Huntington’s disease (HD) is a progressive, adult-onset neurodegenerative disease caused by a polyglutamine (polyQ) expansion in the N-terminal region of the protein huntingtin (HTT). There are no cures or disease-modifying therapies for HD. HTT has a highly conserved Akt phosphorylation site at serine 421, and prior work in HD models found that phosphorylation at S421 (S421-P) diminishes the toxicity of mutant HTT (mHTT) fragments in neuronal cultures. However, whether S421-P affects the toxicity of mHTT in vivo remains unknown. In this work, we used murine models to investigate the role of S421-P in HTT-induced neurodegeneration. Specifically, we mutated the human m
Ian H. Kratter, Hengameh Zahed, Alice Lau, Andrey S. Tsvetkov, Aaron C. Daub, Kurt F. Weiberth, Xiaofeng Gu, Frédéric Saudou, Sandrine Humbert, X. William Yang, Alex Osmand, Joan S. Steffan, Eliezer Masliah, Steven Finkbeiner
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