The invention provides compositions and methods related to human telomerase reverse transcriptase (hTRT), the catalytic protein subunit of human telomerase. The polynucleotides and polypeptides of the invention are useful for diagnosis, prognosis and treatment of human diseases, for changing the proliferative...http://www.google.com/patents/US6617110?utm_source=gb-gplus-sharePatent US6617110 - Cells immortalized with telomerase reverse transcriptase for use in drug screening