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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ctcftm2Gal
targeted mutation 2, Niels Galjart
MGI:3663291
Summary 5 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Ctcftm2Gal/Ctcftm2Gal
Rag2tm1Fwa/Rag2tm1Fwa
Tg(Lck-cre)1Cwi/0
involves: 129P2/OlaHsd * 129S/SvEv * C57BL/6 * C57BL/10 MGI:3829023
cn2
Ctcftm2Gal/Ctcftm2Gal
Tg(Lck-cre)1Cwi/0
involves: 129P2/OlaHsd * C57BL/6 MGI:3829016
cn3
Ctcftm2Gal/Ctcftm2Gal
Tg(Lck-cre)1Cwi/0
Tg(TcraTcrb)425Cbn/0
involves: 129P2/OlaHsd * C57BL/6 MGI:3829020
cn4
Ctcftm2Gal/Ctcf+
Tg(Lck-cre)1Cwi/0
involves: 129P2/OlaHsd * C57BL/6 MGI:3829017
cn5
Ctcftm2Gal/Ctcftm2Gal
Tg(Lck-cre)1Cwi/0
Tg(TcraH-Y,TcrbH-Y)71Vbo/0
involves: 129P2/OlaHsd * C57BL/6 * C57BL/10 * DBA/2J MGI:3829022


Genotype
MGI:3829023
cn1
Allelic
Composition
Ctcftm2Gal/Ctcftm2Gal
Rag2tm1Fwa/Rag2tm1Fwa
Tg(Lck-cre)1Cwi/0
Genetic
Background
involves: 129P2/OlaHsd * 129S/SvEv * C57BL/6 * C57BL/10
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctcftm2Gal mutation (0 available); any Ctcf mutation (80 available)
Rag2tm1Fwa mutation (45 available); any Rag2 mutation (119 available)
Tg(Lck-cre)1Cwi mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• despite increased double positive T cell production stimulated by anti-CD3epsilon treatment, mice produce fewer double positive T cells compared to similarly treated Rag2tm1Fwa homozygotes

hematopoietic system
• despite increased double positive T cell production stimulated by anti-CD3epsilon treatment, mice produce fewer double positive T cells compared to similarly treated Rag2tm1Fwa homozygotes




Genotype
MGI:3829016
cn2
Allelic
Composition
Ctcftm2Gal/Ctcftm2Gal
Tg(Lck-cre)1Cwi/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctcftm2Gal mutation (0 available); any Ctcf mutation (80 available)
Tg(Lck-cre)1Cwi mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• cells at the DN3L to immature single positive stage are smaller than in wild-type mice while double positive cells are larger than in wild-type mice
• alpha beta T cell differentiation is defective
• the number of DN3, DN4 and immature single positive cells is increased compared to in wild-type mice
• mice exhibit only a 4-fold increase in thymocytes during the transition from immature single positive to double positive T cells compared to a 90-fold increase in wild-type mice
• however, sigma delta T cell differentiation and TCR rearrangement are normal
• mice exhibit a defect in the transition from immature single positive cells to double positive cells
• the number of immature single positive T cells undergoing cell cycling is half as many as in wild-type mice
• the number of double negative DN3 and DN4 cells is increased compared to in wild-type mice
• the numbers of mature CD4+ and CD8+ cells in the spleen and lymph nodes are reduced compared to in wild-type mice
• however, the ratio of mature single positive cells to double positive cells is normal
• the numbers of mature CD4+ and CD8+ cells in the spleen and lymph nodes are reduced compared to in wild-type mice
• however, the ratio of mature single positive cells to double positive cells is normal
• the number of mature single positive T cells is decreased compared to in wild-type mice
• the number of immature single positive cells in the thymus is increased compared to in wild-type mice

