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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Dnmt1+
wild type
MGI:1857561
Summary 9 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Dnmt1em2Jiemw/Dnmt1+ C57BL/6-Dnmt1em2Jiemw MGI:7506876
ht2
Dnmt1MommeD2/Dnmt1+ FVB/NJ-Dnmt1MommeD2 MGI:3607156
cn3
Bcl11atm1Pwt/Bcl11atm1Pwt
Dnmt1tm2Jae/Dnmt1+
Tg(Mx1-cre)1Cgn/0
involves: 129S4/SvJae * C57BL/6 * CBA MGI:5515307
cx4
Dnmt1tm1Pwl/Dnmt1+
Mlh1tm1Lisk/Mlh1tm1Lisk
involves: 129S4/SvJae * 129S7/SvEvBrd * C57BL/6 MGI:3848458
cx5
Dnmt1tm1Jae/Dnmt1+
Mlh1tm1Lisk/Mlh1tm1Lisk
involves: 129S4/SvJae * 129S7/SvEvBrd * C57BL/6 MGI:3848459
cx6
Dnmt1tm1(tetO-BCL2)Sjk/Dnmt1+
Tg(IghMyc)22Bri/0
Tg(MMTVtTA)1Mam/0
involves: 129S4/SvJae * C57BL/6 MGI:3511863
cx7
ApcMin/Apc+
Dnmt1tm1Jae/Dnmt1+
involves: 129S4/SvJae * C57BL/6J MGI:3848451
cx8
ApcMin/Apc+
Dnmt1tm1Pwl/Dnmt1+
involves: 129S4/SvJae * C57BL/6J MGI:3848450
cx9
Avy/A
Dnmt1MommeD2/Dnmt1+
involves: C57BL/6J * FVB/NJ MGI:3607157


Genotype
MGI:7506876
ht1
Allelic
Composition
Dnmt1em2Jiemw/Dnmt1+
Genetic
Background
C57BL/6-Dnmt1em2Jiemw
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dnmt1em2Jiemw mutation (0 available); any Dnmt1 mutation (113 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• longer latency, fewer number of platform crossings and less time spent in target quadrant in Morris water maze test
• normal swimming speed in Morris water maze test
• higher error ratio in radial 8-arm maze test
• higher error ratio in radial 8-arm maze test
• no difference in time spent with novel object

cellular
• in hippocampus

nervous system
• in hippocampus
• reduced number of immature DCX+ neurons
• reduced proliferation of adult NSCs




Genotype
MGI:3607156
ht2
Allelic
Composition
Dnmt1MommeD2/Dnmt1+
Genetic
Background
FVB/NJ-Dnmt1MommeD2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dnmt1MommeD2 mutation (0 available); any Dnmt1 mutation (113 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• about half of heterozygous females from heterozygous intercrosses do not survive to birth




Genotype
MGI:5515307
cn3
Allelic
Composition
Bcl11atm1Pwt/Bcl11atm1Pwt
Dnmt1tm2Jae/Dnmt1+
Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bcl11atm1Pwt mutation (0 available); any Bcl11a mutation (42 available)
Dnmt1tm2Jae mutation (1 available); any Dnmt1 mutation (113 available)
Tg(Mx1-cre)1Cgn mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• mild




Genotype
MGI:3848458
cx4
Allelic
Composition
Dnmt1tm1Pwl/Dnmt1+
Mlh1tm1Lisk/Mlh1tm1Lisk
Genetic
Background
involves: 129S4/SvJae * 129S7/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dnmt1tm1Pwl mutation (0 available); any Dnmt1 mutation (113 available)
Mlh1tm1Lisk mutation (2 available); any Mlh1 mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice exhibit reduced survival compared with wild-type mice

neoplasm
• 61% of mice develop intestinal tumors
• 61% of mice develop intestinal tumors
• 29% of mice develop lymphomas
• mice develop lymphomas at an earlier age than in Mlh1tm1Lisk homozygotes

digestive/alimentary system
• 61% of mice develop intestinal tumors
• 61% of mice develop intestinal tumors




