Mutant alleles of HD improve the life span of p53(-/-) mice.
Loss of function mutations in the p53 tumor suppressor gene predispose mice and humans to cancer, resulting in abbreviated life spans. A dominant mutation in the murine HD gene, similar to mutations that cause Huntington's disease in humans, reverses some of the effects of p53 mutations on longevity. We attribute this to the enhanced apoptotic effect of the expanded polyglutamine region in the HD protein on proliferating cells lacking p53.
Ryan
Amy
A
Department of Neuroscience, University of Virginia, Charlottesville, VA 22908-1392, United States.
Scrable
Heidi
H
D000375:Aging / Q000235:genetics*; D000483:Alleles; D000818:Animals; D017209:Apoptosis; D005838:Genotype; D000071058:Huntingtin Protein; D008136:Longevity / Q000235:genetics*; D051379:Mice; D018345:Mice, Knockout; D009154:Mutation / Q000235:genetics*; D009419:Nerve Tissue Proteins / Q000235:genetics* / Q000378:metabolism*; D009687:Nuclear Proteins / Q000235:genetics* / Q000378:metabolism*; D016159:Tumor Suppressor Protein p53 / Q000172:deficiency* / Q000235:genetics
C506812:Htt protein, mouse; D000071058:Huntingtin Protein; D009419:Nerve Tissue Proteins; D009687:Nuclear Proteins; D016159:Tumor Suppressor Protein p53