Telomerase, also called terminal transferase, [1] is a ribonucleoprotein that adds a species-dependent telomere repeat sequence to the 3' end of telomeres. A telomere is a region of repetitive sequences …

Nov 21, 2025 · Telomerase is an enzyme that influences cell life span by adding organic compounds known as nucleotides to telomeres, segments of DNA located at the ends of chromosomes.

Dec 11, 2022 · Telomerase is a ribonucleoprotein structure comprising a functional RNA component and a catalytic reverse transcriptase component. The RNA component houses a template for the …

Mar 30, 2025 · In eukaryotes, telomerase, a telomeric enzyme includes a catalytic protein subunit known as telomerase reverse transcriptase (hTERT) and a core RNA component (hTR) that synthesizes …

Each time a cell divides, the telomeres lose a small amount of DNA and become shorter. Over time, the chromosomes become damaged and the cells die. Telomerase helps keep this from happening. …

Jul 29, 2025 · Telomerase is the enzyme that counteracts this shortening by adding new telomeric DNA sequences, thereby maintaining or extending telomere length. Telomerase is classified as a …

Telomerase is a reverse transcriptase that adds repeats of a DNA sequence (TTAGGG) to the ends of chromosomes (telomeres) in mitotic cells, thus maintaining their length and preventing cell cycle …

In this review, we focus on the structure, composition and function of telomerases. In addition, we discuss the origin and phylogenetic divergence of this unique RNA-dependent DNA polymerase as a …

Apr 2, 2020 · Telomerase is a ribonucleoprotein complex, the catalytic core of which includes the telomerase reverse transcriptase (TERT) and the non-coding human telomerase RNA (hTR), which …

Telomerase is an enzyme that adds repetitive nucleotide sequences to the 3' end of the lagging strand during DNA replication. It contains an RNA template, which it uses to extend the telomeres.