Genotype
MGI:3848459
cx5
Allelic
Composition
Dnmt1tm1Jae/Dnmt1+
Mlh1tm1Lisk/Mlh1tm1Lisk
Genetic
Background
involves: 129S4/SvJae * 129S7/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dnmt1tm1Jae mutation (2 available); any Dnmt1 mutation (113 available)
Mlh1tm1Lisk mutation (2 available); any Mlh1 mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice exhibit poorer survival than in Mlh1tm1Lisk homozygotes

neoplasm
• 41% of mice develop intestinal tumors
• 41% of mice develop intestinal tumors
• 56% of mice develop lymphomas
• mice develop lymphomas at an earlier age than in Mlh1tm1Lisk homozygotes

digestive/alimentary system
• 41% of mice develop intestinal tumors
• 41% of mice develop intestinal tumors




Genotype
MGI:3511863
cx6
Allelic
Composition
Dnmt1tm1(tetO-BCL2)Sjk/Dnmt1+
Tg(IghMyc)22Bri/0
Tg(MMTVtTA)1Mam/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dnmt1tm1(tetO-BCL2)Sjk mutation (0 available); any Dnmt1 mutation (113 available)
Tg(IghMyc)22Bri mutation (1 available)
Tg(MMTVtTA)1Mam mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• without doxycycline treatment median survival is 82 days, with doxycycline treatment the improves to 145 days

neoplasm
• in the absence of doxycycline, lymphoblastic leukemia is seen by 2 weeks of age
• in 5 - 7 week old triple transgenics with lymphoblastic leukemia doxycycline treatment resulted in normalization of the WBC count and restoration of normal hematopoiesis
• bulky B cell derived lymphomas, similar to those in Tg(IghMyc)22Bri single transgenics, are seen in older triple transgenics after treatment with doxycycline

behavior/neurological
• transgenics with leukemia are lethargic, doxycycline treatment returns activity levels to normal

hematopoietic system
• in the absence of doxycycline, mutants develop an enlarged spleen with doxycycline treatment the spleen returns to its normal size

immune system
• in the absence of doxycycline, mutants develop an enlarged spleen with doxycycline treatment the spleen returns to its normal size

growth/size/body
• in the absence of doxycycline, mutants develop an enlarged spleen with doxycycline treatment the spleen returns to its normal size




Genotype
MGI:3848451
cx7
Allelic
Composition
ApcMin/Apc+
Dnmt1tm1Jae/Dnmt1+
Genetic
Background
involves: 129S4/SvJae * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
ApcMin mutation (12 available); any Apc mutation (156 available)
Dnmt1tm1Jae mutation (2 available); any Dnmt1 mutation (113 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• mice exhibit fewer intestinal polyps compared with ApcMin heterozygotes
• polyps are smaller than in ApcMin heterozygotes




Genotype
MGI:3848450
cx8
Allelic
Composition
ApcMin/Apc+
Dnmt1tm1Pwl/Dnmt1+
Genetic
Background
involves: 129S4/SvJae * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
ApcMin mutation (12 available); any Apc mutation (156 available)
Dnmt1tm1Pwl mutation (0 available); any Dnmt1 mutation (113 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• mice exhibit fewer intestinal polyps compared with ApcMin heterozygotes
• polyps are smaller than in ApcMin heterozygotes




Genotype
MGI:3607157
cx9
Allelic
Composition
Avy/A
Dnmt1MommeD2/Dnmt1+
Genetic
Background
involves: C57BL/6J * FVB/NJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
A mutation (80 available); any a mutation (468 available)
Avy mutation (4 available); any a mutation (468 available)
Dnmt1MommeD2 mutation (0 available); any Dnmt1 mutation (113 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• more female pups with yellow coat color are produced when a MommeD1 dam is crossed with a psuedoagouti sire but not when the reciprocal cross is made

integument
• more female pups with yellow coat color are produced when a MommeD1 dam is crossed with a psuedoagouti sire but not when the reciprocal cross is made





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last database update
03/18/2025
MGI 6.24
The Jackson Laboratory