The telomerase-associated protein p43 is involved in anchoring telomerase in the nucleus

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The telomerase-associated protein p43 is involved in anchoring telomerase in the nucleus.

Telomere replication of eukaryotic chromosomes is achieved by a specialized enzyme, the telomerase. Although the biochemistry of end-replication is well understood, little is known about the organization of the end-replication machinery, its regulation throughout the cell cycle or the biological function of the telomerase-associated proteins. Here we investigate the function of the telomerase-a...

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Telomerase-associated protein TEP1 is not essential for telomerase activity or telomere length maintenance in vivo.

TEP1 is a mammalian telomerase-associated protein with similarity to the Tetrahymena telomerase protein p80. Like p80, TEP1 is associated with telomerase activity and the telomerase reverse transcriptase, and it specifically interacts with the telomerase RNA. To determine the role of mTep1 in telomerase function in vivo, we generated mouse embryonic stem (ES) cells and mice lacking mTep1. The m...

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Hippocampal telomerase is involved in the modulation of depressive behaviors.

Telomere and telomerase alterations have been reported in mood disorders. However, the role of telomerase in depression remains unclear. Here we show that chronic mild stress (CMS) led to a significant decrease in telomerase reverse transcriptase (TERT) level and telomerase activity in the hippocampus. Treatment with antidepressant fluoxetine reversed the CMS-induced TERT and telomerase activit...

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Tumorogensis : The Dual Role of Telomerase

  Carcinogenesis is a multistep process characterized by the gradual accumulation of genetic changes that ultimately lead to cancer. These genetic mutations can impart limitless replicative potential to the cancer cells making them immortal. Telomeres are repeat nucleotide sequence TTAGGG that are present at the end of chromosomes. Its functions are to protect the chromosomal ends and to ensur...

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ژورنال

عنوان ژورنال: Journal of Cell Science

سال: 2003

ISSN: 1477-9137,0021-9533

DOI: 10.1242/jcs.00351