PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21278081-2 2011 HD is caused by the extension of trinucleotide repeats encoding a stretch of glutamine residues at the amino-terminal end of the large huntingtin (HTT) protein. trinucleotide 33-46 huntingtin Homo sapiens 135-145 21278081-2 2011 HD is caused by the extension of trinucleotide repeats encoding a stretch of glutamine residues at the amino-terminal end of the large huntingtin (HTT) protein. trinucleotide 33-46 huntingtin Homo sapiens 147-150