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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Myctm2.1Atp
targeted mutation 2.1, Andreas Trumpp
MGI:2177581
Summary 8 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Myctm2.1Atp/Myc+ involves: 129P2/OlaHsd * C57BL/6 * SJL MGI:3811817
ht2
Myctm1Atp/Myctm2.1Atp involves: 129P2/OlaHsd * C57BL/6 * FVB/N * SJL MGI:3811819
cn3
Hnf4atm1(cre)Sdv/Hnf4a+
Myctm2.1Atp/Myctm2.1Atp
involves: 129P2/OlaHsd * 129S/SvEv MGI:3811917
cn4
Myctm2.1Atp/Myctm2.1Atp
Edil3Tg(Sox2-cre)1Amc/Edil3+
involves: 129P2/OlaHsd * C57BL/6 * CBA MGI:3811915
cn5
Myctm2.1Atp/Myctm2.1Atp
Tg(Mx1-cre)1Cgn/0
involves: 129P2/OlaHsd * C57BL/6 * CBA * FVB/N * SJL MGI:3811825
cn6
Myctm1Atp/Myctm2.1Atp
Tg(Mx1-cre)1Cgn/0
involves: 129P2/OlaHsd * C57BL/6 * CBA * FVB/N * SJL MGI:3811820
cn7
Myctm2.1Atp/Myctm2.1Atp
Tg(Pdx1-cre)1Herr/0
involves: 129P2/OlaHsd * C57BL/6J * CBA/J MGI:4412367
cn8
Myctm2.1Atp/Myctm2.1Atp
Tg(Tek-cre)1Rwng/0
involves: 129P2/OlaHsd * FVB/N MGI:3811916


Genotype
MGI:3811817
ht1
Allelic
Composition
Myctm2.1Atp/Myc+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myctm2.1Atp mutation (0 available); any Myc mutation (43 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• the percent of T cells that proliferate in response to TCR stimulation is 63% compared to 69% in wild-type cells with fewer cells re-entering the cell cycle then in wild-type samples

growth/size/body
• mice exhibit decreased weight compared to wild-type mice that is not as severe as in Myctm1Atp heterozygotes

hematopoietic system
• the percent of T cells that proliferate in response to TCR stimulation is 63% compared to 69% in wild-type cells with fewer cells re-entering the cell cycle then in wild-type samples

cellular
• the percent of T cells that proliferate in response to TCR stimulation is 63% compared to 69% in wild-type cells with fewer cells re-entering the cell cycle then in wild-type samples




Genotype
MGI:3811819
ht2
Allelic
Composition
Myctm1Atp/Myctm2.1Atp
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myctm1Atp mutation (0 available); any Myc mutation (43 available)
Myctm2.1Atp mutation (0 available); any Myc mutation (43 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• despite cellular defects in T cell proliferation, activated T cells blast normally
• the percent of T cells that proliferate in response to TCR stimulation is 15% compared to 69% in wild-type cells with fewer cells re-entering the cell cycle then in wild-type samples

growth/size/body
• mice exhibit decreased weight compared to wild-type mice that is not as severe as in Myctm1Atp heterozygotes

hematopoietic system
• the percent of T cells that proliferate in response to TCR stimulation is 15% compared to 69% in wild-type cells with fewer cells re-entering the cell cycle then in wild-type samples

cellular
• the percent of T cells that proliferate in response to TCR stimulation is 15% compared to 69% in wild-type cells with fewer cells re-entering the cell cycle then in wild-type samples




Genotype
MGI:3811917
cn3
Allelic
Composition
Hnf4atm1(cre)Sdv/Hnf4a+
Myctm2.1Atp/Myctm2.1Atp
Genetic
Background
involves: 129P2/OlaHsd * 129S/SvEv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hnf4atm1(cre)Sdv mutation (2 available); any Hnf4a mutation (28 available)
Myctm2.1Atp mutation (0 available); any Myc mutation (43 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice are viable

liver/biliary system
N
• liver size and morphology are normal




Genotype
MGI:3811915
cn4
Allelic
Composition
Myctm2.1Atp/Myctm2.1Atp
Edil3Tg(Sox2-cre)1Amc/Edil3+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Edil3Tg(Sox2-cre)1Amc mutation (5 available); any Edil3 mutation (43 available)
Myctm2.1Atp mutation (0 available); any Myc mutation (43 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

liver/biliary system

hematopoietic system
• when embryonic or yolk sac cells are cultured, few abnormal colony-forming unit-granulocyte/macrophage colonies form unlike when wild-type cells are cultured
• despite normal numbers of hematopoietic stem cells, hematopoiesis is impaired
• erythroblast precursors are decreased 1500-fold compared to in wild-type mice due to a 19-fold increased in apoptosis at E9.5 and a 41-fold increased at E10.5
• when embryonic or yolk sac cells are cultured, few abnormal blast-forming unit-erythroid colonies form unlike when wild-type cells are cultured
• the number of early basophilic erythroblasts is decreased 11.5-fold compared to in wild-type mice

embryo

growth/size/body

cardiovascular system
N
• embryonic vasculature development is normal




Genotype
MGI:3811825
cn5
Allelic
Composition
Myctm2.1Atp/Myctm2.1Atp
Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myctm2.1Atp mutation (0 available); any Myc mutation (43 available)
Tg(Mx1-cre)1Cgn mutation (7 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• following treatment with a retroviral cre, mouse embryonic fibroblasts fail to proliferate in culture unlike wild-type cells

immune system
N
• despite cellular defects in T cell proliferation, activated T cells blast normally




