Telomerase is a specialized nucleoprotein enzyme complex that maintains the telomere length. The telomerase
reverse transcriptase (TERT) is the catalytically active component of the telomerase complex. In humans, the protein
component (hTERT) and RNA component (hTR) are found to differentially express in cancer cells. In contrast
to differentiated cells, most of the cancer cells overexpress hTERT, which is needed to maintain the proliferative
potential of cells.