PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16817855-1 2006 We recently reported that the transient expression of polyglutamine tracts of various size in exon 1 of the huntingtin polypeptide (httEx1) generated abnormally high levels of intracellular reactive oxygen species that directly contributed to cell death. Reactive Oxygen Species 190-213 huntingtin Homo sapiens 108-118