PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 14662308-7 2003 The length of a poly-glutamine string in the CLOCK C-terminus varied between and within 25 species (6 orders) examined, however, no discernible feature distinguishing day and night active species was found. polyglutamine 16-30 circadian locomoter output cycles protein kaput Tyto alba 45-50