M Davis
MGI:3688272
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cx1
Tcra-Jtm1Kgwa/Tcra-Jtm1Kgwa
Tg(Tcrb2B4)1Mmd/0
involves: 129P2/OlaHsd * C3H/HeJ * C57BL/6J MGI:3688406
cx2
Itktm1Ljb/Itktm1Ljb
Tg(Tcra2B4)1Mmd/?
Tg(Tcrb2B4)1Mmd/?
involves: C3H/HeJ * C57BL/6 * C57BL/10 MGI:4354594
cx3
Tg(H2KmPCC)2939Stoe/0
Tg(Tcra2B4)1Mmd/0
Tg(Tcrb2B4)1Mmd/0
involves: C3H/HeJ * C57BL/6 * SJL MGI:3688409
cx4
Dock2tm1Tsas/Dock2tm1Tsas
Tg(Tcra2B4)1Mmd/?
Tg(Tcrb2B4)1Mmd/?
involves: C57BL/6 MGI:3690240


Genotype
MGI:3688406
cx1
Allelic
Composition
Tcra-Jtm1Kgwa/Tcra-Jtm1Kgwa
Tg(Tcrb2B4)1Mmd/0
Genetic
Background
involves: 129P2/OlaHsd * C3H/HeJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
No mouse lines available in IMSR.
See publication links below for author information.
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• an increase in number from 5 to 50% in transgenic Tcra-expressing cells is observed in single positive cells; deletion of the transgenic TCR by secondary rearrangement is reduced significantly
• an increase from 3 to 30% in transgenic Tcra-expressing cells is observed in double-positive cells; deletion of the transgenic TCR by secondary rearrangement is reduced significantly

immune system
• an increase in number from 5 to 50% in transgenic Tcra-expressing cells is observed in single positive cells; deletion of the transgenic TCR by secondary rearrangement is reduced significantly
• an increase from 3 to 30% in transgenic Tcra-expressing cells is observed in double-positive cells; deletion of the transgenic TCR by secondary rearrangement is reduced significantly




Genotype
MGI:4354594
cx2
Allelic
Composition
Itktm1Ljb/Itktm1Ljb
Tg(Tcra2B4)1Mmd/?
Tg(Tcrb2B4)1Mmd/?
Genetic
Background
involves: C3H/HeJ * C57BL/6 * C57BL/10
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Itktm1Ljb mutation (0 available); any Itk mutation (48 available)
Tg(Tcra2B4)1Mmd mutation (0 available)
Tg(Tcrb2B4)1Mmd mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• the percentages and absolute numbers of CD4+ single positive thymocytes is drastically reduced compared to wild-type and transgenic controls
• peripheral CD4 T cell numbers are also reduced

hematopoietic system
• the percentages and absolute numbers of CD4+ single positive thymocytes is drastically reduced compared to wild-type and transgenic controls
• peripheral CD4 T cell numbers are also reduced




Genotype
MGI:3688409
cx3
Allelic
Composition
Tg(H2KmPCC)2939Stoe/0
Tg(Tcra2B4)1Mmd/0
Tg(Tcrb2B4)1Mmd/0
Genetic
Background
involves: C3H/HeJ * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(H2KmPCC)2939Stoe mutation (1 available)
Tg(Tcra2B4)1Mmd mutation (0 available)
Tg(Tcrb2B4)1Mmd mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• mice have no in vitro response to cytochrome C while spleen cells from Tcra-knockin, transgenic Tcrb-expressing mice exhibit a vigorous proliferation response
• number of thymocytes (2-4 x 106) in tolerant mice is reduced 30 to 40-fold compared with normal TCR transgenic mice (Tg(H2KmPCC)2939Stoe-negative, TcraTcrb-positive mice; 70-90 x 106 cells)
• number of thymocytes is drastically reduced and few thymocytes undergo natural development using the endogenous Tcra/transgenic Tcrb chain compared to Tcra-knockin, transgenic Tcrb-expressing mice

hematopoietic system
• mice have no in vitro response to cytochrome C while spleen cells from Tcra-knockin, transgenic Tcrb-expressing mice exhibit a vigorous proliferation response
• number of thymocytes (2-4 x 106) in tolerant mice is reduced 30 to 40-fold compared with normal TCR transgenic mice (Tg(H2KmPCC)2939Stoe-negative, TcraTcrb-positive mice; 70-90 x 106 cells)
• number of thymocytes is drastically reduced and few thymocytes undergo natural development using the endogenous Tcra/transgenic Tcrb chain compared to Tcra-knockin, transgenic Tcrb-expressing mice

endocrine/exocrine glands
• number of thymocytes (2-4 x 106) in tolerant mice is reduced 30 to 40-fold compared with normal TCR transgenic mice (Tg(H2KmPCC)2939Stoe-negative, TcraTcrb-positive mice; 70-90 x 106 cells)

cellular
• mice have no in vitro response to cytochrome C while spleen cells from Tcra-knockin, transgenic Tcrb-expressing mice exhibit a vigorous proliferation response




Genotype
MGI:3690240
cx4
Allelic
Composition
Dock2tm1Tsas/Dock2tm1Tsas
Tg(Tcra2B4)1Mmd/?
Tg(Tcrb2B4)1Mmd/?
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dock2tm1Tsas mutation (1 available); any Dock2 mutation (142 available)
Tg(Tcra2B4)1Mmd mutation (0 available)
Tg(Tcrb2B4)1Mmd mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• numbers reduced to about 3% of what is seen in controls
• more susceptible to apoptosis
• reduced in number and ratio in relation to CD8+ T cells is also reduced
• proliferative responses are reduced

hematopoietic system
• numbers reduced to about 3% of what is seen in controls
• more susceptible to apoptosis
• reduced in number and ratio in relation to CD8+ T cells is also reduced
• proliferative responses are reduced





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last database update
04/30/2024
MGI 6.23
The Jackson Laboratory