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Nature Chemical Biology 5, 540–541 (1 August 2009) | doi:10.1038/nchembio0809-540

Research highlights

The Rhes is Htt-ory Expansion of a polyglutamine repeat in the huntingtin (Htt) protein generates a mutant form (mHtt) that causes Huntington's disease (HD), a neurodegenerative disease that mainly affects the corpus striatum. mHtt can be modified by sumoylation, which increases the soluble, more toxic form of mHtt at the expense of the aggregated, cyto-protective form.