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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ungtm1Tld
targeted mutation 1, Tomas Lindahl
MGI:2182610
Summary 8 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Ungtm1Tld/Ungtm1Tld involves: 129 * C57BL/6J MGI:3038833
hm2
Ungtm1Tld/Ungtm1Tld involves: 129P2/OlaHsd MGI:4429643
hm3
Ungtm1Tld/Ungtm1Tld Not Specified MGI:3038834
cx4
Pcnatm1Jcbs/Pcnatm1Jcbs
Ungtm1Tld/Ungtm1Tld
involves: 129P2/OlaHsd MGI:4429642
cx5
Smug1tm1a(EUCOMM)Hmgu/Smug1tm1a(EUCOMM)Hmgu
Ungtm1Tld/Ungtm1Tld
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6N MGI:5505261
cx6
Msh2tm1Htr/Msh2tm1Htr
Smug1tm1a(EUCOMM)Hmgu/Smug1tm1a(EUCOMM)Hmgu
Ungtm1Tld/Ungtm1Tld
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6N MGI:5505262
cx7
Smug1tm1a(EUCOMM)Hmgu/Smug1tm1a(EUCOMM)Hmgu
Ungtm1Tld/Ungtm1Tld
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6N MGI:5507885
cx8
Msh2tm1Htr/Msh2tm1Htr
Smug1tm1a(EUCOMM)Hmgu/Smug1tm1a(EUCOMM)Hmgu
Ungtm1Tld/Ungtm1Tld
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6N MGI:5507886


Genotype
MGI:3038833
hm1
Allelic
Composition
Ungtm1Tld/Ungtm1Tld
Genetic
Background
involves: 129 * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ungtm1Tld mutation (0 available); any Ung mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• no overt phenotype up to one year; fertile and developed normally
• tumor free until 12 - 18 months
• detailed histopathology of male and female mice at 1 year showed no gross abnormalities




Genotype
MGI:4429643
hm2
Allelic
Composition
Ungtm1Tld/Ungtm1Tld
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ungtm1Tld mutation (0 available); any Ung mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• mouse embryonic fibroblasts exhibit increased susceptibility to 5-hydroxymethyluridine and 5-fluorouracil toxicity compared with wild-type cells
• liver cells exhibit reduced 5-fluorouracil excision activity compared with wild-type cells

hematopoietic system
• reduced IgG1 class switch recombination
• mice exhibit a marginal increase in germinal center B cell mutation frequency compared with wild-type mice

homeostasis/metabolism
• liver cells exhibit reduced 5-fluorouracil excision activity compared with wild-type cells

immune system
• reduced IgG1 class switch recombination
• mice exhibit a marginal increase in germinal center B cell mutation frequency compared with wild-type mice




Genotype
MGI:3038834
hm3
Allelic
Composition
Ungtm1Tld/Ungtm1Tld
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ungtm1Tld mutation (0 available); any Ung mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• increased mortality after 18 months of age, with decreased median life span compared to controls

neoplasm
• palpable in spleen and mesenteric lymph nodes of 12% of the mice after 18 months of age

hematopoietic system
• apparent after 18 months of age
• apparent after 18 months of age
• apparent after 18 months of age
• altered isotype balance; class switching after LPS stimulation was diminished, but not as a result of lack of B cell proliferation
• only IgG3 decreased
• altered isotype balance
• class switching after LPS stimulation was diminished, but not as a result of lack of B cell prolferation

immune system
• apparent after 18 months of age
• apparent after 18 months of age
• apparent after 18 months of age
• altered isotype balance; class switching after LPS stimulation was diminished, but not as a result of lack of B cell proliferation
• only IgG3 decreased
• altered isotype balance
• class switching after LPS stimulation was diminished, but not as a result of lack of B cell prolferation
• apparent after 18 months of age
• apparent after 18 months of age

endocrine/exocrine glands
• apparent after 18 months of age

growth/size/body
• apparent after 18 months of age
• apparent after 18 months of age




