PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24662821-3 2015 The polypurine/polypyrimidine tract in the proximal promoter region of the human RET gene (-51 to -33 relative to transcription start site) is essential for basal transcriptional activity of this gene. polypurine 4-14 ret proto-oncogene Homo sapiens 81-84