mortality/aging
N |
• mice appear healthy and viable up to 18 months of age
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cellular
• in absence of exogenous exposure to methylating agents, mice accumulate significant levels of 1-methyladenine in their genomes compared to wild-type or Alkbh3-deficient mice, detectable at 4 months and increasing by 8 months, due to inefficient DNA repair
• repair kinetics of 1-methyladenine lesions in DNA exposed to a methylating agent are much lower than in wild-type with only a small fraction of 1-methyladenine being repaired after 36 hours
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homeostasis/metabolism
• in absence of exogenous exposure to methylating agents, mice accumulate significant levels of 1-methyladenine in their genomes compared to wild-type or Alkbh3-deficient mice, detectable at 4 months and increasing by 8 months, due to inefficient DNA repair
• repair kinetics of 1-methyladenine lesions in DNA exposed to a methylating agent are much lower than in wild-type with only a small fraction of 1-methyladenine being repaired after 36 hours
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