Results 41 to 50 of about 206,891 (281)

Characterisation of unessential genes required for survival under conditions of DNA stress

Journal of Genetic Engineering and Biotechnology, 2020
Background Genomic instability is a hallmark of cancer. Cancer progression depends on the development and amplification of mutations that alter the cellular response to threats to the genome. This can lead to DNA replication stress and the potential loss
Hassan Ahmed Ezzat, Clive Price
doaj   +1 more source

Kinetic model of DNA replication in eukaryotic organisms

, 2003
We formulate a kinetic model of DNA replication that quantitatively describes recent results on DNA replication in the in vitro system of Xenopus laevis prior to the mid-blastula transition.
Avrami, Avrami, Avrami, Ben-Naim, Bensimon, Berezney, Blow, Blow, Blow, Blow, Blumenthal, Brewer, Buongiorno-Nardelli, Cahn, Cairns, Christian, Coverley, Friedman, Gilbert, Gomez, Hand, Herrick, Herrick, Huberman, Hyrien, Jackson, Jasny, Johnson, Kolmogorov, Laskey, Lu, Lucas, Mahbubani, Marheineke, Michalet, Mills, Pasero, Pierron, Plischke, Press, Raghuraman, Rowles, Sekimoto, Shinomiya, Shivashankar, Simon, Walter, Wu   +47 more
core   +1 more source

Pif1-Family helicases support fork convergence during DNA replication termination in eukaryotes [PDF]

, 2019
The convergence of two DNA replication forks creates unique problems during DNA replication termination. In E. coli and SV40, the release of torsional strain by type II topoisomerases is critical for converging replisomes to complete DNA synthesis, but ...
Baxter, Jonathan, Deegan, Tom D, Labib, Karim P M, Ortiz Bazán, María Ángeles, Yeeles, Joseph T P   +4 more
core   +6 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Functional compartmentalization of Rad9 and Hus1 reveals diverse assembly of the 9-1-1 complex components during the DNA damage response in Leishmania [PDF]

, 2016
The Rad9-Rad1-Hus1 (9-1-1) complex is a key component in the coordination of DNA damage sensing, cell cycle progression and DNA repair pathways in eukaryotic cells. This PCNA-related trimer is loaded onto RPA-coated single stranded DNA and interacts with
Damasceno, Jeziel D., McCulloch, Richard, Obonaga, Ricardo, Santos, Elaine V., Scott, Alan, Tosi, Luiz R.O.   +5 more
core   +1 more source

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

Molecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero, Alejandro Belmonte‐Fernández, Mónica González‐Moreno, Laura Rodríguez‐Cordero, Begoña Pérez‐Valderrama, Joaquín Herrero‐Ruíz, Francisco Romero, Carmen Sáez, Miguel Á. Japón   +8 more
wiley   +1 more source

Evolution of DNA replication protein complexes in eukaryotes and Archaea. [PDF]

PLoS ONE, 2010
BACKGROUND: The replication of DNA in Archaea and eukaryotes requires several ancillary complexes, including proliferating cell nuclear antigen (PCNA), replication factor C (RFC), and the minichromosome maintenance (MCM) complex.
Nicholas Chia, Isaac Cann, Gary J Olsen
doaj   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

Molecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone, James Dunford, Eleanor Calcutt, Vicki Gamble, Filiz Senbabaoglu Aksu, Lorena Ligammari, Georgina Wherry, Giorgia Gaeta, John C. Christianson, Adrienne M. Flanagan, Udo Oppermann, Adam P. Cribbs   +11 more
wiley   +1 more source

Cdt1 revisited: complex and tight regulation during the cell cycle and consequences of deregulation in mammalian cells

Cell Division, 2006
In eukaryotic cells, replication of genomic DNA initiates from multiple replication origins distributed on multiple chromosomes. To ensure that each origin is activated precisely only once during each S phase, a system has evolved which features periodic
Fujita Masatoshi
doaj   +1 more source

Structure of an archaeal PCNA1-PCNA2-FEN1 complex: elucidating PCNA subunit and client enzyme specificity. [PDF]

, 2006
The archaeal/eukaryotic proliferating cell nuclear antigen (PCNA) toroidal clamp interacts with a host of DNA modifying enzymes, providing a stable anchorage and enhancing their respective processivities.
Andrew S. Doré, Antony W. Oliver, Brunger, Bunting, CCP4, Chang, Chapados, Dalrymple, DeLano, Dianova, Dionne, Dionne, Emsley, Friedrich-Heineken, Gulbis, Helt, Hingorani, Hosfield, Kelman, Kong, Kontopidis, Krishna, Krokan, Laurence H. Pearl, Leslie, Mairi L. Kilkenny, Matsumiya, Matsumoto, Murante, Murshudov, Oyama, Parker, Parrilla-Castellar, Pearl, Roberts, S. Mark Roe, Sakurai, Sarah A. Jones, Shamoo, Shen, Smirnova, Stephen D. Bell, Storoni, Tom, Toueille, Tsuchimoto, Venclovas, Volkmer, Wang   +48 more
core   +4 more sources