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Short telomeres induce a DNA damage response in Saccharomyces cerevisiae
(American Society for Cell Biology, 2003-03)
Telomerase-deficient Saccharomyces cerevisiae cells show a progressive decrease in telomere length. When grown for several days in log phase, the tlc1Delta cells initially display wild-type growth kinetics with subsequent ...
G-strand overhangs on telomeres in telomerase-deficient mouse cells
(Oxford University Press, 1999-10-15)
Telomeres of eukaryotic chromosomes contain 3' overhangs which are thought to be essential for the maintenance of proper chromosome end structure and function. We examined the requirement for telomerase activity for the ...
Secondary structure of vertebrate telomerase RNA
(Cell Press, 2000-03-03)
Telomerase is a ribonucleoprotein enzyme that maintains telomere length by adding telomeric sequence repeats onto chromosome ends. The essential RNA component of telomerase provides the template for telomeric repeat ...
Short Telomeres Limit Tumor Progression In Vivo by Inducing Senescence
(Cell Press, 2007-05)
Telomere maintenance is critical for cancer progression. To examine mechanisms of tumor suppression induced by short telomeres, we crossed mice deficient for the RNA component of telomerase, mTR(-/-), with Emu-myc transgenic ...
Telomerase mutations in families with idiopathic pulmonary fibrosis
(Massachusetts Medical Society, 2007-03-29)
BACKGROUND: Idiopathic pulmonary fibrosis is progressive and often fatal; causes of familial clustering of the disease are unknown. Germ-line mutations in the genes hTERT and hTR, encoding telomerase reverse transcriptase ...
p53 Deficiency Rescues the Adverse Effects of Telomere Loss and Cooperates with Telomere Dysfunction to Accelerate Carcinogenesis
(Cell Press, 1999-05-14)
Maintenance of telomere length and function is critical for the efficient proliferation of eukaryotic cells. Here, we examine the interactions between telomere dysfunction and p53 in cells and organs of telomerase-deficient ...
Functional characterization and developmental regulation of mouse telomerase RNA
(American Association for the Advancement of Science, 1995-09-01)
Telomerase synthesizes telomeric DNA repeats onto chromosome ends de novo. The mouse telomerase RNA component was cloned and contained only 65 percent sequence identity with the human telomerase RNA. Alteration of the ...
The RNA component of human telomerase
(American Association for the Advancement of Science, 1995-09-01)
Eukaryotic chromosomes are capped with repetitive telomere sequences that protect the ends from damage and rearrangements. Telomere repeats are synthesized by telomerase, a ribonucleic acid (RNA)-protein complex. Here, the ...
Short dysfunctional telomeres impair tumorigenesis in the INK4a(delta2/3) cancer-prone mouse.
(Cell Press, 1999-05-14)
Maintenance of telomere length is predicted to be essential for bypass of senescence and crisis checkpoints in cancer cells. The impact of telomere dysfunction on tumorigenesis was assessed in successive generations of ...
Chromosome first aid
(Cell Press, 1991-11-15)