PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10676632-6 2000 Together, these data show that the hTERT CpG island can undergo cytosine methylation in cultured cells and tumors and that DNA methylation may contribute to the regulation of the hTERT gene, but that CpG island methylation is not responsible for repressing hTERT expression in most telomerase-negative cells. Cytosine 64-72 telomerase reverse transcriptase Homo sapiens 35-40