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貨期:
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用途:
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Telomerase is a ribonucleoprotein enzyme essential for the replication of chromosome termini in most eukaryotes. Active in progenitor and cancer cells. Inactive, or very low activity, in normal somatic cells. Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme. Catalyzes the RNA-dependent extension of 3'-chromosomal termini with the 6-nucleotide telomeric repeat unit, 5'-TTAGGG-3'. The catalytic cycle involves primer binding, primer extension and release of product once the template boundary has been reached or nascent product translocation followed by further extension. More active on substrates containing 2 or 3 telomeric repeats. Telomerase activity is regulated by a number of factors including telomerase complex-associated proteins, chaperones and polypeptide modifiers. Modulates Wnt signaling. Plays important roles in aging and antiapoptosis.
基因功能參考文獻(xiàn):
This study evaluated the relationship between polymorphisms of Telomerase Reverse Transcriptase and the longevity and cancer susceptibility of 4 dog breeds. PMID: 24423165
This study reports that the human telomerase promoter operates in canine cells, suggesting that human telomerase promoter-driven cancer therapy can be used to treat cancer in canines. PMID: 21062413
Dog TERT shows the highest level of sequence similarity to the human TERT protein, supporting the dog as a model system for telomerase-based studies. PMID: 15225880
Localization of catalytic subunit of telomerase reverse transcriptase in normal lens epithelial cells(LEC)corresponded with LEC's regional functions. (Catalytic subunit of telomerase reverse transcriptase) PMID: 17093391
A higher expression of TERT was noted in canine and feline meningionas. PMID: 17519562
These findings suggest that telomerase may be a valuable target for canine osteosarcoma (OSA) therapy, and that telomerase status does not appear to be a prognostic factor in canine OSA. PMID: 18761602
DNA sequencing revealed two insertions (175 and 28 bp long) and two deletions (17 and 32 bp long), which were encountered in different combinations and gave rise to five different transcripts. PMID: 18836773
TERT interacted with ERalpha via the estrogen response element (ERE) in cataractous lens epithelial cells (LEC) but not in normal LEC. PMID: 19936027