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 17672459-1 2007 A polypurine (guanine)/polypyrimidine (cytosine)-rich sequence within the proximal promoter region of the human RET oncogene has been shown to be essential for RET basal transcription. polypurine 2-12 ret proto-oncogene Homo sapiens 112-115 17672459-1 2007 A polypurine (guanine)/polypyrimidine (cytosine)-rich sequence within the proximal promoter region of the human RET oncogene has been shown to be essential for RET basal transcription. polypurine 2-12 ret proto-oncogene Homo sapiens 160-163