PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18166084-2 2007 SCA1 and SCA2 are two ataxias caused by expansion of polyglutamine tracts in Ataxin-1 (ATXN1) and Ataxin-2 (ATXN2), respectively, two proteins that are otherwise unrelated. polyglutamine 53-66 Ataxin-2 Drosophila melanogaster 9-13 18166084-2 2007 SCA1 and SCA2 are two ataxias caused by expansion of polyglutamine tracts in Ataxin-1 (ATXN1) and Ataxin-2 (ATXN2), respectively, two proteins that are otherwise unrelated. polyglutamine 53-66 Ataxin-2 Drosophila melanogaster 98-106