Results 41 to 50 of about 1,048,189 (263)

The prebiotic evolutionary advantage of transferring genetic information from RNA to DNA. [PDF]

, 2011
In the early 'RNA world' stage of life, RNA stored genetic information and catalyzed chemical reactions. However, the RNA world eventually gave rise to the DNA-RNA-protein world, and this transition included the 'genetic takeover' of information storage ...
Chen, Irene A, Gerland, Ulrich, Leu, Kevin, Obermayer, Benedikt, Rajamani, Sudha   +4 more
core   +4 more sources

Replicating repetitive DNA

Nature Cell Biology, 2016
The function and regulation of repetitive DNA, the 'dark matter' of the genome, is still only rudimentarily understood. Now a study investigating DNA replication of repetitive centromeric chromosome segments has started to expose a fascinating replication program that involves suppression of ATR signalling, in particular during replication stress.
Tognetti, S, Speck, C
openaire   +4 more sources

PrimPol is required for replicative tolerance of G quadruplexes in vertebrate cells [PDF]

, 2016
G quadruplexes (G4s) can present potent blocks to DNA replication. Accurate and timely replication of G4s in vertebrates requires multiple specialized DNA helicases and polymerases to prevent genetic and epigenetic instability.
Bailey, Laura J, Doherty, Aidan J, Guilbaud, Guillaume, Guilliam, Thomas A, Jozwiakowski, Stanislaw K, Romanello, Marina, Sale, Julian E, Schiavone, Davide   +7 more
core   +1 more source

Synthesis and Evaluation of Biological Activities of Bis(spiropyrazolone)cyclopropanes: A Potential Application against Leishmaniasis

Molecules, 2021
This work focuses on the search and development of drugs that may become new alternatives to the commercial drugs currently available for treatment of leishmaniasis. We have designed and synthesized 12 derivatives of bis(spiropyrazolone)cyclopropanes. We
Olalla Barreiro-Costa, Gabriela Morales-Noboa, Patricio Rojas-Silva, Eliana Lara-Barba, Javier Santamaría-Aguirre, Natalia Bailón-Moscoso, Juan Carlos Romero-Benavides, Ana Herrera, Cristina Cueva, Lenin Ron-Garrido, Ana Poveda, Jorge Heredia-Moya   +11 more
doaj   +1 more source

Smc5/6: a link between DNA repair and unidirectional replication? [PDF]

, 2008
Of the three structural maintenance of chromosome (SMC) complexes, two directly regulate chromosome dynamics. The third, Smc5/6, functions mainly in homologous recombination and in completing DNA replication.
A Losada, Antony M. Carr, AR Lehmann, B Hu, D Branzei, D Ivanov, DM Sheedy, E Ampatzidou, E Unal, E Unal, EA Andrews, ES Chen, F Onoda, G De Piccoli, GJ Cost, H Morikawa, HB Lindroos, HM Verkade, I Miyabe, J Palecek, J Rouse, J Sergeant, J Torres-Rosell, J Torres-Rosell, JK Chin, Johanne M. Murray, KL Borden, KM Lee, L Strom, L Strom, MI Fousteri, MN Boddy, N Aono, PR Potts, PR Potts, PR Potts, S Pebernard, S Pebernard, SH Harvey, T de Lange, T Kobayashi, T Mengiste, T Morishita, TM Roberts, WH McDonald, WM Thorburn, X Zhao   +46 more
core   +1 more source

MCM2-7 ring closure involves the Mcm5 C-terminus and triggers Mcm4 ATP hydrolysis

Nature Communications
The eukaryotic helicase MCM2-7, is loaded by ORC, Cdc6 and Cdt1 as a double-hexamer onto replication origins. The insertion of DNA into the helicase leads to partial MCM2-7 ring closure, while ATP hydrolysis is essential for consecutive steps in pre ...
Sarah V. Faull, Marta Barbon, Audrey Mossler, Zuanning Yuan, Lin Bai, L. Maximilian Reuter, Alberto Riera, Christian Winkler, Indiana Magdalou, Matthew Peach, Huilin Li, Christian Speck   +11 more
doaj   +1 more source

Error correction during DNA replication

, 2012
DNA polymerase (DNAP) is a dual-purpose enzyme that plays two opposite roles in two different situations during DNA replication. It plays its normal role as a {\it polymerase} catalyzing the elongation of a new DNA molecule by adding a monomer.
Chowdhury, Debashish, Sharma, Ajeet K.
core   +1 more source

Gene Expression and the Physiological Role of Transforming Growth Factor-α in the Mouse Pituitary [PDF]

, 2003
Transforming growth factor-alpha (TGF-alpha), a member of the epidermal growth factor (EGF) family, is produced within the mouse anterior pituitaries. However, the cell types of TGF-alpha-expressing cells and the physiological roles of TGF-a within mouse
Kakeya, Tomoshi, Masui, Tohru, Oomizu, Souichi, Sharma, Seema, Takahashi, Sumio, Takeuchi, Sakae   +5 more
core   +1 more source

DNA replication and recombination [PDF]

Nature, 2003
Knowledge of the structure of DNA enabled scientists to undertake the difficult task of deciphering the detailed molecular mechanisms of two dynamic processes that are central to life: the copying of the genetic information by DNA replication, and its reassortment and repair by DNA recombination.
openaire   +2 more sources

RAD50 missense variants differentially affect the DNA damage response and mitotic progression

FEBS Letters, EarlyView.
RAD50 incorporates into the MRN complex and initiates the DNA damage response. Furthermore, RAD50 promotes mitotic progression. RAD50 missense variants capable of forming an MRN complex supported the DNA damage response and mitotic features to different extents in complementation experiments, indicating these functions are separable and might impact ...
Hanna Redeker, Swantje Kebel, Lea Völkening, Anna Vatselia, Louisa Weinhold, Girmay Asgedom, Axel Schambach, Detlev Schindler, Thilo Dörk, Kristine Bousset   +9 more
wiley   +1 more source