Results 51 to 60 of about 1,762,100 (297)

Epigenetic reprogramming of lineage switching in cancer

open access: yesFEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı   +4 more
wiley   +1 more source

Identification of Structural Proteins of Rhizobium meliloti Temperate Phage 16-3 [PDF]

open access: yes, 1982
The structural proteins of Rhizobium meliloti temperate phage 16-3 have been analysed by means of polyacrylamide gel electrophoresis, isoelectric focusing and agarose gel electrophoresis.
Dudás, Brigitta   +3 more
core   +1 more source

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

open access: yesFEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

Exploiting a Phage-Bacterium Interaction System as a Molecular Switch to Decipher Macromolecular Interactions in the Living Cell

open access: yesViruses, 2018
Pathogenicity islands of Staphylococcus aureus are under the strong control of helper phages, where regulation is communicated at the gene expression level via a family of specific repressor proteins.
Éva Viola Surányi   +6 more
doaj   +1 more source

Pumilio binds para mRNA and requires nanos and brat to regulate sodium current in drosophila motoneurons [PDF]

open access: yes, 2008
Homeostatic regulation of ionic currents is of paramount importance during periods of synaptic growth or remodeling. Our previous work has identified the translational repressor Pumilio (Pum) as a regulator of sodium current (INa) and excitability in ...
Moffat, K G   +12 more
core   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Characterization of Schnurri : an integral component of the Dpp-signaling pathway in "Drosophila melanogaster" [PDF]

open access: yes, 2004
Signaling by the transforming growth factor-β (TGF-β) family of ligands plays a crucial role during development and tissue homeostasis in all multicellular organisms. The signal transduction pathway is highly conserved and relatively simple.
Hartmann, Britta
core   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

open access: yesMolecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce   +11 more
wiley   +1 more source

YgaE Regulates Out Membrane Proteins in Salmonella enterica Serovar Typhi under Hyperosmotic Stress

open access: yesThe Scientific World Journal, 2014
Salmonella enterica serovar Typhi (S. Typhi) is a human-specific pathogen that causes typhoid fever. In this study, we constructed ΔygaE mutant and a microarray was performed to investigate the role of ygaE in regulation of gene expression changes in ...
Min Wang   +6 more
doaj   +1 more source

Evidence That Runt Acts as a Counter-Repressor of Groucho During Drosophila melanogaster Primary Sex Determination

open access: yesG3: Genes, Genomes, Genetics, 2020
Runx proteins are bifunctional transcription factors that both repress and activate transcription in animal cells. Typically, Runx proteins work in concert with other transcriptional regulators, including co-activators and co-repressors to mediate their ...
Sharvani Mahadeveraju   +2 more
doaj   +1 more source

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