Results 211 to 220 of about 6,490,832 (265)

Regulation of the lncRNA NEAT1 by p53‐ΔNp63 crosstalk modulates the DNA damage response and therapeutic efficacy in HNSCC

open access: yesMolecular Oncology, EarlyView.
In head and neck squamous cell carcinoma (HNSCC) p53 and p63 exert opposite roles on the transcription regulation of the lncRNA NEAT1. Under basal conditions, p53 levels are low and p63 represses NEAT1 expression. Upon genotoxic stress, p53 is rapidly induced, displacing p63 from the NEAT1 promoter leading to NEAT1 transcriptional activation and ...
Sara De Domenico   +5 more
wiley   +1 more source

Paclitaxel induces NM2‐dependent cellular contraction through GEF‐H1 dissociation from microtubules and RhoA/ROCK activation in cancer cells

open access: yesMolecular Oncology, EarlyView.
Taxanes are widely used chemotherapeutics whose effects on cellular mechanics remain poorly understood. We show that paclitaxel induces rapid cellular contraction by promoting GEF‐H1 dissociation from microtubules and non‐muscle myosin II activation through RhoA/ROCK.
Gloria Asensio‐Juárez   +5 more
wiley   +1 more source

p190A/ARHGAP35 and p190B/ARHGAP5 proteins in endometrial cancer: a novel cancer‐relevant paralog interplay

open access: yesMolecular Oncology, EarlyView.
This study identifies ARHGAP5, in addition to the frequently mutated ARHGAP35, as significantly mutated in endometrial cancer. Mutations in both genes co‐occur and are associated with their correlated downregulation. Functional CRISPR studies show that both paralogs regulate similar pathways, including actin cytoskeleton organization.
Mathilde Pinault   +12 more
wiley   +1 more source

Bridging the gap: a genetically validated avian chorioallantoic membrane platform for investigation of spontaneous circulating tumor cells

open access: yesMolecular Oncology, EarlyView.
We established the avian chorioallantoic membrane (CAM) assay as a scalable in vivo model for studying circulating tumor cells (CTCs). Human gastrointestinal tumors spontaneously released genetically validated CTCs that were detected across multiple platforms, demonstrating that the CAM model provides an accessible tool for investigating early cancer ...
Dennis Roth   +17 more
wiley   +1 more source

Epistasis in protein evolution [PDF]

open access: yesProtein Science, 2016
AbstractThe structure, function, and evolution of proteins depend on physical and genetic interactions among amino acids. Recent studies have used new strategies to explore the prevalence, biochemical mechanisms, and evolutionary implications of these interactions—called epistasis—within proteins.
Tyler N Starr, Joseph W Thornton
exaly   +3 more sources

In vitro evolution of proteins

Journal of Bioscience and Bioengineering, 2006
Consecutive rounds of diversification and selection of the fittest is believed to be the main driving force for the evolution of life. For the evolution of life to proceed, all living cells are surrounded by a lipid bilayer that separates their own genes from the external environment and from those of other organisms.
Tomoaki, Matsuura, Tetsuya, Yomo
openaire   +2 more sources

On the evolution of blue proteins

Biochimie, 1979
Amino acid sequences of 8 plastocyanins, 8 azurins, stellacyanin, two regions in human ceruloplasmin (ferroxidase)--all of which proteins are known to bind a blue (type 1) copper--and subunit II of bovine mitochondrial cytochrome c oxidase were compared by statistical methods to assess similarities and derive possible evolutionary relationships.
L, Ryden, J O, Lundgren
openaire   +2 more sources

Evolution of the Protein Repertoire

Science, 2003
Most proteins have been formed by gene duplication, recombination, and divergence. Proteins of known structure can be matched to about 50% of genome sequences, and these data provide a quantitative description and can suggest hypotheses about the origins of these processes.
Chothia, C   +3 more
openaire   +3 more sources

Protein Evolution in the Flaviviruses

Journal of Molecular Evolution, 2020
Proteins are commonly used as molecular targets against pathogens such as viruses and bacteria. However, pathogens can evolve rapidly permitting their populations to increase in protein diversity over time and thus escape to the activity of a molecular therapy.
openaire   +2 more sources

Evolution of protein modularity

Current Opinion in Structural Biology, 2009
Proteins in their evolution appear to follow several discrete stages, which is reflected in their modular organization. The sequences of the protein modules are highly variable while their functions and structures are rather conserved. The relatedness of the variable sequences is well represented by the networks in natural protein sequence space that ...
Edward N, Trifonov, Zakharia M, Frenkel
openaire   +2 more sources

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