hematopoietic system
• cells at the DN3L to immature single positive stage are smaller than in wild-type mice while double positive cells are larger than in wild-type mice
• alpha beta T cell differentiation is defective
• the number of DN3, DN4 and immature single positive cells is increased compared to in wild-type mice
• mice exhibit only a 4-fold increase in thymocytes during the transition from immature single positive to double positive T cells compared to a 90-fold increase in wild-type mice
• however, sigma delta T cell differentiation and TCR rearrangement are normal
• mice exhibit a defect in the transition from immature single positive cells to double positive cells
• the number of immature single positive T cells undergoing cell cycling is half as many as in wild-type mice
• the number of double negative DN3 and DN4 cells is increased compared to in wild-type mice
• the numbers of mature CD4+ and CD8+ cells in the spleen and lymph nodes are reduced compared to in wild-type mice
• however, the ratio of mature single positive cells to double positive cells is normal
• the numbers of mature CD4+ and CD8+ cells in the spleen and lymph nodes are reduced compared to in wild-type mice
• however, the ratio of mature single positive cells to double positive cells is normal
• the number of mature single positive T cells is decreased compared to in wild-type mice
• the number of immature single positive cells in the thymus is increased compared to in wild-type mice

endocrine/exocrine glands




Genotype
MGI:3829020
cn3
Allelic
Composition
Ctcftm2Gal/Ctcftm2Gal
Tg(Lck-cre)1Cwi/0
Tg(TcraTcrb)425Cbn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctcftm2Gal mutation (0 available); any Ctcf mutation (80 available)
Tg(Lck-cre)1Cwi mutation (3 available)
Tg(TcraTcrb)425Cbn mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• T cell development is more severely arrested than in Ctcftm1Laat/Ctcftm1Laat Tg(Lck-cre)1Cwi mice
• mice exhibit an almost complete lack of mature T cells in the spleen
• the number of immature single positive cells in the thymus is increased compared to in wild-type mice

hematopoietic system
• T cell development is more severely arrested than in Ctcftm1Laat/Ctcftm1Laat Tg(Lck-cre)1Cwi mice
• mice exhibit an almost complete lack of mature T cells in the spleen
• the number of immature single positive cells in the thymus is increased compared to in wild-type mice




Genotype
MGI:3829017
cn4
Allelic
Composition
Ctcftm2Gal/Ctcf+
Tg(Lck-cre)1Cwi/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctcftm2Gal mutation (0 available); any Ctcf mutation (80 available)
Tg(Lck-cre)1Cwi mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• modestly
• the numbers of mature CD4+ and CD8+ cells in the spleen and lymph nodes are reduced compared to in wild-type mice
• however, the ratio of mature single positive cells to double positive cells is normal
• the numbers of mature CD4+ and CD8+ cells in the spleen and lymph nodes are reduced compared to in wild-type mice
• however, the ratio of mature single positive cells to double positive cells is normal

hematopoietic system
• modestly
• the numbers of mature CD4+ and CD8+ cells in the spleen and lymph nodes are reduced compared to in wild-type mice
• however, the ratio of mature single positive cells to double positive cells is normal
• the numbers of mature CD4+ and CD8+ cells in the spleen and lymph nodes are reduced compared to in wild-type mice
• however, the ratio of mature single positive cells to double positive cells is normal

endocrine/exocrine glands
• modestly




Genotype
MGI:3829022
cn5
Allelic
Composition
Ctcftm2Gal/Ctcftm2Gal
Tg(Lck-cre)1Cwi/0
Tg(TcraH-Y,TcrbH-Y)71Vbo/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * C57BL/10 * DBA/2J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctcftm2Gal mutation (0 available); any Ctcf mutation (80 available)
Tg(Lck-cre)1Cwi mutation (3 available)
Tg(TcraH-Y,TcrbH-Y)71Vbo mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• T cell development is more severely arrested than in Ctcftm1Laat/Ctcftm1Laat Tg(Lck-cre)1Cwi mice
• mice exhibit a severe block to T cell development at the immature single positive stage
• mice exhibit a almost complete lack of double positive cells in the thymus
• strongly reduced in the spleen
• strongly reduced in the spleen

hematopoietic system
• T cell development is more severely arrested than in Ctcftm1Laat/Ctcftm1Laat Tg(Lck-cre)1Cwi mice
• mice exhibit a severe block to T cell development at the immature single positive stage
• mice exhibit a almost complete lack of double positive cells in the thymus
• strongly reduced in the spleen
• strongly reduced in the spleen





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory