PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22341442-3 2012 Mutation of SPT4 selectively decreased synthesis of and restored enzymatic activity to expanded polyQ protein without affecting protein lacking long-polyQ stretches. polyglutamine 96-101 transcription elongation factor SPT4 Saccharomyces cerevisiae S288C 12-16