Genotype
MGI:4429642
cx4
Allelic
Composition
Pcnatm1Jcbs/Pcnatm1Jcbs
Ungtm1Tld/Ungtm1Tld
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pcnatm1Jcbs mutation (0 available); any Pcna mutation (16 available)
Ungtm1Tld mutation (0 available); any Ung mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• mice exhibit a reduction in total mutation frequency in germinal center B cell compared with wild-type mice that is similar to that observed in Pcnatm1Jcbs homozygotes

immune system
• mice exhibit a reduction in total mutation frequency in germinal center B cell compared with wild-type mice that is similar to that observed in Pcnatm1Jcbs homozygotes




Genotype
MGI:5505261
cx5
Allelic
Composition
Smug1tm1a(EUCOMM)Hmgu/Smug1tm1a(EUCOMM)Hmgu
Ungtm1Tld/Ungtm1Tld
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6N
Cell Lines HEPD0529_1_C05
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Smug1tm1a(EUCOMM)Hmgu mutation (0 available); any Smug1 mutation (14 available)
Ungtm1Tld mutation (0 available); any Ung mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice exhibit normal life expectancy

cellular
• liver cells exhibit non-additive reduced 5-fluorouracil excision activity compared with wild-type cells
• mice lack uracil excision activity from a double-stranded oligodeoxyribonucleotide substrate containing a U:G mismatch

homeostasis/metabolism
• liver cells exhibit non-additive reduced 5-fluorouracil excision activity compared with wild-type cells
• mice lack uracil excision activity from a double-stranded oligodeoxyribonucleotide substrate containing a U:G mismatch




Genotype
MGI:5505262
cx6
Allelic
Composition
Msh2tm1Htr/Msh2tm1Htr
Smug1tm1a(EUCOMM)Hmgu/Smug1tm1a(EUCOMM)Hmgu
Ungtm1Tld/Ungtm1Tld
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6N
Cell Lines HEPD0529_1_C05
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Msh2tm1Htr mutation (1 available); any Msh2 mutation (95 available)
Smug1tm1a(EUCOMM)Hmgu mutation (0 available); any Smug1 mutation (14 available)
Ungtm1Tld mutation (0 available); any Ung mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mean life expectancy is 107 days compared with 223 days for Msh2tm1Htr homozygotes
• fewer than expected mice are identified at weaning

neoplasm
• in all mice that die
• in 4 of 5 mice with tumors




Genotype
MGI:5507885
cx7
Allelic
Composition
Smug1tm1a(EUCOMM)Hmgu/Smug1tm1a(EUCOMM)Hmgu
Ungtm1Tld/Ungtm1Tld
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6N
Cell Lines HEPD0529_1_B07
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Smug1tm1a(EUCOMM)Hmgu mutation (0 available); any Smug1 mutation (14 available)
Ungtm1Tld mutation (0 available); any Ung mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice exhibit normal life expectancy

cellular
• liver cells exhibit non-additive reduced 5-fluorouracil excision activity compared with wild-type cells
• mice lack uracil excision activity from a double-stranded oligodeoxyribonucleotide substrate containing a U:G mismatch

homeostasis/metabolism
• liver cells exhibit non-additive reduced 5-fluorouracil excision activity compared with wild-type cells
• mice lack uracil excision activity from a double-stranded oligodeoxyribonucleotide substrate containing a U:G mismatch




Genotype
MGI:5507886
cx8
Allelic
Composition
Msh2tm1Htr/Msh2tm1Htr
Smug1tm1a(EUCOMM)Hmgu/Smug1tm1a(EUCOMM)Hmgu
Ungtm1Tld/Ungtm1Tld
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6N
Cell Lines HEPD0529_1_B07
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Msh2tm1Htr mutation (1 available); any Msh2 mutation (95 available)
Smug1tm1a(EUCOMM)Hmgu mutation (0 available); any Smug1 mutation (14 available)
Ungtm1Tld mutation (0 available); any Ung mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mean life expectancy is 107 days compared with 223 days for Msh2tm1Htr homozygotes
• fewer than expected mice are identified at weaning

neoplasm
• in all mice that die
• in 4 of 5 mice with tumors





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