Results 51 to 60 of about 39,529 (294)

New trends for metal complexes with anticancer activity [PDF]

, 2008
Medicinal inorganic chemistry can exploit the unique properties of metal ions for the design of new drugs. This has, for instance, led to the clinical application of chemotherapeutic agents for cancer treatment, such as cisplatin. The use of cisplatin is,
Ang, Ang, Barnard, Barnes, Bednarski, Bergamo, Bregman, Calderone, Casini, Debreczeni, Dixon, Dyson, Failes, Feazell, Guo, Habtemariam, Hall, Hambley, Hannon, Harris, Heringova, Hillard, Hotze, James, Jung, Komeda, Liu, Lutterman, MacDiarmid, Mackay, Mackay, McNae, Meggers, Milacic, Noor, Oleksi, Orvig, Ott, Pascu, Peacock, Peter J Sadler, Pieter CA Bruijnincx, Reed, Schatzschneider, Schlawe, Scolaro, Smalley, Sun, Thompson, Timerbaev, Urig, Urig, van Zutphen, Wang, Weidt, Yan, Yang   +56 more
core   +1 more source

The Targeting of Quadruplex Nucleic Acids in Human Cancers

Proceedings, 2019
The overwhelming majority of DNA in the human genome is double-stranded. However,regions comprising several short guanine-tracts are capable of forming higher-order structures,termed quadruplexes. [...]
Stephen Neidle
doaj   +1 more source

Activity modulation and allosteric control of a scaffolded DNAzyme using a dynamic DNA nanostructure. [PDF]

, 2016
Recognition of the fundamental importance of allosteric regulation in biology dates back to not long after its discovery in the 1960s. Our ability to rationally engineer this potentially useful property into normally non-allosteric catalysts, however ...
Fan, Chunhai, Huang, Qing, Li, Jiang, Mao, Xiuhai, Pei, Hao, Plaxco, Kevin W, Shi, Jiye, Simon, Anna J   +7 more
core   +1 more source

G-quadruplex organic frameworks [PDF]

Nature Chemistry, 2016
Two-dimensional covalent organic frameworks often π stack into crystalline solids that allow precise spatial positioning of molecular building blocks. Inspired by the hydrogen-bonded G-quadruplexes found frequently in guanine-rich DNA, here we show that this structural motif can be exploited to guide the self-assembly of naphthalene diimide and ...
Yi-Lin Wu, Noah E. Horwitz, Kan-Sheng Chen, Diego A. Gomez-Gualdron, Norman S. Luu, Lin Ma, Timothy C. Wang, Mark C. Hersam, Joseph T. Hupp, Omar K. Farha, Randall Q. Snurr, Michael R. Wasielewski   +11 more
openaire   +3 more sources

G-quadruplexes and helicases [PDF]

Nucleic Acids Research, 2016
Guanine-rich DNA strands can fold in vitro into non-canonical DNA structures called G-quadruplexes. These structures may be very stable under physiological conditions. Evidence suggests that G-quadruplex structures may act as 'knots' within genomic DNA, and it has been hypothesized that proteins may have evolved to remove these structures.
Mendoza, Oscar, Bourdoncle, Anne, Boulé, Jean-Baptiste, Brosh, Robert, Mergny, Jean-Louis   +4 more
openaire   +3 more sources

Kinetics of tetramolecular quadruplexes [PDF]

Nucleic Acids Research, 2005
The melting of tetramolecular DNA or RNA quadruplexes is kinetically irreversible. However, rather than being a hindrance, this kinetic inertia allows us to study association and dissociation processes independently. From a kinetic point of view, the association reaction is fourth order in monomer and the dissociation first order in quadruplex.
Mergny, Jean-Louis, De Cian, Anne, Ghelab, Amar, Sacca, Barbara, Lacroix, Laurent   +4 more
openaire   +3 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Electrostatics dominate quadruplex stability [PDF]

Biopolymers, 2006
AbstractStabilization of nucleic acid structures results from a balance of multiple interactions, including electrostatics, base stacking, hydrophobic interactions, hydrogen bonding, van der Waals forces, etc. Nucleic acid quadruplexes are unusual structures in that their formation is driven by specific binding of metal ions.
Ivan V, Smirnov, Richard H, Shafer
openaire   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source