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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Cops8tm1.1Nwe
targeted mutation 1.1, Ning Wei
MGI:3762120
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Cops8tm1.1Nwe/Cops8tm1.1Nwe involves: C57BL/6 MGI:3762121
cn2
 		Cops8tm1Nwe/Cops8tm1.1Nwe involves: 129S1/Sv * C57BL/6 MGI:3762123
cn3
 		Cops8tm1Nwe/Cops8tm1.1Nwe
Tg(Cd4-cre)1Cwi/? 		involves: 129S1/Sv * C57BL/6 * DBA/2 MGI:3762122


Genotype
MGI:3762121
hm1
Allelic
Composition		 Cops8tm1.1Nwe/Cops8tm1.1Nwe
Genetic
Background		 involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cops8tm1.1Nwe mutation (0 available); any Cops8 mutation (22 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging

embryo
abnormal inner cell mass proliferation ( J:126339 )
• during in vitro outgrowth, inner cell mass blastocysts of E3.5 embryos arrest prematurely

growth/size/body
embryonic growth retardation ( J:126339 )
• at E7.5
decreased embryo size ( J:126339 )
• at E7.5

cellular
abnormal inner cell mass proliferation ( J:126339 )
• during in vitro outgrowth, inner cell mass blastocysts of E3.5 embryos arrest prematurely




Genotype
MGI:3762123
cn2
Allelic
Composition		 Cops8tm1Nwe/Cops8tm1.1Nwe
Genetic
Background		 involves: 129S1/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cops8tm1.1Nwe mutation (0 available); any Cops8 mutation (22 available)
Cops8tm1Nwe mutation (1 available); any Cops8 mutation (22 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
cellular
abnormal cell cycle ( J:126339 )
• following exposure to a cre-retrovirus, mouse embryonic fibroblast cells cannot enter the cell cycle from quiescence induced by serum starvation




Genotype
MGI:3762122
cn3
Allelic
Composition		 Cops8tm1Nwe/Cops8tm1.1Nwe
Tg(Cd4-cre)1Cwi/?
Genetic
Background		 involves: 129S1/Sv * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cops8tm1.1Nwe mutation (0 available); any Cops8 mutation (22 available)
Cops8tm1Nwe mutation (1 available); any Cops8 mutation (22 available)
Tg(Cd4-cre)1Cwi mutation (12 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
immune system
decreased T cell number ( J:126339 )
• mature T cell numbers in the spleen and lymph nodes are decreased compared to in Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
• however, the proportion of T cells with naive, memory and regulatory phenotypes are normal
abnormal CD4-positive, alpha-beta T cell physiology ( J:126339 )
• CD4+ T cells are less responsive to IL-7 and exhibit a reduced survival compared to CD4+ T cells from IL-7-treated Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
abnormal T cell activation ( J:126339 )
• increase in cellular size following stimulation, an indication of activation, is substantially reduced in T cells compared to in T cells from Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
decreased T cell proliferation ( J:126339 )
• T cells stimulated with anti-CD3 and anti-CD28 or with phorbol 12-myristate 13-acetate (PMA) and ionomycin fail to proliferate as well as T cells from Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes even with the addition of IL-2
• cell cycling in T cells is reduced or absent compared to in T cells from Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
• however, no increase in T cell apoptosis is observed
decreased interleukin-2 secretion ( J:126339 )
• T cells stimulated with anti-CD3 and anti-CD28 or with phorbol 12-myristate 13-acetate (PMA) and ionomycin produce less IL-2 than similarly treated wild-type cells

hematopoietic system
decreased T cell number ( J:126339 )
• mature T cell numbers in the spleen and lymph nodes are decreased compared to in Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
• however, the proportion of T cells with naive, memory and regulatory phenotypes are normal
abnormal CD4-positive, alpha-beta T cell physiology ( J:126339 )
• CD4+ T cells are less responsive to IL-7 and exhibit a reduced survival compared to CD4+ T cells from IL-7-treated Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
abnormal T cell activation ( J:126339 )
• increase in cellular size following stimulation, an indication of activation, is substantially reduced in T cells compared to in T cells from Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
decreased T cell proliferation ( J:126339 )
• T cells stimulated with anti-CD3 and anti-CD28 or with phorbol 12-myristate 13-acetate (PMA) and ionomycin fail to proliferate as well as T cells from Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes even with the addition of IL-2
• cell cycling in T cells is reduced or absent compared to in T cells from Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
• however, no increase in T cell apoptosis is observed

cellular
decreased T cell proliferation ( J:126339 )
• T cells stimulated with anti-CD3 and anti-CD28 or with phorbol 12-myristate 13-acetate (PMA) and ionomycin fail to proliferate as well as T cells from Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes even with the addition of IL-2
• cell cycling in T cells is reduced or absent compared to in T cells from Cops8tm1Nwe Tg(CD4-cre)1Cwi heterozygotes
• however, no increase in T cell apoptosis is observed




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Send questions and comments to User Support. 		last database update
09/30/2025
MGI 6.24 		The Jackson Laboratory