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Phenotypes Associated with This Genotype
Genotype
MGI:4459471
Allelic
Composition
Dot1ltm1.1Tche/Dot1ltm1.1Tche
Genetic
Background
either: (involves: C57BL/6) or (involves: 129/Sv * C57BL/6)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dot1ltm1.1Tche mutation (0 available); any Dot1l mutation (72 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

cellular
• in embryonic stem cells without any other chromosome abnormalities
• embryonic stem cells exhibit telomere elongation with activation of the alternative lengthening of telomere mechanism compared with wild-type cells
• embryonic stem cells exhibit reduced H3K79 di- and tri-methylation compared with wild-type cells
• of embryonic stem cells and in focal areas of the embryos
• of embryonic stem cells

embryo
• yolk vasculature is underdeveloped and disorganized compared to in wild-type mice
• however, yolk sac vasculature is present and contains primitive erythrocytes
• of embryonic stem cells and in focal areas of the embryos
• at E8.5, 15% of mice exhibit developmental arrest unlike wild-type mice
• remaining mice exhibit developmental arrest at E9.5

growth/size/body
• at E9.5
• at E8.5, 15% of mice exhibit developmental arrest unlike wild-type mice
• remaining mice exhibit developmental arrest at E9.5

limbs/digits/tail
• stunted at E9.5

cardiovascular system
• yolk vasculature is underdeveloped and disorganized compared to in wild-type mice
• however, yolk sac vasculature is present and contains primitive erythrocytes
• at E9.5


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
03/18/2025
MGI 6.24
The Jackson Laboratory