Results 131 to 140 of about 252,546 (355)

Mutation of the TERT promoter, switch to active chromatin, and monoallelic TERT expression in multiple cancers

open access: yesGenes & Development, 2015
Stern et al. found in multiple cancer cell lines that a TERT gene with a promoter mutation exhibits the H3K4me2/3 mark of active chromatin, while the wild-type allele retains the H3K27me3 mark of epigenetic silencing.
J. Stern   +4 more
semanticscholar   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry   +9 more
wiley   +1 more source

Passing the baton: The HIF switch

open access: yesTIBS -Trends in Biochemical Sciences. Regular ed, 2012
Hypoxia is an inadequate oxygen supply to tissues and cells, which can restrict their function. The hypoxic response is primarily mediated by the hypoxia-inducible transcription factors, HIF-1 and HIF-2, which have both overlapping and unique target ...
M. Koh, G. Powis
semanticscholar   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Identification and characterisation of behavioural genes of agrobacterium tumefaciens. [PDF]

open access: yes, 2000
Three behavioural mutants (fla-8, mot-6 and cheL) generated by transposon Tn5 mutagenesis and localised on cosmid pDUB1905 were studied. The cosmid pDUB1905, from a representative genomic library of the Agrobacterium tumefaciens C58C1 chromosome has ...
Marashi, Sayyed Hassan
core  

A portable epigenetic switch for bistable gene expression in bacteria

open access: yesScientific Reports, 2019
We describe a portable epigenetic switch based on opvAB, a Salmonella enterica operon that undergoes bistable expression under DNA methylation control.
David R. Olivenza   +5 more
doaj   +1 more source

Gene switching at Xenopus laevis metamorphosis

open access: yesDevelopmental Biology, 2010
During the climax of amphibian metamorphosis many tadpole organs remodel. The different remodeling strategies are controlled by thyroid hormone (TH). The liver, skin, and tail fibroblasts shut off tadpole genes and activate frog genes in the same cell without DNA replication. We refer to this as "gene switching".
Mukhi, Sandeep   +2 more
openaire   +2 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Identification and characterization of TNFalpha responsive genes in human breast cancer cells

open access: yes, 2006
One of the hallmarks of cancer is the escape of the transformed cells from apoptosis. Therefore, the identification of survival genes, allowing cancer cells to circumvent programmed cell death, could provide new diagnostic markers as well as targets for ...
Guardiola Serrano, Francisca
core  

Histone acetylation and globin gene switching

open access: yesNucleic Acids Research, 1992
An affinity-purified antibody that recognises the epitope epsilon-acetyl lysine has been used to fractionate chicken erythrocyte mononucleosomes obtained from 5 and 15 day embryos. The antibody bound chromatin was enriched in multiply acetylated forms of the core histones H3, H4 and H2B, but not in ubiquitinated H2A.
T R, Hebbes   +3 more
openaire   +3 more sources

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