Genotype
MGI:3811820
cn6
Allelic
Composition
Myctm1Atp/Myctm2.1Atp
Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA * FVB/N * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myctm1Atp mutation (0 available); any Myc mutation (43 available)
Myctm2.1Atp mutation (0 available); any Myc mutation (43 available)
Tg(Mx1-cre)1Cgn mutation (7 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• despite cellular defects in T cell proliferation, activated T cells exposed to pIpC blast normally




Genotype
MGI:4412367
cn7
Allelic
Composition
Myctm2.1Atp/Myctm2.1Atp
Tg(Pdx1-cre)1Herr/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J * CBA/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myctm2.1Atp mutation (0 available); any Myc mutation (43 available)
Tg(Pdx1-cre)1Herr mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
N
• at birth and 2 months, pancreatic contents of insulin and glucagon are similar to that of controls; islet architecture and function are normal
• in newborns, diminished surface occupied by exocrine pancreas is composed of poorly polarized acinar cells
• at 2 months, histology is grossly normal, but adipocytes accumulate in the parenchyma
• in 10 month old animals, adipose tissue is abundant; however pancreas weight is still reduced by 31%
• adipose replacement of acinar cells is gradual with 2 intermediate cells observed: acinar cells containing small lipid droplets and fat-laden cells containing zymogen but lacking other acinar markers; this suggests that acinar cells transdifferentiate into adipocytes in mature mutants
• loss of exocrine tissue affects 50% of the acinar mass
• acinar cells from newborns and adults have less amylase+ve and Cpa+ve zymogen granules than controls and are poorly polarized; in some pancreata, cellular localization of zymogen granules in adult cells is altered due to accumulation of lipid droplets
• some amylase containing zymogen granules are located within the thin cytoplasmic rim of adipocytes
• at 10 months, remaining acinar cells show similar dysmorphic traits to those in younger animals (see note above)
• adipose replacement of acinar cells is gradual with 2 intermediate cells observed: acinar cells containing small lipid droplets and fat-laden cells containing zymogen but lacking other acinar markers; this suggests that acinar cells transdifferentiate into adipocytes in mature mutants
• in 10 month-old animals, acinar cells are totally absent in entire pancreatic lobes
• arborization of exocrine tree in newborns is reduced to 51% of controls and to 17% in adults
• loss of exocrine tissue affects 70% of the ductal mass
• growth of main pancreatic axes is unaffected but secondary branches are less developed at E15.5 and in newborns
• at E12.5, pancreata contain less proliferating pHH3+/Pdx1+/amylase -ve progenitor cells than controls
• at 2 months, pancreas weight is reduced to 55% of control weight
• pancreas is hypoplastic from E12.5 onward

homeostasis/metabolism
• at birth amylase activity in pancreatic extracts is 7% of controls, but recovers to 57% by 2 months of age; amylase acitivity per gram/pancreas is reduced 4-fold in newborns and partially recovered at 2 months

digestive/alimentary system
• loss of exocrine tissue affects 50% of the acinar mass
• acinar cells from newborns and adults have less amylase+ve and Cpa+ve zymogen granules than controls and are poorly polarized; in some pancreata, cellular localization of zymogen granules in adult cells is altered due to accumulation of lipid droplets
• some amylase containing zymogen granules are located within the thin cytoplasmic rim of adipocytes
• at 10 months, remaining acinar cells show similar dysmorphic traits to those in younger animals (see note above)
• adipose replacement of acinar cells is gradual with 2 intermediate cells observed: acinar cells containing small lipid droplets and fat-laden cells containing zymogen but lacking other acinar markers; this suggests that acinar cells transdifferentiate into adipocytes in mature mutants
• in 10 month-old animals, acinar cells are totally absent in entire pancreatic lobes
• arborization of exocrine tree in newborns is reduced to 51% of controls and to 17% in adults
• loss of exocrine tissue affects 70% of the ductal mass




Genotype
MGI:3811916
cn8
Allelic
Composition
Myctm2.1Atp/Myctm2.1Atp
Tg(Tek-cre)1Rwng/0
Genetic
Background
involves: 129P2/OlaHsd * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myctm2.1Atp mutation (0 available); any Myc mutation (43 available)
Tg(Tek-cre)1Rwng mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

liver/biliary system
• liver cells exhibit a mesenchymal rather than epithelial organization
• the decrease in liver size is greater than can be numerically accounted for by hypoplasia

hematopoietic system
• mice exhibit a hematopoietic phenotype identical to that observed in Myctm2.1Atp/Myctm2.1Atp Tg(Sox2-cre)1Amc mice

embryo

cardiovascular system
N
• embryonic vasculature development is normal





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last database update
10/09/2024
MGI 6.24
The Jackson Laboratory