Results 101 to 110 of about 104,786 (306)

Genome-wide high-resolution mapping of UV-induced mitotic recombination events in Saccharomyces cerevisiae. [PDF]

, 2013
In the yeast Saccharomyces cerevisiae and most other eukaryotes, mitotic recombination is important for the repair of double-stranded DNA breaks (DSBs). Mitotic recombination between homologous chromosomes can result in loss of heterozygosity (LOH).
Petes, Thomas D, Yin, Yi
core   +1 more source

Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna

Advanced Functional Materials, EarlyView.
We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz, Nicole Siegel, Guillermo Serrera, Javier González‐Colsa, Fangjia Zhu, Karol Kołątaj, Minoru Fujii, Hiroshi Sugimoto, Pablo Albella, Guillermo P. Acuna   +9 more
wiley   +1 more source

Constitutional Chromothripsis Rearrangements Involve Clustered Double-Stranded DNA Breaks and Nonhomologous Repair Mechanisms

Cell Reports, 2012
Chromothripsis represents a novel phenomenon in the structural variation landscape of cancer genomes. Here, we analyze the genomes of ten patients with congenital disease who were preselected to carry complex chromosomal rearrangements with more than two
Wigard P. Kloosterman, Masoumeh Tavakoli-Yaraki, Markus J. van Roosmalen, Ellen van Binsbergen, Ivo Renkens, Karen Duran, Lucia Ballarati, Sarah Vergult, Daniela Giardino, Kerstin Hansson, Claudia A.L. Ruivenkamp, Myrthe Jager, Arie van Haeringen, Elly F. Ippel, Thomas Haaf, Eberhard Passarge, Ron Hochstenbach, Björn Menten, Lidia Larizza, Victor Guryev, Martin Poot, Edwin Cuppen   +21 more
doaj   +1 more source

DNA single-strand break repair and spinocerebellar ataxia with axonal neuropathy-1 [PDF]

, 2007
DNA single-strand breaks (SSBs) are the commonest DNA lesions arising spontaneously in cells, and if not repaired may block transcription or may be converted into potentially lethal/clastogenic DNA double-strand breaks (DSBs).
Arnaudeau, Avemann, Barzilai, Bendixen, Caldecott, Caldecott, Cheng, Chrencik, Christiansen, Clements, Connelly, Culmsee, Daroui, Date, Davies, Davies, Davies, de Boer, Deng, D’Arpa, El-Khamisy, Flangas, Furuta, Godthelp, Hinz, Holm, Horwitz, Hsiang, Inamdar, Interthal, Interthal, Interthal, K.W. Caldecott, Kroeger, Lanza, Lesher, Liao, Lindahl, Liu, Mol, Moreira, Morris, Nitiss, Nouspikel, O’Driscoll, Parsons, Plo, Pommier, Pommier, Pommier, Poot, Pouliot, Pouliot, Pourquier, Pourquier, Pourquier, Pourquier, Pourquier, Rideout, Ryan, Ryan, S.F. El-Khamisy, Sarkander, Sarkander, Shao, Stewart, Strumberg, Takashima, Taylor, Thompson, van Waardenburg, Vance, Vidal, Vierck, Wang, Whitehouse, Wilson, Wu, Wu, Yan, Yang, Zhou, Zhou   +82 more
core   +1 more source

Sensing and repairing DNA double-strand breaks [PDF]

Carcinogenesis, 2002
The DNA double-strand break (DSB) is the principle cytotoxic lesion for ionizing radiation and radio-mimetic chemicals but can also be caused by mechanical stress on chromosomes or when a replicative DNA polymerase encounters a DNA single-strand break or other type of DNA lesion.
openaire   +2 more sources

Ultrasmall Platinum Nanoparticles for Radiation‐Enhanced Cancer Therapy

Advanced Functional Materials, EarlyView.
This work proposes a nanomedicine‐based strategy to enhance X‐ray radiotherapy for cancer treatment. Ultrasmall Pt‐NPs exhibit catalase‐like activity that may contribute to modulation of the tumor microenvironment and amplify interactions between radiation and biological matter, leading to increased DNA damage.
Miguel Encinas‐Gimenez, Jose I. Garcia‐Peiro, Jose L. Hueso, Eduardo Caleiras, Laura Notario, Felipe Hornos, Pilar Martin‐Duque, Antonio De la Vieja, Jesus Santamaria   +8 more
wiley   +1 more source

Replication independent formation of extrachromosomal circular DNA in mammalian cell-free system.

PLoS ONE, 2009
Extrachromosomal circular DNA (eccDNA) is a pool of circular double stranded DNA molecules found in all eukaryotic cells and composed of repeated chromosomal sequences. It was proposed to be involved in genomic instability, aging and alternative telomere
Zoya Cohen, Sara Lavi
doaj   +1 more source

The extent of error-prone replication-restart by homologous recombination is controlled by Exo1 and checkpoint proteins [PDF]

, 2014
Genetic instability, a hallmark of cancer, can occur when the replication machinery encounters a barrier. The intra-S phase checkpoint maintains stalled replication forks in a replication-competent configuration by phosphorylating replisome components ...
Ahn, Alabert, Bailis, Barlow, Bastia, Bester, Biswas, Boddy, Bolderson, Brown, Bähler, Carr, Carr, Casper, Cha, Chen, Cobb, Cobb, Codlin, Cotta-Ramusino, Dalgaard, De Piccoli, Durkin, El-Shemerly, Errico, Eydmann, Froget, Haghnazari, Halazonetis, Hartsuiker, Heichinger, Hu, Iraqui, Jia, Kai, Kaochar, Katou, Kolodner, Koundrioukoff, Krejci, Lambert, Lambert, Lambert, Lambert, Lambert, Lambert, Lee, Lindsay, Lisby, Lopes, Lucca, Maundrell, Meister, Mimitou, Miyabe, Miyabe, Mizuno, Mizuno, Moreau, Moreau, Moreno, Morin, Myung, Myung, Pandita, Raynard, Sabatinos, Segurado, Segurado, Smolka, Sogo, Stracker, Sun, Symington, Sørensen, Tercero, Tsubouchi, Watson, Zhu, Zou, Zubko   +80 more
core   +2 more sources

Repair of DNA Double-Strand Breaks in Heterochromatin [PDF]

Biomolecules, 2016
DNA double-strand breaks (DSBs) are among the most damaging lesions in DNA, since, if not identified and repaired, they can lead to insertions, deletions or chromosomal rearrangements. DSBs can be in the form of simple or complex breaks, and may be repaired by one of a number of processes, the nature of which depends on the complexity of the break or ...
openaire   +3 more sources

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

Advanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng, Camila B. Tovani, Simona Bianco, Gianni Comandini, Aya Elghajiji, Mina Aleemardani, Roxana Moscalu, Jeremie Zappia, Bianca Fernandes, Olivia Annett, Chrissy L. Hammond, Jason Wong, Dave J. Adams, Fabrizio Scarpa, Michael R. Whitehouse, Annela M. Seddon, James P. K. Armstrong   +16 more
wiley   +1 more source