Results 11 to 20 of about 113,797 (252)

P. berghei telomerase subunit TERT is essential for parasite survival [PDF]

open access: yes, 2014
Telomeres define the ends of chromosomes protecting eukaryotic cells from chromosome instability and eventual cell death. The complex regulation of telomeres involves various proteins including telomerase, which is a specialized ribonucleoprotein ...
Janse, Chris J.   +4 more
core   +10 more sources

Telomerase RNA function in recombinant Tetrahymena telomerase [PDF]

open access: yesGenes & Development, 1999
Telomerase is a ribonucleoprotein reverse transcriptase specialized for use of a sequence within its integral RNA component as the template for DNA synthesis. Telomerase adds telomeric simple sequence repeats to single-stranded primers in vitro or chromosome ends in vivo.
J D, Licht, K, Collins
openaire   +2 more sources

The mTOR pathway is necessary for survival of mice with short telomeres

open access: yesNature Communications, 2020
Telomerase deficiency leads to age-related diseases and shortened lifespan, while inhibition of the mTOR pathway delays aging. Here, the authors show that inhibition of mTORC1 signaling shortens the lifespan of telomerase deficient mice.
Iole Ferrara-Romeo   +10 more
doaj   +1 more source

Tel1ATM dictates the replication timing of short yeast telomeres [PDF]

open access: yes, 2014
Telomerase action is temporally linked to DNA replication. Although yeast telomeres are normally late replicating, telomere shortening leads to early firing of subtelomeric DNA replication origins.
Alessandro Bianchi   +4 more
core   +7 more sources

TERRA regulate the transcriptional landscape of pluripotent cells through TRF1-dependent recruitment of PRC2

open access: yeseLife, 2019
The mechanisms that regulate pluripotency are still largely unknown. Here, we show that Telomere Repeat Binding Factor 1 (TRF1), a component of the shelterin complex, regulates the genome-wide binding of polycomb and polycomb H3K27me3 repressive marks to
Rosa María Marión   +7 more
doaj   +1 more source

The telomerase essential N-terminal domain promotes DNA synthesis by stabilizing short RNA-DNA hybrids. [PDF]

open access: yes, 2015
Telomerase is an enzyme that adds repetitive DNA sequences to the ends of chromosomes and consists of two main subunits: the telomerase reverse transcriptase (TERT) protein and an associated telomerase RNA (TER). The telomerase essential N-terminal (TEN)
Akiyama, Benjamin M   +2 more
core   +2 more sources

Telomerase structure

open access: yesCurrent Opinion in Structural Biology, 2014
The telomerase reverse transcriptase has an essential role in telomere maintenance and in cancer biology. Progress during the last year has revealed the three-dimensional architecture of both human and ciliate telomerase at about 25Å resolution, obtained using single particle electron microscopy (EM).
Sandin, Sara, Rhodes, Daniela
openaire   +2 more sources

Tianshengyuan-1 (TSY-1) regulates cellular Telomerase activity by methylation of TERT promoter. [PDF]

open access: yes, 2016
Telomere and Telomerase have recently been explored as anti-aging and anti-cancer drug targets with only limited success. Previously we showed that the Chinese herbal medicine Tianshengyuan-1 (TSY-1), an agent used to treat bone marrow deficiency, has a ...
Chow, Michelle   +9 more
core   +2 more sources

Cancer-associated TERT promoter mutations abrogate telomerase silencing. [PDF]

open access: yes, 2015
Mutations in the human telomerase reverse transcriptase (TERT) promoter are the most frequent non-coding mutations in cancer, but their molecular mechanism in tumorigenesis has not been established.
Boyle, John   +5 more
core   +1 more source

Multiomics identifies the link between intratumor steatosis and the exhausted tumor immune microenvironment in hepatocellular carcinoma

open access: yesHepatology, EarlyView., 2022
Steatotic HCC can be diagnosed by MRI and forms a pro‐tumor immune microenvironment with high expression of PD‐L1, M2 polarization of macrophages and activation of CAFs, which may be a good target for combined immunotherapy. Abstract Background and Aims Immunotherapy has become the standard‐of‐care treatment for hepatocellular carcinoma (HCC), but its ...
Hiroki Murai   +29 more
wiley   +1 more source

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